From 50b048d6c1a24de40c0df5fecf6061f3c0b5c947 Mon Sep 17 00:00:00 2001 From: Richard Hoffmann Date: Sat, 15 Jul 2023 11:27:04 +0200 Subject: [PATCH] solved vars and funcs --- exercises/functions/functions1.rs | 4 +++- exercises/functions/functions2.rs | 4 +--- exercises/functions/functions3.rs | 4 +--- exercises/functions/functions4.rs | 4 +--- exercises/functions/functions5.rs | 4 +--- exercises/intro/intro1.rs | 2 -- exercises/intro/intro2.rs | 4 +--- exercises/variables/variables1.rs | 4 +--- exercises/variables/variables2.rs | 4 +--- exercises/variables/variables3.rs | 4 +--- exercises/variables/variables4.rs | 4 +--- exercises/variables/variables5.rs | 10 +++++----- exercises/variables/variables6.rs | 4 +--- 13 files changed, 18 insertions(+), 38 deletions(-) diff --git a/exercises/functions/functions1.rs b/exercises/functions/functions1.rs index 03d8af70..f7f06d29 100644 --- a/exercises/functions/functions1.rs +++ b/exercises/functions/functions1.rs @@ -1,7 +1,9 @@ // functions1.rs // Execute `rustlings hint functions1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE +fn call_me() { + println!("called me") +} fn main() { call_me(); diff --git a/exercises/functions/functions2.rs b/exercises/functions/functions2.rs index 7d40a578..5a51bdfb 100644 --- a/exercises/functions/functions2.rs +++ b/exercises/functions/functions2.rs @@ -1,13 +1,11 @@ // functions2.rs // Execute `rustlings hint functions2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { call_me(3); } -fn call_me(num:) { +fn call_me(num: i32) { for i in 0..num { println!("Ring! Call number {}", i + 1); } diff --git a/exercises/functions/functions3.rs b/exercises/functions/functions3.rs index 3b9e585b..617a050a 100644 --- a/exercises/functions/functions3.rs +++ b/exercises/functions/functions3.rs @@ -1,10 +1,8 @@ // functions3.rs // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - call_me(); + call_me(10); } fn call_me(num: u32) { diff --git a/exercises/functions/functions4.rs b/exercises/functions/functions4.rs index 65d5be4f..40677fc9 100644 --- a/exercises/functions/functions4.rs +++ b/exercises/functions/functions4.rs @@ -7,14 +7,12 @@ // in the signatures for now. If anything, this is a good way to peek ahead // to future exercises!) -// I AM NOT DONE - fn main() { let original_price = 51; println!("Your sale price is {}", sale_price(original_price)); } -fn sale_price(price: i32) -> { +fn sale_price(price: i32) -> i32 { if is_even(price) { price - 10 } else { diff --git a/exercises/functions/functions5.rs b/exercises/functions/functions5.rs index 5d762961..ee8210ab 100644 --- a/exercises/functions/functions5.rs +++ b/exercises/functions/functions5.rs @@ -1,13 +1,11 @@ // functions5.rs // Execute `rustlings hint functions5` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let answer = square(3); println!("The square of 3 is {}", answer); } fn square(num: i32) -> i32 { - num * num; + num * num } diff --git a/exercises/intro/intro1.rs b/exercises/intro/intro1.rs index cfc55c30..54889778 100644 --- a/exercises/intro/intro1.rs +++ b/exercises/intro/intro1.rs @@ -9,8 +9,6 @@ // 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! -// I AM NOT DONE - fn main() { println!("Hello and"); println!(r#" welcome to... "#); diff --git a/exercises/intro/intro2.rs b/exercises/intro/intro2.rs index efc1af20..b5b1d0a8 100644 --- a/exercises/intro/intro2.rs +++ b/exercises/intro/intro2.rs @@ -2,8 +2,6 @@ // Make the code print a greeting to the world. // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - println!("Hello {}!"); + println!("Hello {}!", "World"); } diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs index f4d182ac..84de9fdc 100644 --- a/exercises/variables/variables1.rs +++ b/exercises/variables/variables1.rs @@ -2,9 +2,7 @@ // Make me compile! // Execute `rustlings hint variables1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - x = 5; + let x = 5; println!("x has the value {}", x); } diff --git a/exercises/variables/variables2.rs b/exercises/variables/variables2.rs index 641aeb8e..65280e15 100644 --- a/exercises/variables/variables2.rs +++ b/exercises/variables/variables2.rs @@ -1,10 +1,8 @@ // variables2.rs // Execute `rustlings hint variables2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let x; + let x: i32 = 30; if x == 10 { println!("x is ten!"); } else { diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs index 819b1bc7..54bbc817 100644 --- a/exercises/variables/variables3.rs +++ b/exercises/variables/variables3.rs @@ -1,9 +1,7 @@ // variables3.rs // Execute `rustlings hint variables3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let x: i32; + let x: i32 = 44; println!("Number {}", x); } diff --git a/exercises/variables/variables4.rs b/exercises/variables/variables4.rs index 54491b0a..8c2ddd6d 100644 --- a/exercises/variables/variables4.rs +++ b/exercises/variables/variables4.rs @@ -1,10 +1,8 @@ // variables4.rs // Execute `rustlings hint variables4` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let x = 3; + let mut x = 3; println!("Number {}", x); x = 5; // don't change this line println!("Number {}", x); diff --git a/exercises/variables/variables5.rs b/exercises/variables/variables5.rs index 0e670d2a..389bcc70 100644 --- a/exercises/variables/variables5.rs +++ b/exercises/variables/variables5.rs @@ -1,11 +1,11 @@ // variables5.rs // Execute `rustlings hint variables5` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let number = "T-H-R-E-E"; // don't change this line + let mut number = "T-H-R-E-E"; // don't change this line println!("Spell a Number : {}", number); - number = 3; // don't rename this variable - println!("Number plus two is : {}", number + 2); + { + let number = 3; // don't rename this variable + println!("Number plus two is : {}", number + 2); + } } diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs index a8520122..e8314b28 100644 --- a/exercises/variables/variables6.rs +++ b/exercises/variables/variables6.rs @@ -1,9 +1,7 @@ // variables6.rs // 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() { println!("Number {}", NUMBER); }