diff --git a/exercises/00_intro/intro1.rs b/exercises/00_intro/intro1.rs index a66af3b5..5dd18b45 100644 --- a/exercises/00_intro/intro1.rs +++ b/exercises/00_intro/intro1.rs @@ -13,7 +13,7 @@ // Execute `rustlings hint intro1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { println!("Hello and"); diff --git a/exercises/00_intro/intro2.rs b/exercises/00_intro/intro2.rs index e648da67..a28ad3dc 100644 --- a/exercises/00_intro/intro2.rs +++ b/exercises/00_intro/intro2.rs @@ -5,8 +5,8 @@ // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - println!("Hello there!") + printline!("Hello there!") } diff --git a/exercises/01_variables/variables1.rs b/exercises/01_variables/variables1.rs index 51d375ad..b3e089a5 100644 --- a/exercises/01_variables/variables1.rs +++ b/exercises/01_variables/variables1.rs @@ -5,9 +5,9 @@ // Execute `rustlings hint variables1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - let x = 5; + x = 5; println!("x has the value {}", x); } diff --git a/exercises/01_variables/variables2.rs b/exercises/01_variables/variables2.rs index 5685b50e..e1c23edf 100644 --- a/exercises/01_variables/variables2.rs +++ b/exercises/01_variables/variables2.rs @@ -3,10 +3,10 @@ // Execute `rustlings hint variables2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - let x = 0; + let x; if x == 10 { println!("x is ten!"); } else { diff --git a/exercises/01_variables/variables3.rs b/exercises/01_variables/variables3.rs index 4c9d8e62..86bed419 100644 --- a/exercises/01_variables/variables3.rs +++ b/exercises/01_variables/variables3.rs @@ -3,9 +3,9 @@ // Execute `rustlings hint variables3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - let x: i32 = 0; + let x: i32; println!("Number {}", x); } diff --git a/exercises/01_variables/variables4.rs b/exercises/01_variables/variables4.rs index 3da7ff3c..5394f394 100644 --- a/exercises/01_variables/variables4.rs +++ b/exercises/01_variables/variables4.rs @@ -3,10 +3,10 @@ // Execute `rustlings hint variables4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - let mut x = 3; + let x = 3; println!("Number {}", x); x = 5; // don't change this line println!("Number {}", x); diff --git a/exercises/01_variables/variables5.rs b/exercises/01_variables/variables5.rs index aa4241b3..a29b38be 100644 --- a/exercises/01_variables/variables5.rs +++ b/exercises/01_variables/variables5.rs @@ -3,11 +3,11 @@ // Execute `rustlings hint variables5` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { let number = "T-H-R-E-E"; // don't change this line println!("Spell a Number : {}", number); - let number = 3; // don't rename this variable + number = 3; // don't rename this variable println!("Number plus two is : {}", number + 2); } diff --git a/exercises/01_variables/variables6.rs b/exercises/01_variables/variables6.rs index 6505c03e..853183ba 100644 --- a/exercises/01_variables/variables6.rs +++ b/exercises/01_variables/variables6.rs @@ -3,9 +3,9 @@ // Execute `rustlings hint variables6` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -const NUMBER: i32 = 3; +const NUMBER = 3; fn main() { println!("Number {}", NUMBER); } diff --git a/exercises/02_functions/functions1.rs b/exercises/02_functions/functions1.rs index 870f1789..40ed9a07 100644 --- a/exercises/02_functions/functions1.rs +++ b/exercises/02_functions/functions1.rs @@ -3,12 +3,8 @@ // Execute `rustlings hint functions1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { call_me(); } - -fn call_me() { - // todo!() -} diff --git a/exercises/02_functions/functions2.rs b/exercises/02_functions/functions2.rs index 8eedf4a4..5154f34d 100644 --- a/exercises/02_functions/functions2.rs +++ b/exercises/02_functions/functions2.rs @@ -3,13 +3,13 @@ // Execute `rustlings hint functions2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { call_me(3); } -fn call_me(num: i32) { +fn call_me(num:) { for i in 0..num { println!("Ring! Call number {}", i + 1); } diff --git a/exercises/02_functions/functions3.rs b/exercises/02_functions/functions3.rs index 3c3f8b80..74f44d6d 100644 --- a/exercises/02_functions/functions3.rs +++ b/exercises/02_functions/functions3.rs @@ -3,10 +3,10 @@ // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - call_me(0); + call_me(); } fn call_me(num: u32) { diff --git a/exercises/02_functions/functions4.rs b/exercises/02_functions/functions4.rs index 3dbe1f68..77c4b2aa 100644 --- a/exercises/02_functions/functions4.rs +++ b/exercises/02_functions/functions4.rs @@ -8,14 +8,14 @@ // Execute `rustlings hint functions4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { let original_price = 51; println!("Your sale price is {}", sale_price(original_price)); } -fn sale_price(price: i32) -> i32 { +fn sale_price(price: i32) -> { if is_even(price) { price - 10 } else { diff --git a/exercises/02_functions/functions5.rs b/exercises/02_functions/functions5.rs index 18116007..f1b63f48 100644 --- a/exercises/02_functions/functions5.rs +++ b/exercises/02_functions/functions5.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint functions5` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { let answer = square(3); @@ -11,5 +11,5 @@ fn main() { } fn square(num: i32) -> i32 { - num * num + num * num; } diff --git a/exercises/03_if/if1.rs b/exercises/03_if/if1.rs index 365742d9..4734d78f 100644 --- a/exercises/03_if/if1.rs +++ b/exercises/03_if/if1.rs @@ -2,10 +2,13 @@ // // Execute `rustlings hint if1` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE pub fn bigger(a: i32, b: i32) -> i32 { - if a > b { a } else { b } + // Complete this function to return the bigger number! + // Do not use: + // - another function call + // - additional variables } // Don't mind this for now :) diff --git a/exercises/03_if/if2.rs b/exercises/03_if/if2.rs index 8bd151d9..f512f13f 100644 --- a/exercises/03_if/if2.rs +++ b/exercises/03_if/if2.rs @@ -5,15 +5,13 @@ // // Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE pub fn foo_if_fizz(fizzish: &str) -> &str { if fizzish == "fizz" { "foo" - } else if fizzish == "fuzz" { - "bar" } else { - "baz" + 1 } } diff --git a/exercises/03_if/if3.rs b/exercises/03_if/if3.rs index 7d9cb3cf..16962740 100644 --- a/exercises/03_if/if3.rs +++ b/exercises/03_if/if3.rs @@ -2,17 +2,17 @@ // // Execute `rustlings hint if3` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE pub fn animal_habitat(animal: &str) -> &'static str { let identifier = if animal == "crab" { 1 } else if animal == "gopher" { - 2 + 2.0 } else if animal == "snake" { 3 } else { - 0 + "Unknown" }; // DO NOT CHANGE THIS STATEMENT BELOW diff --git a/exercises/04_primitive_types/primitive_types1.rs b/exercises/04_primitive_types/primitive_types1.rs index 2882657b..36633400 100644 --- a/exercises/04_primitive_types/primitive_types1.rs +++ b/exercises/04_primitive_types/primitive_types1.rs @@ -3,7 +3,7 @@ // Fill in the rest of the line that has code missing! No hints, there's no // tricks, just get used to typing these :) -// I AM DONE +// I AM NOT DONE fn main() { // Booleans (`bool`) @@ -13,7 +13,7 @@ fn main() { println!("Good morning!"); } - let is_evening = false; // Finish the rest of this line like the example! Or make it be false! + let // Finish the rest of this line like the example! Or make it be false! if is_evening { println!("Good evening!"); } diff --git a/exercises/04_primitive_types/primitive_types2.rs b/exercises/04_primitive_types/primitive_types2.rs index e1f35eb8..f1616ed3 100644 --- a/exercises/04_primitive_types/primitive_types2.rs +++ b/exercises/04_primitive_types/primitive_types2.rs @@ -3,7 +3,7 @@ // Fill in the rest of the line that has code missing! No hints, there's no // tricks, just get used to typing these :) -// I AM DONE +// I AM NOT DONE fn main() { // Characters (`char`) @@ -19,7 +19,7 @@ fn main() { println!("Neither alphabetic nor numeric!"); } - let your_character = '😊'; // Finish this line like the example! What's your favorite character? + let // Finish this line like the example! What's your favorite character? // Try a letter, try a number, try a special character, try a character // from a different language than your own, try an emoji! if your_character.is_alphabetic() { diff --git a/exercises/04_primitive_types/primitive_types3.rs b/exercises/04_primitive_types/primitive_types3.rs index 08167951..8b0de44e 100644 --- a/exercises/04_primitive_types/primitive_types3.rs +++ b/exercises/04_primitive_types/primitive_types3.rs @@ -5,10 +5,10 @@ // Execute `rustlings hint primitive_types3` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE fn main() { - let a = [0; 100]; + let a = ??? if a.len() >= 100 { println!("Wow, that's a big array!"); diff --git a/exercises/04_primitive_types/primitive_types4.rs b/exercises/04_primitive_types/primitive_types4.rs index e08c9237..d44d8776 100644 --- a/exercises/04_primitive_types/primitive_types4.rs +++ b/exercises/04_primitive_types/primitive_types4.rs @@ -5,13 +5,13 @@ // Execute `rustlings hint primitive_types4` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn slice_out_of_array() { let a = [1, 2, 3, 4, 5]; - let nice_slice = &a[1..4]; + let nice_slice = ??? assert_eq!([2, 3, 4], nice_slice) } diff --git a/exercises/04_primitive_types/primitive_types5.rs b/exercises/04_primitive_types/primitive_types5.rs index 421f3f3b..f646986e 100644 --- a/exercises/04_primitive_types/primitive_types5.rs +++ b/exercises/04_primitive_types/primitive_types5.rs @@ -5,11 +5,11 @@ // Execute `rustlings hint primitive_types5` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE fn main() { let cat = ("Furry McFurson", 3.5); - let (name, age) = cat; + let /* your pattern here */ = cat; println!("{} is {} years old.", name, age); } diff --git a/exercises/04_primitive_types/primitive_types6.rs b/exercises/04_primitive_types/primitive_types6.rs index 8ab8736d..07cc46c6 100644 --- a/exercises/04_primitive_types/primitive_types6.rs +++ b/exercises/04_primitive_types/primitive_types6.rs @@ -6,13 +6,13 @@ // Execute `rustlings hint primitive_types6` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn indexing_tuple() { let numbers = (1, 2, 3); // Replace below ??? with the tuple indexing syntax. - let second = numbers.1; + let second = ???; assert_eq!(2, second, "This is not the 2nd number in the tuple!") diff --git a/exercises/05_vecs/vecs1.rs b/exercises/05_vecs/vecs1.rs index 8f6c1230..65b7a7f8 100644 --- a/exercises/05_vecs/vecs1.rs +++ b/exercises/05_vecs/vecs1.rs @@ -7,11 +7,11 @@ // // Execute `rustlings hint vecs1` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE fn array_and_vec() -> ([i32; 4], Vec) { let a = [10, 20, 30, 40]; // a plain array - let v = vec![10, 20, 30, 40]; // TODO: declare your vector here with the macro for vectors + let v = // TODO: declare your vector here with the macro for vectors (a, v) } diff --git a/exercises/05_vecs/vecs2.rs b/exercises/05_vecs/vecs2.rs index d3e06511..e92c970a 100644 --- a/exercises/05_vecs/vecs2.rs +++ b/exercises/05_vecs/vecs2.rs @@ -7,13 +7,13 @@ // // Execute `rustlings hint vecs2` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE fn vec_loop(mut v: Vec) -> Vec { for element in v.iter_mut() { // TODO: Fill this up so that each element in the Vec `v` is // multiplied by 2. - *element *= 2; + ??? } // At this point, `v` should be equal to [4, 8, 12, 16, 20]. @@ -24,7 +24,7 @@ fn vec_map(v: &Vec) -> Vec { v.iter().map(|element| { // TODO: Do the same thing as above - but instead of mutating the // Vec, you can just return the new number! - element * 2 + ??? }).collect() } diff --git a/exercises/06_move_semantics/move_semantics1.rs b/exercises/06_move_semantics/move_semantics1.rs index 4e8df451..e0639375 100644 --- a/exercises/06_move_semantics/move_semantics1.rs +++ b/exercises/06_move_semantics/move_semantics1.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint move_semantics1` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn main() { @@ -15,7 +15,7 @@ fn main() { } fn fill_vec(vec: Vec) -> Vec { - let mut vec = vec; + let vec = vec; vec.push(88); diff --git a/exercises/06_move_semantics/move_semantics2.rs b/exercises/06_move_semantics/move_semantics2.rs index 83d1bd83..baf6bcc9 100644 --- a/exercises/06_move_semantics/move_semantics2.rs +++ b/exercises/06_move_semantics/move_semantics2.rs @@ -5,20 +5,20 @@ // Execute `rustlings hint move_semantics2` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn main() { let vec0 = vec![22, 44, 66]; - let mut vec1 = fill_vec(&vec0); + let mut vec1 = fill_vec(vec0); assert_eq!(vec0, vec![22, 44, 66]); assert_eq!(vec1, vec![22, 44, 66, 88]); } -fn fill_vec(vec: &Vec) -> Vec { - let mut vec = vec.clone(); +fn fill_vec(vec: Vec) -> Vec { + let mut vec = vec; vec.push(88); diff --git a/exercises/06_move_semantics/move_semantics3.rs b/exercises/06_move_semantics/move_semantics3.rs index 7d009e0f..7af9e694 100644 --- a/exercises/06_move_semantics/move_semantics3.rs +++ b/exercises/06_move_semantics/move_semantics3.rs @@ -6,7 +6,7 @@ // Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn main() { @@ -17,7 +17,7 @@ fn main() { assert_eq!(vec1, vec![22, 44, 66, 88]); } -fn fill_vec(mut vec: Vec) -> Vec { +fn fill_vec(vec: Vec) -> Vec { vec.push(88); vec diff --git a/exercises/06_move_semantics/move_semantics4.rs b/exercises/06_move_semantics/move_semantics4.rs index 89cd900d..80b49dba 100644 --- a/exercises/06_move_semantics/move_semantics4.rs +++ b/exercises/06_move_semantics/move_semantics4.rs @@ -7,20 +7,21 @@ // Execute `rustlings hint move_semantics4` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn main() { - - let mut vec1 = fill_vec(); - + let vec0 = vec![22, 44, 66]; + + let mut vec1 = fill_vec(vec0); + assert_eq!(vec1, vec![22, 44, 66, 88]); } // `fill_vec()` no longer takes `vec: Vec` as argument - don't change this! fn fill_vec() -> Vec { // Instead, let's create and fill the Vec in here - how do you do that? - let mut vec = vec![22, 44, 66]; + let mut vec = vec; vec.push(88); diff --git a/exercises/06_move_semantics/move_semantics5.rs b/exercises/06_move_semantics/move_semantics5.rs index b33a079e..267bdccc 100644 --- a/exercises/06_move_semantics/move_semantics5.rs +++ b/exercises/06_move_semantics/move_semantics5.rs @@ -6,14 +6,14 @@ // Execute `rustlings hint move_semantics5` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE #[test] fn main() { let mut x = 100; let y = &mut x; - *y += 100; let z = &mut x; + *y += 100; *z += 1000; assert_eq!(x, 1200); } diff --git a/exercises/06_move_semantics/move_semantics6.rs b/exercises/06_move_semantics/move_semantics6.rs index e8cf0b41..cace4ca6 100644 --- a/exercises/06_move_semantics/move_semantics6.rs +++ b/exercises/06_move_semantics/move_semantics6.rs @@ -5,24 +5,24 @@ // Execute `rustlings hint move_semantics6` or use the `hint` watch subcommand // for a hint. -// I AM DONE +// I AM NOT DONE fn main() { let data = "Rust is great!".to_string(); - get_char(&data); + get_char(data); - string_uppercase(data); + string_uppercase(&data); } // Should not take ownership -fn get_char(data: &String) -> char { +fn get_char(data: String) -> char { data.chars().last().unwrap() } // Should take ownership -fn string_uppercase(mut data: String) { - data = data.to_uppercase(); +fn string_uppercase(mut data: &String) { + data = &data.to_uppercase(); println!("{}", data); } diff --git a/exercises/07_structs/structs1.rs b/exercises/07_structs/structs1.rs index 119ee1cb..5fa5821c 100644 --- a/exercises/07_structs/structs1.rs +++ b/exercises/07_structs/structs1.rs @@ -5,15 +5,13 @@ // Execute `rustlings hint structs1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE struct ColorClassicStruct { - red: u8, - green: u8, - blue: u8, + // TODO: Something goes here } -struct ColorTupleStruct(u8, u8, u8); +struct ColorTupleStruct(/* TODO: Something goes here */); #[derive(Debug)] struct UnitLikeStruct; @@ -25,11 +23,7 @@ mod tests { #[test] fn classic_c_structs() { // TODO: Instantiate a classic c struct! - let green = ColorClassicStruct { - red: 0, - green: 255, - blue: 0, - }; + // let green = assert_eq!(green.red, 0); assert_eq!(green.green, 255); @@ -39,7 +33,7 @@ mod tests { #[test] fn tuple_structs() { // TODO: Instantiate a tuple struct! - let green = ColorTupleStruct(0, 255, 0); + // let green = assert_eq!(green.0, 0); assert_eq!(green.1, 255); @@ -49,7 +43,7 @@ mod tests { #[test] fn unit_structs() { // TODO: Instantiate a unit-like struct! - let unit_like_struct = UnitLikeStruct; + // let unit_like_struct = let message = format!("{:?}s are fun!", unit_like_struct); assert_eq!(message, "UnitLikeStructs are fun!"); diff --git a/exercises/07_structs/structs2.rs b/exercises/07_structs/structs2.rs index 4c3fbacc..328567f0 100644 --- a/exercises/07_structs/structs2.rs +++ b/exercises/07_structs/structs2.rs @@ -5,7 +5,7 @@ // Execute `rustlings hint structs2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[derive(Debug)] struct Order { @@ -38,11 +38,7 @@ mod tests { fn your_order() { let order_template = create_order_template(); // TODO: Create your own order using the update syntax and template above! - let your_order = Order { - name: String::from("Hacker in Rust"), - count: 1, - ..order_template - }; + // let your_order = assert_eq!(your_order.name, "Hacker in Rust"); assert_eq!(your_order.year, order_template.year); assert_eq!(your_order.made_by_phone, order_template.made_by_phone); diff --git a/exercises/07_structs/structs3.rs b/exercises/07_structs/structs3.rs index 839b9210..7cda5af1 100644 --- a/exercises/07_structs/structs3.rs +++ b/exercises/07_structs/structs3.rs @@ -7,7 +7,7 @@ // Execute `rustlings hint structs3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[derive(Debug)] struct Package { @@ -31,12 +31,12 @@ impl Package { } } - fn is_international(&self) -> bool { - !self.sender_country.eq_ignore_ascii_case(&self.recipient_country) + fn is_international(&self) -> ??? { + // Something goes here... } - fn get_fees(&self, cents_per_gram: u32) -> u64 { - (cents_per_gram * self.weight_in_grams).into() + fn get_fees(&self, cents_per_gram: u32) -> ??? { + // Something goes here... } } diff --git a/exercises/08_enums/enums1.rs b/exercises/08_enums/enums1.rs index 2a617746..25525b25 100644 --- a/exercises/08_enums/enums1.rs +++ b/exercises/08_enums/enums1.rs @@ -2,15 +2,11 @@ // // No hints this time! ;) -// I AM DONE +// I AM NOT DONE #[derive(Debug)] enum Message { // TODO: define a few types of messages as used below - Quit, - Echo, - Move, - ChangeColor, } fn main() { diff --git a/exercises/08_enums/enums2.rs b/exercises/08_enums/enums2.rs index ed3a5a6c..df93fe0f 100644 --- a/exercises/08_enums/enums2.rs +++ b/exercises/08_enums/enums2.rs @@ -3,15 +3,11 @@ // Execute `rustlings hint enums2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[derive(Debug)] enum Message { // TODO: define the different variants used below - Quit, - Echo(String), - Move { x: u32, y: u32 }, - ChangeColor(u8, u8, u8), } impl Message { diff --git a/exercises/08_enums/enums3.rs b/exercises/08_enums/enums3.rs index 5ade057f..92d18c46 100644 --- a/exercises/08_enums/enums3.rs +++ b/exercises/08_enums/enums3.rs @@ -5,14 +5,10 @@ // Execute `rustlings hint enums3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE enum Message { // TODO: implement the message variant types based on their usage below - Quit, - Echo(String), - Move(Point), - ChangeColor(u8, u8, u8), } struct Point { @@ -46,12 +42,6 @@ impl State { fn process(&mut self, message: Message) { // TODO: create a match expression to process the different message variants - match message { - Message::Quit => self.quit(), - Message::Echo(s) => self.echo(s), - Message::Move(p) => self.move_position(p), - Message::ChangeColor(red, green, blue) => self.change_color((red, green, blue)), - } // Remember: When passing a tuple as a function argument, you'll need extra parentheses: // fn function((t, u, p, l, e)) } diff --git a/exercises/09_strings/strings1.rs b/exercises/09_strings/strings1.rs index 547c4607..f50e1fa9 100644 --- a/exercises/09_strings/strings1.rs +++ b/exercises/09_strings/strings1.rs @@ -5,7 +5,7 @@ // Execute `rustlings hint strings1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { let answer = current_favorite_color(); @@ -13,5 +13,5 @@ fn main() { } fn current_favorite_color() -> String { - String::from("blue") + "blue" } diff --git a/exercises/09_strings/strings2.rs b/exercises/09_strings/strings2.rs index 7569192a..4d95d16a 100644 --- a/exercises/09_strings/strings2.rs +++ b/exercises/09_strings/strings2.rs @@ -5,11 +5,11 @@ // Execute `rustlings hint strings2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { let word = String::from("green"); // Try not changing this line :) - if is_a_color_word(&word) { + if is_a_color_word(word) { println!("That is a color word I know!"); } else { println!("That is not a color word I know."); diff --git a/exercises/09_strings/strings3.rs b/exercises/09_strings/strings3.rs index 102642fd..b29f9325 100644 --- a/exercises/09_strings/strings3.rs +++ b/exercises/09_strings/strings3.rs @@ -3,22 +3,21 @@ // Execute `rustlings hint strings3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn trim_me(input: &str) -> String { // TODO: Remove whitespace from both ends of a string! - input.trim().into() + ??? } fn compose_me(input: &str) -> String { // TODO: Add " world!" to the string! There's multiple ways to do this! - format!("{input} world!") - + ??? } fn replace_me(input: &str) -> String { // TODO: Replace "cars" in the string with "balloons"! - input.replace("cars", "balloons") + ??? } #[cfg(test)] diff --git a/exercises/09_strings/strings4.rs b/exercises/09_strings/strings4.rs index 3eb7c1ea..e8c54acc 100644 --- a/exercises/09_strings/strings4.rs +++ b/exercises/09_strings/strings4.rs @@ -7,7 +7,7 @@ // // No hints this time! -// I AM DONE +// I AM NOT DONE fn string_slice(arg: &str) { println!("{}", arg); @@ -17,14 +17,14 @@ fn string(arg: String) { } fn main() { - string_slice("blue"); - string("red".to_string()); - string(String::from("hi")); - string("rust is fun!".to_owned()); - string("nice weather".into()); - string(format!("Interpolation {}", "Station")); - string_slice(&String::from("abc")[0..1]); - string_slice(" hello there ".trim()); - string("Happy Monday!".to_string().replace("Mon", "Tues")); - string("mY sHiFt KeY iS sTiCkY".to_lowercase()); + ???("blue"); + ???("red".to_string()); + ???(String::from("hi")); + ???("rust is fun!".to_owned()); + ???("nice weather".into()); + ???(format!("Interpolation {}", "Station")); + ???(&String::from("abc")[0..1]); + ???(" hello there ".trim()); + ???("Happy Monday!".to_string().replace("Mon", "Tues")); + ???("mY sHiFt KeY iS sTiCkY".to_lowercase()); } diff --git a/exercises/10_modules/modules1.rs b/exercises/10_modules/modules1.rs index 7fc64c08..9eb5a48b 100644 --- a/exercises/10_modules/modules1.rs +++ b/exercises/10_modules/modules1.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint modules1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE mod sausage_factory { // Don't let anybody outside of this module see this! @@ -11,7 +11,7 @@ mod sausage_factory { String::from("Ginger") } - pub fn make_sausage() { + fn make_sausage() { get_secret_recipe(); println!("sausage!"); } diff --git a/exercises/10_modules/modules2.rs b/exercises/10_modules/modules2.rs index 8cb72578..04154543 100644 --- a/exercises/10_modules/modules2.rs +++ b/exercises/10_modules/modules2.rs @@ -7,12 +7,12 @@ // Execute `rustlings hint modules2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE mod delicious_snacks { // TODO: Fix these use statements - pub use self::fruits::PEAR as fruit; - pub use self::veggies::CUCUMBER as veggie; + use self::fruits::PEAR as ??? + use self::veggies::CUCUMBER as ??? mod fruits { pub const PEAR: &'static str = "Pear"; diff --git a/exercises/10_modules/modules3.rs b/exercises/10_modules/modules3.rs index 8673b488..f2bb0503 100644 --- a/exercises/10_modules/modules3.rs +++ b/exercises/10_modules/modules3.rs @@ -8,10 +8,10 @@ // Execute `rustlings hint modules3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE // TODO: Complete this use statement -use std::time::{SystemTime, UNIX_EPOCH}; +use ??? fn main() { match SystemTime::now().duration_since(UNIX_EPOCH) { diff --git a/exercises/11_hashmaps/hashmaps1.rs b/exercises/11_hashmaps/hashmaps1.rs index 90879b9f..80829eaa 100644 --- a/exercises/11_hashmaps/hashmaps1.rs +++ b/exercises/11_hashmaps/hashmaps1.rs @@ -11,15 +11,15 @@ // Execute `rustlings hint hashmaps1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::collections::HashMap; -fn fruit_basket() -> HashMap<&'static str, u32> { - let mut basket = HashMap::from([("apple", 3), ("orange", 4)]); +fn fruit_basket() -> HashMap { + let mut basket = // TODO: declare your hash map here. // Two bananas are already given for you :) - basket.insert("banana", 2); + basket.insert(String::from("banana"), 2); // TODO: Put more fruits in your basket here. diff --git a/exercises/11_hashmaps/hashmaps2.rs b/exercises/11_hashmaps/hashmaps2.rs index 5f3fc2bd..a5925690 100644 --- a/exercises/11_hashmaps/hashmaps2.rs +++ b/exercises/11_hashmaps/hashmaps2.rs @@ -14,7 +14,7 @@ // Execute `rustlings hint hashmaps2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::collections::HashMap; @@ -40,7 +40,6 @@ fn fruit_basket(basket: &mut HashMap) { // TODO: Insert new fruits if they are not already present in the // basket. Note that you are not allowed to put any type of fruit that's // already present! - basket.entry(fruit).or_insert(2); } } diff --git a/exercises/11_hashmaps/hashmaps3.rs b/exercises/11_hashmaps/hashmaps3.rs index 45dd150e..36544ee3 100644 --- a/exercises/11_hashmaps/hashmaps3.rs +++ b/exercises/11_hashmaps/hashmaps3.rs @@ -14,7 +14,7 @@ // Execute `rustlings hint hashmaps3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::collections::HashMap; @@ -39,13 +39,6 @@ fn build_scores_table(results: String) -> HashMap { // will be the number of goals conceded by team_2, and similarly // goals scored by team_2 will be the number of goals conceded by // team_1. - let team_1 = scores.entry(team_1_name).or_insert(Team { goals_scored: 0, goals_conceded: 0 }); - team_1.goals_scored += team_1_score; - team_1.goals_conceded += team_2_score; - - let team_2 = scores.entry(team_2_name).or_insert(Team { goals_scored: 0, goals_conceded: 0 }); - team_2.goals_scored += team_2_score; - team_2.goals_conceded += team_1_score; } scores } diff --git a/exercises/12_options/options1.rs b/exercises/12_options/options1.rs index ce7cbd3e..e131b48b 100644 --- a/exercises/12_options/options1.rs +++ b/exercises/12_options/options1.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint options1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE // This function returns how much icecream there is left in the fridge. // If it's before 10PM, there's 5 pieces left. At 10PM, someone eats them @@ -13,12 +13,7 @@ fn maybe_icecream(time_of_day: u16) -> Option { // value of 0 The Option output should gracefully handle cases where // time_of_day > 23. // TODO: Complete the function body - remember to return an Option! - if time_of_day < 22 { - Some(5) - } - else if time_of_day < 24 { - Some(0) - } else { None } + ??? } #[cfg(test)] @@ -38,7 +33,7 @@ mod tests { fn raw_value() { // TODO: Fix this test. How do you get at the value contained in the // Option? - let icecreams = maybe_icecream(12).unwrap_or_default(); + let icecreams = maybe_icecream(12); assert_eq!(icecreams, 5); } } diff --git a/exercises/12_options/options2.rs b/exercises/12_options/options2.rs index 82d9ca6b..4d998e7d 100644 --- a/exercises/12_options/options2.rs +++ b/exercises/12_options/options2.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint options2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[cfg(test)] mod tests { @@ -13,7 +13,7 @@ mod tests { let optional_target = Some(target); // TODO: Make this an if let statement whose value is "Some" type - if let Some(word) = optional_target { + word = optional_target { assert_eq!(word, target); } } @@ -32,7 +32,7 @@ mod tests { // TODO: make this a while let statement - remember that vector.pop also // adds another layer of Option. You can stack `Option`s into // while let and if let. - while let Some(Some(integer)) = optional_integers.pop() { + integer = optional_integers.pop() { assert_eq!(integer, cursor); cursor -= 1; } diff --git a/exercises/12_options/options3.rs b/exercises/12_options/options3.rs index f06460e3..23c15eab 100644 --- a/exercises/12_options/options3.rs +++ b/exercises/12_options/options3.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint options3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE struct Point { x: i32, @@ -14,7 +14,7 @@ fn main() { let y: Option = Some(Point { x: 100, y: 200 }); match y { - Some(ref p) => println!("Co-ordinates are {},{} ", p.x, p.y), + Some(p) => println!("Co-ordinates are {},{} ", p.x, p.y), _ => panic!("no match!"), } y; // Fix without deleting this line. diff --git a/exercises/13_error_handling/errors1.rs b/exercises/13_error_handling/errors1.rs index 1847534b..0ba59a57 100644 --- a/exercises/13_error_handling/errors1.rs +++ b/exercises/13_error_handling/errors1.rs @@ -9,14 +9,14 @@ // Execute `rustlings hint errors1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -pub fn generate_nametag_text(name: String) -> Result { +pub fn generate_nametag_text(name: String) -> Option { if name.is_empty() { // Empty names aren't allowed. - Err("`name` was empty; it must be nonempty.") + None } else { - Ok(format!("Hi! My name is {}", name)) + Some(format!("Hi! My name is {}", name)) } } diff --git a/exercises/13_error_handling/errors2.rs b/exercises/13_error_handling/errors2.rs index 4a720dd3..631fe67f 100644 --- a/exercises/13_error_handling/errors2.rs +++ b/exercises/13_error_handling/errors2.rs @@ -19,14 +19,14 @@ // Execute `rustlings hint errors2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::num::ParseIntError; pub fn total_cost(item_quantity: &str) -> Result { let processing_fee = 1; let cost_per_item = 5; - let qty = item_quantity.parse::()?; + let qty = item_quantity.parse::(); Ok(qty * cost_per_item + processing_fee) } diff --git a/exercises/13_error_handling/errors3.rs b/exercises/13_error_handling/errors3.rs index c0cc76ce..d42d3b17 100644 --- a/exercises/13_error_handling/errors3.rs +++ b/exercises/13_error_handling/errors3.rs @@ -7,11 +7,11 @@ // Execute `rustlings hint errors3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -use std::{error::Error, num::ParseIntError}; +use std::num::ParseIntError; -fn main() -> Result<(), Box>{ +fn main() { let mut tokens = 100; let pretend_user_input = "8"; @@ -23,8 +23,6 @@ fn main() -> Result<(), Box>{ tokens -= cost; println!("You now have {} tokens.", tokens); } - - Ok(()) } pub fn total_cost(item_quantity: &str) -> Result { diff --git a/exercises/13_error_handling/errors4.rs b/exercises/13_error_handling/errors4.rs index 973deba7..d6d6fcb6 100644 --- a/exercises/13_error_handling/errors4.rs +++ b/exercises/13_error_handling/errors4.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint errors4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[derive(PartialEq, Debug)] struct PositiveNonzeroInteger(u64); @@ -17,11 +17,7 @@ enum CreationError { impl PositiveNonzeroInteger { fn new(value: i64) -> Result { // Hmm... Why is this always returning an Ok value? - match value { - num if num < 0 => Err(CreationError::Negative), - 0 => Err(CreationError::Zero), - _ => Ok(PositiveNonzeroInteger(value as u64)), - } + Ok(PositiveNonzeroInteger(value as u64)) } } diff --git a/exercises/13_error_handling/errors5.rs b/exercises/13_error_handling/errors5.rs index 3c15ab89..92461a7e 100644 --- a/exercises/13_error_handling/errors5.rs +++ b/exercises/13_error_handling/errors5.rs @@ -22,15 +22,14 @@ // Execute `rustlings hint errors5` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::error; -use std::error::Error; use std::fmt; use std::num::ParseIntError; // TODO: update the return type of `main()` to make this compile. -fn main() -> Result<(), Box> { +fn main() -> Result<(), Box> { let pretend_user_input = "42"; let x: i64 = pretend_user_input.parse()?; println!("output={:?}", PositiveNonzeroInteger::new(x)?); diff --git a/exercises/13_error_handling/errors6.rs b/exercises/13_error_handling/errors6.rs index 1d3df617..aaf0948e 100644 --- a/exercises/13_error_handling/errors6.rs +++ b/exercises/13_error_handling/errors6.rs @@ -9,7 +9,7 @@ // Execute `rustlings hint errors6` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::num::ParseIntError; @@ -25,15 +25,13 @@ impl ParsePosNonzeroError { ParsePosNonzeroError::Creation(err) } // TODO: add another error conversion function here. - fn from_parseint(err: ParseIntError) -> ParsePosNonzeroError { - ParsePosNonzeroError::ParseInt(err) - } + // fn from_parseint... } fn parse_pos_nonzero(s: &str) -> Result { // TODO: change this to return an appropriate error instead of panicking // when `parse()` returns an error. - let x: i64 = s.parse().map_err(ParsePosNonzeroError::from_parseint)?; + let x: i64 = s.parse().unwrap(); PositiveNonzeroInteger::new(x).map_err(ParsePosNonzeroError::from_creation) } diff --git a/exercises/14_generics/generics1.rs b/exercises/14_generics/generics1.rs index c3730954..35c1d2fe 100644 --- a/exercises/14_generics/generics1.rs +++ b/exercises/14_generics/generics1.rs @@ -6,9 +6,9 @@ // Execute `rustlings hint generics1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { - let mut shopping_list: Vec<&str> = Vec::new(); + let mut shopping_list: Vec = Vec::new(); shopping_list.push("milk"); } diff --git a/exercises/14_generics/generics2.rs b/exercises/14_generics/generics2.rs index 18e5dfec..074cd938 100644 --- a/exercises/14_generics/generics2.rs +++ b/exercises/14_generics/generics2.rs @@ -6,14 +6,14 @@ // Execute `rustlings hint generics2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -struct Wrapper { - value: T, +struct Wrapper { + value: u32, } -impl Wrapper { - pub fn new(value: T) -> Self { +impl Wrapper { + pub fn new(value: u32) -> Self { Wrapper { value } } } diff --git a/exercises/15_traits/traits1.rs b/exercises/15_traits/traits1.rs index ba61721e..37dfcbfe 100644 --- a/exercises/15_traits/traits1.rs +++ b/exercises/15_traits/traits1.rs @@ -7,7 +7,7 @@ // Execute `rustlings hint traits1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE trait AppendBar { fn append_bar(self) -> Self; @@ -15,10 +15,6 @@ trait AppendBar { impl AppendBar for String { // TODO: Implement `AppendBar` for type `String`. - fn append_bar(mut self) -> Self { - self.push_str("Bar"); - self - } } fn main() { diff --git a/exercises/15_traits/traits2.rs b/exercises/15_traits/traits2.rs index 75301faa..3e35f8e1 100644 --- a/exercises/15_traits/traits2.rs +++ b/exercises/15_traits/traits2.rs @@ -8,19 +8,13 @@ // // Execute `rustlings hint traits2` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE trait AppendBar { fn append_bar(self) -> Self; } // TODO: Implement trait `AppendBar` for a vector of strings. -impl AppendBar for Vec { - fn append_bar(mut self) -> Self { - self.push("Bar".to_string()); - self - } -} #[cfg(test)] mod tests { diff --git a/exercises/15_traits/traits3.rs b/exercises/15_traits/traits3.rs index 0bc99085..4e2b06b0 100644 --- a/exercises/15_traits/traits3.rs +++ b/exercises/15_traits/traits3.rs @@ -8,12 +8,10 @@ // Execute `rustlings hint traits3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE pub trait Licensed { - fn licensing_info(&self) -> String { - String::from("Some information") - } + fn licensing_info(&self) -> String; } struct SomeSoftware { diff --git a/exercises/15_traits/traits4.rs b/exercises/15_traits/traits4.rs index 763ce693..4bda3e57 100644 --- a/exercises/15_traits/traits4.rs +++ b/exercises/15_traits/traits4.rs @@ -7,7 +7,7 @@ // Execute `rustlings hint traits4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE pub trait Licensed { fn licensing_info(&self) -> String { @@ -23,7 +23,7 @@ impl Licensed for SomeSoftware {} impl Licensed for OtherSoftware {} // YOU MAY ONLY CHANGE THE NEXT LINE -fn compare_license_types(software: impl Licensed, software_two: impl Licensed) -> bool { +fn compare_license_types(software: ??, software_two: ??) -> bool { software.licensing_info() == software_two.licensing_info() } diff --git a/exercises/15_traits/traits5.rs b/exercises/15_traits/traits5.rs index bcc93197..df183805 100644 --- a/exercises/15_traits/traits5.rs +++ b/exercises/15_traits/traits5.rs @@ -7,7 +7,7 @@ // Execute `rustlings hint traits5` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE pub trait SomeTrait { fn some_function(&self) -> bool { @@ -30,7 +30,7 @@ impl SomeTrait for OtherStruct {} impl OtherTrait for OtherStruct {} // YOU MAY ONLY CHANGE THE NEXT LINE -fn some_func(item: (impl SomeTrait + OtherTrait)) -> bool { +fn some_func(item: ??) -> bool { item.some_function() && item.other_function() } diff --git a/exercises/16_lifetimes/lifetimes1.rs b/exercises/16_lifetimes/lifetimes1.rs index bef85fde..87bde490 100644 --- a/exercises/16_lifetimes/lifetimes1.rs +++ b/exercises/16_lifetimes/lifetimes1.rs @@ -8,9 +8,9 @@ // Execute `rustlings hint lifetimes1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { +fn longest(x: &str, y: &str) -> &str { if x.len() > y.len() { x } else { diff --git a/exercises/16_lifetimes/lifetimes2.rs b/exercises/16_lifetimes/lifetimes2.rs index 6fb6bfbc..4f3d8c18 100644 --- a/exercises/16_lifetimes/lifetimes2.rs +++ b/exercises/16_lifetimes/lifetimes2.rs @@ -6,7 +6,7 @@ // Execute `rustlings hint lifetimes2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { if x.len() > y.len() { @@ -19,8 +19,8 @@ fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { fn main() { let string1 = String::from("long string is long"); let result; - let string2 = String::from("xyz"); { + let string2 = String::from("xyz"); result = longest(string1.as_str(), string2.as_str()); } println!("The longest string is '{}'", result); diff --git a/exercises/16_lifetimes/lifetimes3.rs b/exercises/16_lifetimes/lifetimes3.rs index 9db3162d..9c59f9c0 100644 --- a/exercises/16_lifetimes/lifetimes3.rs +++ b/exercises/16_lifetimes/lifetimes3.rs @@ -5,11 +5,11 @@ // Execute `rustlings hint lifetimes3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -struct Book<'a> { - author: &'a str, - title: &'a str, +struct Book { + author: &str, + title: &str, } fn main() { diff --git a/exercises/17_tests/tests1.rs b/exercises/17_tests/tests1.rs index 5c99a645..810277ac 100644 --- a/exercises/17_tests/tests1.rs +++ b/exercises/17_tests/tests1.rs @@ -10,12 +10,12 @@ // Execute `rustlings hint tests1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[cfg(test)] mod tests { #[test] fn you_can_assert() { - assert!(true); + assert!(); } } diff --git a/exercises/17_tests/tests2.rs b/exercises/17_tests/tests2.rs index a4c142b9..f8024e9f 100644 --- a/exercises/17_tests/tests2.rs +++ b/exercises/17_tests/tests2.rs @@ -6,12 +6,12 @@ // Execute `rustlings hint tests2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[cfg(test)] mod tests { #[test] fn you_can_assert_eq() { - assert_eq!(true, true); + assert_eq!(); } } diff --git a/exercises/17_tests/tests3.rs b/exercises/17_tests/tests3.rs index e9dd6a43..4013e384 100644 --- a/exercises/17_tests/tests3.rs +++ b/exercises/17_tests/tests3.rs @@ -7,7 +7,7 @@ // Execute `rustlings hint tests3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE pub fn is_even(num: i32) -> bool { num % 2 == 0 @@ -19,11 +19,11 @@ mod tests { #[test] fn is_true_when_even() { - assert!(is_even(4)); + assert!(); } #[test] fn is_false_when_odd() { - assert!(!is_even(5)); + assert!(); } } diff --git a/exercises/17_tests/tests4.rs b/exercises/17_tests/tests4.rs index ca596bf3..935d0db1 100644 --- a/exercises/17_tests/tests4.rs +++ b/exercises/17_tests/tests4.rs @@ -5,7 +5,7 @@ // Execute `rustlings hint tests4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE struct Rectangle { width: i32, @@ -30,20 +30,17 @@ mod tests { fn correct_width_and_height() { // This test should check if the rectangle is the size that we pass into its constructor let rect = Rectangle::new(10, 20); - assert_eq!(rect.width, 10); // check width - assert_eq!(rect.height, 20); // check height + assert_eq!(???, 10); // check width + assert_eq!(???, 20); // check height } #[test] - #[should_panic] fn negative_width() { // This test should check if program panics when we try to create rectangle with negative width let _rect = Rectangle::new(-10, 10); } #[test] - #[should_panic] - fn negative_height() { // This test should check if program panics when we try to create rectangle with negative height let _rect = Rectangle::new(10, -10); diff --git a/exercises/18_iterators/iterators1.rs b/exercises/18_iterators/iterators1.rs index 57773628..31076bb9 100644 --- a/exercises/18_iterators/iterators1.rs +++ b/exercises/18_iterators/iterators1.rs @@ -9,18 +9,18 @@ // Execute `rustlings hint iterators1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[test] fn main() { let my_fav_fruits = vec!["banana", "custard apple", "avocado", "peach", "raspberry"]; - let mut my_iterable_fav_fruits = my_fav_fruits.iter(); // TODO: Step 1 + let mut my_iterable_fav_fruits = ???; // TODO: Step 1 assert_eq!(my_iterable_fav_fruits.next(), Some(&"banana")); - assert_eq!(my_iterable_fav_fruits.next(), Some(&"custard apple")); // TODO: Step 2 + assert_eq!(my_iterable_fav_fruits.next(), ???); // TODO: Step 2 assert_eq!(my_iterable_fav_fruits.next(), Some(&"avocado")); - assert_eq!(my_iterable_fav_fruits.next(), Some(&"peach")); // TODO: Step 3 + assert_eq!(my_iterable_fav_fruits.next(), ???); // TODO: Step 3 assert_eq!(my_iterable_fav_fruits.next(), Some(&"raspberry")); - assert_eq!(my_iterable_fav_fruits.next(), None); // TODO: Step 4 + assert_eq!(my_iterable_fav_fruits.next(), ???); // TODO: Step 4 } diff --git a/exercises/18_iterators/iterators2.rs b/exercises/18_iterators/iterators2.rs index 789c087f..dda82a08 100644 --- a/exercises/18_iterators/iterators2.rs +++ b/exercises/18_iterators/iterators2.rs @@ -6,7 +6,7 @@ // Execute `rustlings hint iterators2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE // Step 1. // Complete the `capitalize_first` function. @@ -15,7 +15,7 @@ pub fn capitalize_first(input: &str) -> String { let mut c = input.chars(); match c.next() { None => String::new(), - Some(first) => first.to_uppercase().to_string() + c.as_str(), + Some(first) => ???, } } @@ -24,12 +24,7 @@ pub fn capitalize_first(input: &str) -> String { // Return a vector of strings. // ["hello", "world"] -> ["Hello", "World"] pub fn capitalize_words_vector(words: &[&str]) -> Vec { - let mut cap_words = vec![]; - for word in words { - cap_words.push(capitalize_first(word)); - } - - cap_words + vec![] } // Step 3. @@ -37,12 +32,7 @@ pub fn capitalize_words_vector(words: &[&str]) -> Vec { // Return a single string. // ["hello", " ", "world"] -> "Hello World" pub fn capitalize_words_string(words: &[&str]) -> String { - let mut cap_words = String::new(); - for word in words { - cap_words.push_str(&capitalize_first(word)); - } - - cap_words + String::new() } #[cfg(test)] diff --git a/exercises/18_iterators/iterators3.rs b/exercises/18_iterators/iterators3.rs index a87985a9..29fa23a3 100644 --- a/exercises/18_iterators/iterators3.rs +++ b/exercises/18_iterators/iterators3.rs @@ -9,7 +9,7 @@ // Execute `rustlings hint iterators3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[derive(Debug, PartialEq, Eq)] pub enum DivisionError { @@ -26,31 +26,23 @@ pub struct NotDivisibleError { // Calculate `a` divided by `b` if `a` is evenly divisible by `b`. // Otherwise, return a suitable error. pub fn divide(a: i32, b: i32) -> Result { - if b == 0 { - Err(DivisionError::DivideByZero) - } else if a % b == 0 { - Ok(a / b) - } else { - Err(DivisionError::NotDivisible(NotDivisibleError { dividend: a, divisor: b })) - } + todo!(); } // Complete the function and return a value of the correct type so the test // passes. // Desired output: Ok([1, 11, 1426, 3]) -fn result_with_list() -> Result, DivisionError> { +fn result_with_list() -> () { let numbers = vec![27, 297, 38502, 81]; - let division_results: Result, DivisionError> = numbers.into_iter().map(|n| divide(n, 27)).collect(); - division_results + let division_results = numbers.into_iter().map(|n| divide(n, 27)); } // Complete the function and return a value of the correct type so the test // passes. // Desired output: [Ok(1), Ok(11), Ok(1426), Ok(3)] -fn list_of_results() -> Vec> { +fn list_of_results() -> () { let numbers = vec![27, 297, 38502, 81]; - let division_results: Vec<_> = numbers.into_iter().map(|n| divide(n, 27)).collect(); - division_results + let division_results = numbers.into_iter().map(|n| divide(n, 27)); } #[cfg(test)] diff --git a/exercises/18_iterators/iterators4.rs b/exercises/18_iterators/iterators4.rs index 340b56b9..79e1692b 100644 --- a/exercises/18_iterators/iterators4.rs +++ b/exercises/18_iterators/iterators4.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint iterators4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE pub fn factorial(num: u64) -> u64 { // Complete this function to return the factorial of num @@ -15,7 +15,6 @@ pub fn factorial(num: u64) -> u64 { // For an extra challenge, don't use: // - recursion // Execute `rustlings hint iterators4` for hints. - (2..=num).product() } #[cfg(test)] diff --git a/exercises/18_iterators/iterators5.rs b/exercises/18_iterators/iterators5.rs index 48925dec..a062ee4c 100644 --- a/exercises/18_iterators/iterators5.rs +++ b/exercises/18_iterators/iterators5.rs @@ -11,7 +11,7 @@ // Execute `rustlings hint iterators5` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::collections::HashMap; @@ -35,7 +35,7 @@ fn count_for(map: &HashMap, value: Progress) -> usize { fn count_iterator(map: &HashMap, value: Progress) -> usize { // map is a hashmap with String keys and Progress values. // map = { "variables1": Complete, "from_str": None, ... } - map.iter().filter(|(_, val)| *val == &value).count() + todo!(); } fn count_collection_for(collection: &[HashMap], value: Progress) -> usize { @@ -54,7 +54,7 @@ fn count_collection_iterator(collection: &[HashMap], value: Pr // collection is a slice of hashmaps. // collection = [{ "variables1": Complete, "from_str": None, ... }, // { "variables2": Complete, ... }, ... ] - collection.iter().map(|map| count_iterator(map, value)).sum() + todo!(); } #[cfg(test)] diff --git a/exercises/19_smart_pointers/arc1.rs b/exercises/19_smart_pointers/arc1.rs index 9ba79827..3526ddcb 100644 --- a/exercises/19_smart_pointers/arc1.rs +++ b/exercises/19_smart_pointers/arc1.rs @@ -21,7 +21,7 @@ // // Execute `rustlings hint arc1` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE #![forbid(unused_imports)] // Do not change this, (or the next) line. use std::sync::Arc; @@ -29,11 +29,11 @@ use std::thread; fn main() { let numbers: Vec<_> = (0..100u32).collect(); - let shared_numbers = Arc::new(numbers);// TODO + let shared_numbers = // TODO let mut joinhandles = Vec::new(); for offset in 0..8 { - let child_numbers = Arc::clone(&shared_numbers);// TODO + let child_numbers = // TODO joinhandles.push(thread::spawn(move || { let sum: u32 = child_numbers.iter().filter(|&&n| n % 8 == offset).sum(); println!("Sum of offset {} is {}", offset, sum); diff --git a/exercises/19_smart_pointers/box1.rs b/exercises/19_smart_pointers/box1.rs index 390101c4..513e7daa 100644 --- a/exercises/19_smart_pointers/box1.rs +++ b/exercises/19_smart_pointers/box1.rs @@ -18,11 +18,11 @@ // // Execute `rustlings hint box1` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE #[derive(PartialEq, Debug)] pub enum List { - Cons(i32, Box), + Cons(i32, List), Nil, } @@ -35,11 +35,11 @@ fn main() { } pub fn create_empty_list() -> List { - List::Nil + todo!() } pub fn create_non_empty_list() -> List { - List::Cons(0, Box::new(List::Nil)) + todo!() } #[cfg(test)] diff --git a/exercises/19_smart_pointers/cow1.rs b/exercises/19_smart_pointers/cow1.rs index 8c9bac1a..fcd3e0bb 100644 --- a/exercises/19_smart_pointers/cow1.rs +++ b/exercises/19_smart_pointers/cow1.rs @@ -12,7 +12,7 @@ // // Execute `rustlings hint cow1` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE use std::borrow::Cow; @@ -48,8 +48,7 @@ mod tests { let slice = [0, 1, 2]; let mut input = Cow::from(&slice[..]); match abs_all(&mut input) { - Cow::Borrowed(_) => Ok(()), - _ => Err("Expected borrowed value"), + // TODO } } @@ -61,8 +60,7 @@ mod tests { let slice = vec![0, 1, 2]; let mut input = Cow::from(slice); match abs_all(&mut input) { - Cow::Owned(_) => Ok(()), - _ => Err("Expected owned value"), + // TODO } } @@ -74,8 +72,7 @@ mod tests { let slice = vec![-1, 0, 1]; let mut input = Cow::from(slice); match abs_all(&mut input) { - Cow::Owned(_) => Ok(()), - _ => Err("Expected owned value"), + // TODO } } } diff --git a/exercises/19_smart_pointers/rc1.rs b/exercises/19_smart_pointers/rc1.rs index 35384e05..1b903469 100644 --- a/exercises/19_smart_pointers/rc1.rs +++ b/exercises/19_smart_pointers/rc1.rs @@ -10,7 +10,7 @@ // // Execute `rustlings hint rc1` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE use std::rc::Rc; @@ -61,17 +61,17 @@ fn main() { jupiter.details(); // TODO - let saturn = Planet::Saturn(Rc::clone(&sun)); + let saturn = Planet::Saturn(Rc::new(Sun {})); println!("reference count = {}", Rc::strong_count(&sun)); // 7 references saturn.details(); // TODO - let uranus = Planet::Uranus(Rc::clone(&sun)); + let uranus = Planet::Uranus(Rc::new(Sun {})); println!("reference count = {}", Rc::strong_count(&sun)); // 8 references uranus.details(); // TODO - let neptune = Planet::Neptune(Rc::clone(&sun)); + let neptune = Planet::Neptune(Rc::new(Sun {})); println!("reference count = {}", Rc::strong_count(&sun)); // 9 references neptune.details(); @@ -93,15 +93,12 @@ fn main() { println!("reference count = {}", Rc::strong_count(&sun)); // 4 references // TODO - drop(earth); println!("reference count = {}", Rc::strong_count(&sun)); // 3 references // TODO - drop(venus); println!("reference count = {}", Rc::strong_count(&sun)); // 2 references // TODO - drop(mercury); println!("reference count = {}", Rc::strong_count(&sun)); // 1 reference assert_eq!(Rc::strong_count(&sun), 1); diff --git a/exercises/20_threads/threads1.rs b/exercises/20_threads/threads1.rs index 11b62a55..80b6def3 100644 --- a/exercises/20_threads/threads1.rs +++ b/exercises/20_threads/threads1.rs @@ -8,7 +8,7 @@ // Execute `rustlings hint threads1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::thread; use std::time::{Duration, Instant}; @@ -27,7 +27,6 @@ fn main() { let mut results: Vec = vec![]; for handle in handles { // TODO: a struct is returned from thread::spawn, can you use it? - results.push(handle.join().unwrap()); } if results.len() != 10 { diff --git a/exercises/20_threads/threads2.rs b/exercises/20_threads/threads2.rs index 8d546db0..62dad80d 100644 --- a/exercises/20_threads/threads2.rs +++ b/exercises/20_threads/threads2.rs @@ -7,9 +7,9 @@ // Execute `rustlings hint threads2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE -use std::sync::{Arc, Mutex}; +use std::sync::Arc; use std::thread; use std::time::Duration; @@ -18,14 +18,14 @@ struct JobStatus { } fn main() { - let status = Arc::new(Mutex::new(JobStatus { jobs_completed: 0 })); + let status = Arc::new(JobStatus { jobs_completed: 0 }); let mut handles = vec![]; for _ in 0..10 { let status_shared = Arc::clone(&status); let handle = thread::spawn(move || { thread::sleep(Duration::from_millis(250)); // TODO: You must take an action before you update a shared value - status_shared.lock().unwrap().jobs_completed += 1; + status_shared.jobs_completed += 1; }); handles.push(handle); } @@ -34,6 +34,6 @@ fn main() { // TODO: Print the value of the JobStatus.jobs_completed. Did you notice // anything interesting in the output? Do you have to 'join' on all the // handles? - println!("jobs completed {}", status.lock().unwrap().jobs_completed); + println!("jobs completed {}", ???); } } diff --git a/exercises/20_threads/threads3.rs b/exercises/20_threads/threads3.rs index 67482224..91006bbc 100644 --- a/exercises/20_threads/threads3.rs +++ b/exercises/20_threads/threads3.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint threads3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::sync::mpsc; use std::sync::Arc; @@ -31,11 +31,10 @@ fn send_tx(q: Queue, tx: mpsc::Sender) -> () { let qc1 = Arc::clone(&qc); let qc2 = Arc::clone(&qc); - let tx1 = tx.clone(); thread::spawn(move || { for val in &qc1.first_half { println!("sending {:?}", val); - tx1.send(*val).unwrap(); + tx.send(*val).unwrap(); thread::sleep(Duration::from_secs(1)); } }); diff --git a/exercises/21_macros/macros1.rs b/exercises/21_macros/macros1.rs index 88fd8608..678de6ee 100644 --- a/exercises/21_macros/macros1.rs +++ b/exercises/21_macros/macros1.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint macros1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE macro_rules! my_macro { () => { @@ -12,5 +12,5 @@ macro_rules! my_macro { } fn main() { - my_macro!(); + my_macro(); } diff --git a/exercises/21_macros/macros2.rs b/exercises/21_macros/macros2.rs index 2d2b0956..788fc16a 100644 --- a/exercises/21_macros/macros2.rs +++ b/exercises/21_macros/macros2.rs @@ -3,15 +3,14 @@ // Execute `rustlings hint macros2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE + +fn main() { + my_macro!(); +} macro_rules! my_macro { () => { println!("Check out my macro!"); }; } - -fn main() { - my_macro!(); -} - diff --git a/exercises/21_macros/macros3.rs b/exercises/21_macros/macros3.rs index 40417a81..b795c149 100644 --- a/exercises/21_macros/macros3.rs +++ b/exercises/21_macros/macros3.rs @@ -5,10 +5,9 @@ // Execute `rustlings hint macros3` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE mod macros { - #[macro_export] macro_rules! my_macro { () => { println!("Check out my macro!"); diff --git a/exercises/21_macros/macros4.rs b/exercises/21_macros/macros4.rs index a2ea2b9b..71b45a09 100644 --- a/exercises/21_macros/macros4.rs +++ b/exercises/21_macros/macros4.rs @@ -3,13 +3,13 @@ // Execute `rustlings hint macros4` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE #[rustfmt::skip] macro_rules! my_macro { () => { println!("Check out my macro!"); - }; + } ($val:expr) => { println!("Look at this other macro: {}", $val); } diff --git a/exercises/22_clippy/Cargo.lock b/exercises/22_clippy/Cargo.lock deleted file mode 100644 index d0fc406e..00000000 --- a/exercises/22_clippy/Cargo.lock +++ /dev/null @@ -1,7 +0,0 @@ -# This file is automatically @generated by Cargo. -# It is not intended for manual editing. -version = 3 - -[[package]] -name = "clippy3" -version = "0.0.1" diff --git a/exercises/22_clippy/Cargo.toml b/exercises/22_clippy/Cargo.toml deleted file mode 100644 index 44dc91f8..00000000 --- a/exercises/22_clippy/Cargo.toml +++ /dev/null @@ -1,7 +0,0 @@ -[package] -name = "clippy3" -version = "0.0.1" -edition = "2021" -[[bin]] -name = "clippy3" -path = "clippy3.rs" \ No newline at end of file diff --git a/exercises/22_clippy/clippy1.rs b/exercises/22_clippy/clippy1.rs index 1d6ae711..e0c6ce7c4 100644 --- a/exercises/22_clippy/clippy1.rs +++ b/exercises/22_clippy/clippy1.rs @@ -9,12 +9,12 @@ // Execute `rustlings hint clippy1` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE use std::f32; fn main() { - let pi = f32::consts::PI; + let pi = 3.14f32; let radius = 5.00f32; let area = pi * f32::powi(radius, 2); diff --git a/exercises/22_clippy/clippy2.rs b/exercises/22_clippy/clippy2.rs index 0c56c373..9b87a0b7 100644 --- a/exercises/22_clippy/clippy2.rs +++ b/exercises/22_clippy/clippy2.rs @@ -3,12 +3,12 @@ // Execute `rustlings hint clippy2` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn main() { let mut res = 42; let option = Some(12); - if let Some(x) = option { + for x in option { res += x; } println!("{}", res); diff --git a/exercises/22_clippy/clippy3.rs b/exercises/22_clippy/clippy3.rs index 4fef9035..5a95f5b8 100644 --- a/exercises/22_clippy/clippy3.rs +++ b/exercises/22_clippy/clippy3.rs @@ -3,29 +3,28 @@ // Here's a couple more easy Clippy fixes, so you can see its utility. // No hints. -// I AM DONE +// I AM NOT DONE #[allow(unused_variables, unused_assignments)] fn main() { let my_option: Option<()> = None; if my_option.is_none() { - // my_option.unwrap(); + my_option.unwrap(); } let my_arr = &[ - -1, -2, -3, + -1, -2, -3 -4, -5, -6 ]; println!("My array! Here it is: {:?}", my_arr); - let mut my_empty_vec = vec![1, 2, 3, 4, 5]; - my_empty_vec.clear(); + let my_empty_vec = vec![1, 2, 3, 4, 5].resize(0, 5); println!("This Vec is empty, see? {:?}", my_empty_vec); let mut value_a = 45; let mut value_b = 66; // Let's swap these two! - std::mem::swap(&mut value_a, &mut value_b); - + value_a = value_b; + value_b = value_a; println!("value a: {}; value b: {}", value_a, value_b); } diff --git a/exercises/23_conversions/as_ref_mut.rs b/exercises/23_conversions/as_ref_mut.rs index 5404a787..2ba9e3f0 100644 --- a/exercises/23_conversions/as_ref_mut.rs +++ b/exercises/23_conversions/as_ref_mut.rs @@ -7,25 +7,25 @@ // Execute `rustlings hint as_ref_mut` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE // Obtain the number of bytes (not characters) in the given argument. // TODO: Add the AsRef trait appropriately as a trait bound. -fn byte_counter>(arg: T) -> usize { +fn byte_counter(arg: T) -> usize { arg.as_ref().as_bytes().len() } // Obtain the number of characters (not bytes) in the given argument. // TODO: Add the AsRef trait appropriately as a trait bound. -fn char_counter>(arg: T) -> usize { +fn char_counter(arg: T) -> usize { arg.as_ref().chars().count() } // Squares a number using as_mut(). // TODO: Add the appropriate trait bound. -fn num_sq>(arg: &mut T) { +fn num_sq(arg: &mut T) { // TODO: Implement the function body. - *arg.as_mut() *= *arg.as_mut() + ??? } #[cfg(test)] diff --git a/exercises/23_conversions/from_into.rs b/exercises/23_conversions/from_into.rs index 5a6c73a5..60911f3e 100644 --- a/exercises/23_conversions/from_into.rs +++ b/exercises/23_conversions/from_into.rs @@ -40,31 +40,10 @@ impl Default for Person { // If while parsing the age, something goes wrong, then return the default of // Person Otherwise, then return an instantiated Person object with the results -// I AM DONE +// I AM NOT DONE impl From<&str> for Person { fn from(s: &str) -> Person { - let mut split = s.split(','); - - let name; - match split.next() { - Some(n) if !n.is_empty() => name = n, - _ => return Person::default() - } - - let mut age ; - match split.next() { - Some(a) => match a.parse::() { - Ok(ag) => age = ag, - Err(_) => return Person::default(), - }, - None => return Person::default(), - } - - Person { - name: name.into(), - age - } } } diff --git a/exercises/23_conversions/from_str.rs b/exercises/23_conversions/from_str.rs index 7fe8a914..34472c32 100644 --- a/exercises/23_conversions/from_str.rs +++ b/exercises/23_conversions/from_str.rs @@ -31,7 +31,7 @@ enum ParsePersonError { ParseInt(ParseIntError), } -// I AM DONE +// I AM NOT DONE // Steps: // 1. If the length of the provided string is 0, an error should be returned @@ -52,26 +52,6 @@ enum ParsePersonError { impl FromStr for Person { type Err = ParsePersonError; fn from_str(s: &str) -> Result { - if s.is_empty() { return Err(ParsePersonError::Empty) } - - let mut split = s.split(','); - if split.clone().count() != 2 { return Err(ParsePersonError::BadLen) } - - let name=split.next().unwrap(); - if name.is_empty() { - return Err(ParsePersonError::NoName) - }; - - let mut age ; - match split.next().unwrap().parse::() { - Ok(a) => age = a, - Err(e) => return Err(ParsePersonError::ParseInt(e)), - }; - - Ok(Person { - name: name.into(), - age - }) } } diff --git a/exercises/23_conversions/try_from_into.rs b/exercises/23_conversions/try_from_into.rs index d1bbfe21..32d6ef39 100644 --- a/exercises/23_conversions/try_from_into.rs +++ b/exercises/23_conversions/try_from_into.rs @@ -27,7 +27,7 @@ enum IntoColorError { IntConversion, } -// I AM DONE +// I AM NOT DONE // Your task is to complete this implementation and return an Ok result of inner // type Color. You need to create an implementation for a tuple of three @@ -41,11 +41,6 @@ enum IntoColorError { impl TryFrom<(i16, i16, i16)> for Color { type Error = IntoColorError; fn try_from(tuple: (i16, i16, i16)) -> Result { - Ok(Color { - red: u8::try_from(tuple.0).or(Err(IntoColorError::IntConversion))?, - green: u8::try_from(tuple.1).or(Err(IntoColorError::IntConversion))?, - blue: u8::try_from(tuple.2).or(Err(IntoColorError::IntConversion))?, - }) } } @@ -53,7 +48,6 @@ impl TryFrom<(i16, i16, i16)> for Color { impl TryFrom<[i16; 3]> for Color { type Error = IntoColorError; fn try_from(arr: [i16; 3]) -> Result { - Self::try_from((arr[0], arr[1], arr[2])) } } @@ -61,8 +55,6 @@ impl TryFrom<[i16; 3]> for Color { impl TryFrom<&[i16]> for Color { type Error = IntoColorError; fn try_from(slice: &[i16]) -> Result { - if slice.len() != 3 { return Err(IntoColorError::BadLen); } - Self::try_from((slice[0], slice[1], slice[2])) } } diff --git a/exercises/23_conversions/using_as.rs b/exercises/23_conversions/using_as.rs index 86d324f3..414cef3a 100644 --- a/exercises/23_conversions/using_as.rs +++ b/exercises/23_conversions/using_as.rs @@ -10,11 +10,11 @@ // Execute `rustlings hint using_as` or use the `hint` watch subcommand for a // hint. -// I AM DONE +// I AM NOT DONE fn average(values: &[f64]) -> f64 { let total = values.iter().sum::(); - total / values.len() as f64 + total / values.len() } fn main() { diff --git a/exercises/quiz1.rs b/exercises/quiz1.rs index 7f9c81ec..4ee5ada7 100644 --- a/exercises/quiz1.rs +++ b/exercises/quiz1.rs @@ -13,11 +13,10 @@ // // No hints this time ;) -// I AM DONE +// I AM NOT DONE -fn calculate_price_of_apples(qty: u16) -> u32 { - if qty > 40 { qty.into() } else { (qty * 2).into() } -} +// Put your function here! +// fn calculate_price_of_apples { // Don't modify this function! #[test] diff --git a/exercises/quiz2.rs b/exercises/quiz2.rs index 508c56c6..29925caf 100644 --- a/exercises/quiz2.rs +++ b/exercises/quiz2.rs @@ -20,7 +20,7 @@ // // No hints this time! -// I AM DONE +// I AM NOT DONE pub enum Command { Uppercase, @@ -32,22 +32,11 @@ mod my_module { use super::Command; // TODO: Complete the function signature! - pub fn transformer(input: Vec<(String, Command)>) -> Vec { + pub fn transformer(input: ???) -> ??? { // TODO: Complete the output declaration! - let mut output = vec![]; + let mut output: ??? = vec![]; for (string, command) in input.iter() { // TODO: Complete the function body. You can do it! - output.push(match command { - Command::Uppercase =>string.to_uppercase(), - Command::Trim =>string.trim().into(), - Command::Append(num) => { - let mut string = String::from(string); - for i in 0..*num { - string.push_str("bar"); - }; - string - }, - }) } output } @@ -56,7 +45,7 @@ mod my_module { #[cfg(test)] mod tests { // TODO: What do we need to import to have `transformer` in scope? - use super::my_module::transformer; + use ???; use super::Command; #[test] diff --git a/exercises/quiz3.rs b/exercises/quiz3.rs index 845d6a18..3b01d313 100644 --- a/exercises/quiz3.rs +++ b/exercises/quiz3.rs @@ -16,17 +16,15 @@ // // Execute `rustlings hint quiz3` or use the `hint` watch subcommand for a hint. -// I AM DONE +// I AM NOT DONE -use std::fmt::Display; - -pub struct ReportCard { - pub grade: T, +pub struct ReportCard { + pub grade: f32, pub student_name: String, pub student_age: u8, } -impl ReportCard { +impl ReportCard { pub fn print(&self) -> String { format!("{} ({}) - achieved a grade of {}", &self.student_name, &self.student_age, &self.grade) @@ -54,7 +52,7 @@ mod tests { fn generate_alphabetic_report_card() { // TODO: Make sure to change the grade here after you finish the exercise. let report_card = ReportCard { - grade: "A+", + grade: 2.1, student_name: "Gary Plotter".to_string(), student_age: 11, }; diff --git a/rustlings b/rustlings deleted file mode 160000 index 9a743f80..00000000 --- a/rustlings +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 9a743f80c57cc6bf27819589a8ddb5a5579ab1a4