This commit is contained in:
Shreyas Vaderiyattil 2023-02-08 11:47:05 -05:00
parent 0ea42f60bd
commit 0450a8c5b3
25 changed files with 49 additions and 49 deletions

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@ -1,8 +1,10 @@
// functions1.rs // functions1.rs
// Execute `rustlings hint functions1` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint functions1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn call_me(){
}
fn main() { fn main() {
call_me(); call_me();
} }

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@ -1,13 +1,12 @@
// functions2.rs // functions2.rs
// Execute `rustlings hint functions2` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint functions2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
call_me(3); call_me(3);
} }
fn call_me(num:) { fn call_me(num: i32) {
for i in 0..num { for i in 0..num {
println!("Ring! Call number {}", i + 1); println!("Ring! Call number {}", i + 1);
} }

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@ -1,10 +1,9 @@
// functions3.rs // functions3.rs
// Execute `rustlings hint functions3` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
call_me(); call_me(3);
} }
fn call_me(num: u32) { fn call_me(num: u32) {

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@ -7,14 +7,13 @@
// in the signatures for now. If anything, this is a good way to peek ahead // in the signatures for now. If anything, this is a good way to peek ahead
// to future exercises!) // to future exercises!)
// I AM NOT DONE
fn main() { fn main() {
let original_price = 51; let original_price = 51;
println!("Your sale price is {}", sale_price(original_price)); println!("Your sale price is {}", sale_price(original_price));
} }
fn sale_price(price: i32) -> { fn sale_price(price: i32) -> i32 {
if is_even(price) { if is_even(price) {
price - 10 price - 10
} else { } else {

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@ -1,7 +1,6 @@
// functions5.rs // functions5.rs
// Execute `rustlings hint functions5` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint functions5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let answer = square(3); let answer = square(3);
@ -9,5 +8,5 @@ fn main() {
} }
fn square(num: i32) -> i32 { fn square(num: i32) -> i32 {
num * num; return num * num;
} }

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@ -1,13 +1,17 @@
// if1.rs // if1.rs
// Execute `rustlings hint if1` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint if1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
pub fn bigger(a: i32, b: i32) -> i32 { pub fn bigger(a: i32, b: i32) -> i32 {
// Complete this function to return the bigger number! // Complete this function to return the bigger number!
// Do not use: // Do not use:
// - another function call // - another function call
// - additional variables // - additional variables
if a > b {
return a;
} else {
return b;
}
} }
// Don't mind this for now :) // Don't mind this for now :)

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@ -4,13 +4,16 @@
// Step 2: Get the bar_for_fuzz and default_to_baz tests passing! // Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
// Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
pub fn foo_if_fizz(fizzish: &str) -> &str { pub fn foo_if_fizz(fizzish: &str) -> &str {
if fizzish == "fizz" { if fizzish == "fizz" {
"foo" return "foo";
} else {
1 } else if fizzish == "fuzz" {
return "bar";
}
else {
return "baz";
} }
} }

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@ -9,7 +9,7 @@
// when you change one of the lines below! Try adding a `println!` line, or try changing // when you change one of the lines below! Try adding a `println!` line, or try changing
// what it outputs in your terminal. Try removing a semicolon and see what happens! // what it outputs in your terminal. Try removing a semicolon and see what happens!
// I AM NOT DONE
fn main() { fn main() {
println!("Hello and"); println!("Hello and");
@ -27,4 +27,5 @@ fn main() {
println!(); println!();
println!("The source for this exercise is in `exercises/intro/intro1.rs`. Have a look!"); println!("The source for this exercise is in `exercises/intro/intro1.rs`. Have a look!");
println!("Going forward, the source of the exercises will always be in the success/failure output."); println!("Going forward, the source of the exercises will always be in the success/failure output.");
println!("Hello");
} }

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@ -2,8 +2,8 @@
// Make the code print a greeting to the world. // Make the code print a greeting to the world.
// Execute `rustlings hint intro2` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
println!("Hello {}!"); println!("Hello {}!", 30);
} }

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@ -2,7 +2,6 @@
// Fill in the rest of the line that has code missing! // Fill in the rest of the line that has code missing!
// No hints, there's no tricks, just get used to typing these :) // No hints, there's no tricks, just get used to typing these :)
// I AM NOT DONE
fn main() { fn main() {
// Booleans (`bool`) // Booleans (`bool`)
@ -12,7 +11,7 @@ fn main() {
println!("Good morning!"); println!("Good morning!");
} }
let // Finish the rest of this line like the example! Or make it be false! let is_evening: bool = false; // Finish the rest of this line like the example! Or make it be false!
if is_evening { if is_evening {
println!("Good evening!"); println!("Good evening!");
} }

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@ -2,7 +2,6 @@
// Fill in the rest of the line that has code missing! // Fill in the rest of the line that has code missing!
// No hints, there's no tricks, just get used to typing these :) // No hints, there's no tricks, just get used to typing these :)
// I AM NOT DONE
fn main() { fn main() {
// Characters (`char`) // Characters (`char`)
@ -18,7 +17,7 @@ fn main() {
println!("Neither alphabetic nor numeric!"); println!("Neither alphabetic nor numeric!");
} }
let // Finish this line like the example! What's your favorite character? let your_character: char = 'S';// Finish this line like the example! What's your favorite character?
// Try a letter, try a number, try a special character, try a character // Try a letter, try a number, try a special character, try a character
// from a different language than your own, try an emoji! // from a different language than your own, try an emoji!
if your_character.is_alphabetic() { if your_character.is_alphabetic() {

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@ -2,10 +2,10 @@
// Create an array with at least 100 elements in it where the ??? is. // Create an array with at least 100 elements in it where the ??? is.
// Execute `rustlings hint primitive_types3` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint primitive_types3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let a = ???
let a = [0; 100];
if a.len() >= 100 { if a.len() >= 100 {
println!("Wow, that's a big array!"); println!("Wow, that's a big array!");

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@ -2,13 +2,12 @@
// Get a slice out of Array a where the ??? is so that the test passes. // Get a slice out of Array a where the ??? is so that the test passes.
// Execute `rustlings hint primitive_types4` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint primitive_types4` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
#[test] #[test]
fn slice_out_of_array() { fn slice_out_of_array() {
let a = [1, 2, 3, 4, 5]; let a = [1, 2, 3, 4, 5];
let nice_slice = ??? let nice_slice = &a[1..4];
assert_eq!([2, 3, 4], nice_slice) assert_eq!([2, 3, 4], nice_slice)
} }

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@ -2,11 +2,11 @@
// Destructure the `cat` tuple so that the println will work. // Destructure the `cat` tuple so that the println will work.
// Execute `rustlings hint primitive_types5` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint primitive_types5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let cat = ("Furry McFurson", 3.5); let cat = ("Furry McFurson", 3.5);
let /* your pattern here */ = cat; let name = cat.0;
let age: f64 = cat.1;
println!("{} is {} years old.", name, age); println!("{} is {} years old.", name, age);
} }

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@ -3,13 +3,12 @@
// You can put the expression for the second element where ??? is so that the test passes. // You can put the expression for the second element where ??? is so that the test passes.
// Execute `rustlings hint primitive_types6` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint primitive_types6` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
#[test] #[test]
fn indexing_tuple() { fn indexing_tuple() {
let numbers = (1, 2, 3); let numbers = (1, 2, 3);
// Replace below ??? with the tuple indexing syntax. // Replace below ??? with the tuple indexing syntax.
let second = ???; let second = numbers.1;
assert_eq!(2, second, assert_eq!(2, second,
"This is not the 2nd number in the tuple!") "This is not the 2nd number in the tuple!")

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@ -10,11 +10,16 @@
// Write a function that calculates the price of an order of apples given // Write a function that calculates the price of an order of apples given
// the quantity bought. No hints this time! // the quantity bought. No hints this time!
// I AM NOT DONE
// Put your function here! // Put your function here!
// fn calculate_price_of_apples { fn calculate_price_of_apples(quantity: i32) -> i32 {
if quantity > 40 {
return 1 * quantity;
} else {
return 2 * quantity;
}
}
// Don't modify this function! // Don't modify this function!
#[test] #[test]
fn verify_test() { fn verify_test() {

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@ -2,9 +2,8 @@
// Make me compile! // Make me compile!
// Execute `rustlings hint variables1` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint variables1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
x = 5; let x: i32 = 5;
println!("x has the value {}", x); println!("x has the value {}", x);
} }

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@ -1,10 +1,9 @@
// variables2.rs // variables2.rs
// Execute `rustlings hint variables2` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint variables2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let x; let x: i32 = 0;
if x == 10 { if x == 10 {
println!("x is ten!"); println!("x is ten!");
} else { } else {

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@ -1,9 +1,8 @@
// variables3.rs // variables3.rs
// Execute `rustlings hint variables3` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint variables3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let x: i32; let x: i32 = 0;
println!("Number {}", x); println!("Number {}", x);
} }

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@ -1,10 +1,9 @@
// variables4.rs // variables4.rs
// Execute `rustlings hint variables4` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint variables4` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let x = 3; let mut x = 3;
println!("Number {}", x); println!("Number {}", x);
x = 5; // don't change this line x = 5; // don't change this line
println!("Number {}", x); println!("Number {}", x);

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@ -1,11 +1,10 @@
// variables5.rs // variables5.rs
// Execute `rustlings hint variables5` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint variables5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() { fn main() {
let number = "T-H-R-E-E"; // don't change this line let number = "T-H-R-E-E"; // don't change this line
println!("Spell a Number : {}", number); println!("Spell a Number : {}", number);
number = 3; // don't rename this variable let number = 3; // don't rename this variable
println!("Number plus two is : {}", number + 2); println!("Number plus two is : {}", number + 2);
} }

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@ -1,9 +1,8 @@
// variables6.rs // variables6.rs
// Execute `rustlings hint variables6` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint variables6` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
const NUMBER = 3; const NUMBER: i32 = 3;
fn main() { fn main() {
println!("Number {}", NUMBER); println!("Number {}", NUMBER);
} }

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@ -4,11 +4,10 @@
// Make me compile and pass the test! // Make me compile and pass the test!
// Execute `rustlings hint vecs1` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint vecs1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn array_and_vec() -> ([i32; 4], Vec<i32>) { fn array_and_vec() -> ([i32; 4], Vec<i32>) {
let a = [10, 20, 30, 40]; // a plain array let a = [10, 20, 30, 40]; // a plain array
let v = // TODO: declare your vector here with the macro for vectors let v = vec![10, 20, 30, 40]; // TODO: declare your vector here with the macro for vectors
(a, v) (a, v)
} }

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@ -6,13 +6,12 @@
// //
// Execute `rustlings hint vecs2` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint vecs2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn vec_loop(mut v: Vec<i32>) -> Vec<i32> { fn vec_loop(mut v: Vec<i32>) -> Vec<i32> {
for i in v.iter_mut() { for i in v.iter_mut() {
// TODO: Fill this up so that each element in the Vec `v` is // TODO: Fill this up so that each element in the Vec `v` is
// multiplied by 2. // multiplied by 2.
??? *i *= 2;
} }
// At this point, `v` should be equal to [4, 8, 12, 16, 20]. // At this point, `v` should be equal to [4, 8, 12, 16, 20].
@ -23,7 +22,7 @@ fn vec_map(v: &Vec<i32>) -> Vec<i32> {
v.iter().map(|num| { v.iter().map(|num| {
// TODO: Do the same thing as above - but instead of mutating the // TODO: Do the same thing as above - but instead of mutating the
// Vec, you can just return the new number! // Vec, you can just return the new number!
??? num * 2
}).collect() }).collect()
} }

1
rustlings Submodule

@ -0,0 +1 @@
Subproject commit 32b234c9f0de2f63f905d461639d9f7ed94776bc