From 4057b47ab7cb42308ab1390a05b0e1e77211f03b Mon Sep 17 00:00:00 2001 From: Jochen Zimmer Date: Wed, 11 Oct 2023 22:00:59 +0200 Subject: [PATCH] rustlings rust exercises up until primitive types --- exercises/functions/functions1.rs | 6 +++++- exercises/functions/functions2.rs | 4 ++-- exercises/functions/functions3.rs | 3 +-- exercises/functions/functions4.rs | 6 +++--- exercises/functions/functions5.rs | 4 ++-- exercises/if/if1.rs | 11 ++++++----- exercises/if/if2.rs | 9 ++++++--- exercises/if/if3.rs | 5 ++--- exercises/intro/intro1.rs | 1 - exercises/intro/intro2.rs | 5 ++--- exercises/primitive_types/primitive_types1.rs | 3 +-- exercises/primitive_types/primitive_types2.rs | 6 ++---- exercises/primitive_types/primitive_types3.rs | 3 +-- exercises/primitive_types/primitive_types4.rs | 3 +-- exercises/primitive_types/primitive_types5.rs | 3 +-- exercises/primitive_types/primitive_types6.rs | 3 +-- exercises/quiz1.rs | 11 ++++++++--- exercises/variables/variables1.rs | 4 ++-- exercises/variables/variables2.rs | 3 +-- exercises/variables/variables3.rs | 3 +-- exercises/variables/variables4.rs | 4 ++-- exercises/variables/variables5.rs | 3 +-- exercises/variables/variables6.rs | 3 +-- 23 files changed, 52 insertions(+), 54 deletions(-) diff --git a/exercises/functions/functions1.rs b/exercises/functions/functions1.rs index 40ed9a0753..25f6721b5c 100644 --- a/exercises/functions/functions1.rs +++ b/exercises/functions/functions1.rs @@ -3,8 +3,12 @@ // Execute `rustlings hint functions1` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE + fn main() { call_me(); } + +fn call_me() { + +} \ No newline at end of file diff --git a/exercises/functions/functions2.rs b/exercises/functions/functions2.rs index 5154f34d8c..a02fadc3e0 100644 --- a/exercises/functions/functions2.rs +++ b/exercises/functions/functions2.rs @@ -3,13 +3,13 @@ // 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 74f44d6d08..49a520c632 100644 --- a/exercises/functions/functions3.rs +++ b/exercises/functions/functions3.rs @@ -3,10 +3,9 @@ // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE fn main() { - call_me(); + call_me(5); } fn call_me(num: u32) { diff --git a/exercises/functions/functions4.rs b/exercises/functions/functions4.rs index 77c4b2aa3b..76182bb325 100644 --- a/exercises/functions/functions4.rs +++ b/exercises/functions/functions4.rs @@ -8,14 +8,14 @@ // Execute `rustlings hint functions4` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE + fn main() { - let original_price = 51; + let original_price = 50; 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 f1b63f480b..3608bf0f6a 100644 --- a/exercises/functions/functions5.rs +++ b/exercises/functions/functions5.rs @@ -3,7 +3,7 @@ // Execute `rustlings hint functions5` or use the `hint` watch subcommand for a // hint. -// 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/if/if1.rs b/exercises/if/if1.rs index 4734d78fdd..0548bc6840 100644 --- a/exercises/if/if1.rs +++ b/exercises/if/if1.rs @@ -2,13 +2,14 @@ // // 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 { - // Complete this function to return the bigger number! - // Do not use: - // - another function call - // - additional variables + if (a > b){ + a + } + else{ + b + } } // Don't mind this for now :) diff --git a/exercises/if/if2.rs b/exercises/if/if2.rs index f512f13ffc..67c3595029 100644 --- a/exercises/if/if2.rs +++ b/exercises/if/if2.rs @@ -5,13 +5,16 @@ // // 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 { if fizzish == "fizz" { "foo" - } else { - 1 + } + else if fizzish == "fuzz" { + "bar" + } + else { + "baz" } } diff --git a/exercises/if/if3.rs b/exercises/if/if3.rs index 169627406c..80088f1ace 100644 --- a/exercises/if/if3.rs +++ b/exercises/if/if3.rs @@ -2,17 +2,16 @@ // // Execute `rustlings hint if3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE pub fn animal_habitat(animal: &str) -> &'static str { let identifier = if animal == "crab" { 1 } else if animal == "gopher" { - 2.0 + 2 } else if animal == "snake" { 3 } else { - "Unknown" + 4 }; // DO NOT CHANGE THIS STATEMENT BELOW diff --git a/exercises/intro/intro1.rs b/exercises/intro/intro1.rs index 37fa011226..6bb098aeec 100644 --- a/exercises/intro/intro1.rs +++ b/exercises/intro/intro1.rs @@ -13,7 +13,6 @@ // Execute `rustlings hint intro1` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE fn main() { println!("Hello and"); diff --git a/exercises/intro/intro2.rs b/exercises/intro/intro2.rs index 990b20f09c..62b592d3b3 100644 --- a/exercises/intro/intro2.rs +++ b/exercises/intro/intro2.rs @@ -5,8 +5,7 @@ // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE - fn main() { - println!("Hello {}!"); + let world = "World"; + println!("Hello {world}!"); } diff --git a/exercises/primitive_types/primitive_types1.rs b/exercises/primitive_types/primitive_types1.rs index 36633400b5..4f5af9890f 100644 --- a/exercises/primitive_types/primitive_types1.rs +++ b/exercises/primitive_types/primitive_types1.rs @@ -3,7 +3,6 @@ // 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 NOT DONE fn main() { // Booleans (`bool`) @@ -13,7 +12,7 @@ fn main() { println!("Good morning!"); } - let // Finish the rest of this line like the example! Or make it be false! + let is_evening = false;// Finish the rest of this line like the example! Or make it be false! if is_evening { println!("Good evening!"); } diff --git a/exercises/primitive_types/primitive_types2.rs b/exercises/primitive_types/primitive_types2.rs index f1616ed3b2..c9e3906eb6 100644 --- a/exercises/primitive_types/primitive_types2.rs +++ b/exercises/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 NOT DONE + fn main() { // Characters (`char`) @@ -19,9 +19,7 @@ fn main() { println!("Neither alphabetic nor numeric!"); } - 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! + let your_character = 'ß'; if your_character.is_alphabetic() { println!("Alphabetical!"); } else if your_character.is_numeric() { diff --git a/exercises/primitive_types/primitive_types3.rs b/exercises/primitive_types/primitive_types3.rs index 8b0de44e96..f7670789b2 100644 --- a/exercises/primitive_types/primitive_types3.rs +++ b/exercises/primitive_types/primitive_types3.rs @@ -5,10 +5,9 @@ // Execute `rustlings hint primitive_types3` or use the `hint` watch subcommand // for a hint. -// I AM NOT DONE fn main() { - let a = ??? + let a :[i32;101] = [0;101]; if a.len() >= 100 { println!("Wow, that's a big array!"); diff --git a/exercises/primitive_types/primitive_types4.rs b/exercises/primitive_types/primitive_types4.rs index d44d8776fa..9564c7a926 100644 --- a/exercises/primitive_types/primitive_types4.rs +++ b/exercises/primitive_types/primitive_types4.rs @@ -5,13 +5,12 @@ // Execute `rustlings hint primitive_types4` or use the `hint` watch subcommand // for a hint. -// I AM NOT DONE #[test] fn slice_out_of_array() { let a = [1, 2, 3, 4, 5]; - let nice_slice = ??? + let nice_slice = &a[1..4]; assert_eq!([2, 3, 4], nice_slice) } diff --git a/exercises/primitive_types/primitive_types5.rs b/exercises/primitive_types/primitive_types5.rs index f646986ea8..b6a99a587b 100644 --- a/exercises/primitive_types/primitive_types5.rs +++ b/exercises/primitive_types/primitive_types5.rs @@ -5,11 +5,10 @@ // Execute `rustlings hint primitive_types5` or use the `hint` watch subcommand // for a hint. -// I AM NOT DONE fn main() { let cat = ("Furry McFurson", 3.5); - let /* your pattern here */ = cat; + let (name, age) = cat; println!("{} is {} years old.", name, age); } diff --git a/exercises/primitive_types/primitive_types6.rs b/exercises/primitive_types/primitive_types6.rs index 07cc46c65a..d556d085d3 100644 --- a/exercises/primitive_types/primitive_types6.rs +++ b/exercises/primitive_types/primitive_types6.rs @@ -6,13 +6,12 @@ // Execute `rustlings hint primitive_types6` or use the `hint` watch subcommand // for a hint. -// I AM NOT DONE #[test] fn indexing_tuple() { let numbers = (1, 2, 3); // Replace below ??? with the tuple indexing syntax. - let second = ???; + let second = numbers.1; assert_eq!(2, second, "This is not the 2nd number in the tuple!") diff --git a/exercises/quiz1.rs b/exercises/quiz1.rs index 4ee5ada7d8..378fef1b47 100644 --- a/exercises/quiz1.rs +++ b/exercises/quiz1.rs @@ -13,10 +13,15 @@ // // No hints this time ;) -// I AM NOT DONE -// Put your function here! -// fn calculate_price_of_apples { + +fn calculate_price_of_apples(count:i32) -> i32{ + if count <= 40 { + count * 2 + }else{ + count * 1 + } +} // Don't modify this function! #[test] diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs index b3e089a527..1ec79c100a 100644 --- a/exercises/variables/variables1.rs +++ b/exercises/variables/variables1.rs @@ -5,9 +5,9 @@ // 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 e1c23edf7d..2e7df30936 100644 --- a/exercises/variables/variables2.rs +++ b/exercises/variables/variables2.rs @@ -3,10 +3,9 @@ // Execute `rustlings hint variables2` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE fn main() { - let x; + let x: i32 = 0; if x == 10 { println!("x is ten!"); } else { diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs index 86bed419f4..50cbe0f411 100644 --- a/exercises/variables/variables3.rs +++ b/exercises/variables/variables3.rs @@ -3,9 +3,8 @@ // 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 = 0; println!("Number {}", x); } diff --git a/exercises/variables/variables4.rs b/exercises/variables/variables4.rs index 5394f39462..5d05eb66ff 100644 --- a/exercises/variables/variables4.rs +++ b/exercises/variables/variables4.rs @@ -3,10 +3,10 @@ // 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 a29b38be8e..2a312acb58 100644 --- a/exercises/variables/variables5.rs +++ b/exercises/variables/variables5.rs @@ -3,11 +3,10 @@ // 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 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); } diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs index 853183babc..ab6b0c6dd4 100644 --- a/exercises/variables/variables6.rs +++ b/exercises/variables/variables6.rs @@ -3,9 +3,8 @@ // Execute `rustlings hint variables6` or use the `hint` watch subcommand for a // hint. -// I AM NOT DONE -const NUMBER = 3; +const NUMBER: i8 = 3; fn main() { println!("Number {}", NUMBER); }