diff --git a/exercises/enums/enums1.rs b/exercises/enums/enums1.rs
index a2223d3..adf7f01 100644
--- a/exercises/enums/enums1.rs
+++ b/exercises/enums/enums1.rs
@@ -1,11 +1,12 @@
// enums1.rs
// Make me compile! Execute `rustlings hint enums1` for hints!
-// 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/enums/enums2.rs b/exercises/enums/enums2.rs
index 52ccb22..36380e7 100644
--- a/exercises/enums/enums2.rs
+++ b/exercises/enums/enums2.rs
@@ -1,11 +1,12 @@
// enums2.rs
// Make me compile! Execute `rustlings hint enums2` for hints!
-// I AM NOT DONE
-
#[derive(Debug)]
enum Message {
- // TODO: define the different variants used below
+ Move { x: i32, y: i32 },
+ Echo(String),
+ ChangeColor(i32, i32, i32),
+ Quit,
}
impl Message {
diff --git a/exercises/enums/enums3.rs b/exercises/enums/enums3.rs
index bb7dfb4..c6f787d 100644
--- a/exercises/enums/enums3.rs
+++ b/exercises/enums/enums3.rs
@@ -1,10 +1,11 @@
// enums3.rs
// Address all the TODOs to make the tests pass!
-// I AM NOT DONE
-
enum Message {
- // TODO: implement the message variant types based on their usage below
+ Move {x: u8, y: u8},
+ Echo(String),
+ ChangeColor(u8, u8, u8),
+ Quit,
}
struct Point {
@@ -36,7 +37,12 @@ impl State {
}
fn process(&mut self, message: Message) {
- // TODO: create a match expression to process the different message variants
+ match message {
+ Message::Move {x, y} => self.move_position(Point{x, y}),
+ Message::Echo(s) => self.echo(s),
+ Message::ChangeColor(r, g, b) => self.change_color((r, g, b)),
+ Message::Quit => self.quit(),
+ }
}
}
diff --git a/exercises/functions/functions1.rs b/exercises/functions/functions1.rs
index 3112527..d0867d7 100644
--- a/exercises/functions/functions1.rs
+++ b/exercises/functions/functions1.rs
@@ -1,8 +1,8 @@
// functions1.rs
// Make me compile! Execute `rustlings hint functions1` for hints :)
-// I AM NOT DONE
-
fn main() {
call_me();
}
+
+fn call_me() {}
diff --git a/exercises/functions/functions2.rs b/exercises/functions/functions2.rs
index 108ba38..cfc3cc1 100644
--- a/exercises/functions/functions2.rs
+++ b/exercises/functions/functions2.rs
@@ -1,13 +1,11 @@
// functions2.rs
// Make me compile! Execute `rustlings hint functions2` for hints :)
-// 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 e3c1bf7..4ae2f9a 100644
--- a/exercises/functions/functions3.rs
+++ b/exercises/functions/functions3.rs
@@ -1,10 +1,8 @@
// functions3.rs
// Make me compile! Execute `rustlings hint functions3` for hints :)
-// I AM NOT DONE
-
fn main() {
- call_me();
+ call_me(3);
}
fn call_me(num: i32) {
diff --git a/exercises/functions/functions4.rs b/exercises/functions/functions4.rs
index 58637e4..b6af7c4 100644
--- a/exercises/functions/functions4.rs
+++ b/exercises/functions/functions4.rs
@@ -4,14 +4,12 @@
// This store is having a sale where if the price is an even number, you get
// 10 Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
-// 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 d22aa6c..059e929 100644
--- a/exercises/functions/functions5.rs
+++ b/exercises/functions/functions5.rs
@@ -1,13 +1,11 @@
// functions5.rs
// Make me compile! Execute `rustlings hint functions5` for hints :)
-// I AM NOT DONE
-
fn main() {
let answer = square(3);
println!("The answer is {}", answer);
}
fn square(num: i32) -> i32 {
- num * num;
+ num * num
}
diff --git a/exercises/if/if1.rs b/exercises/if/if1.rs
index 9086754..361b9fc 100644
--- a/exercises/if/if1.rs
+++ b/exercises/if/if1.rs
@@ -1,13 +1,16 @@
// if1.rs
-// 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
// Execute `rustlings hint if1` for hints
+ 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 80effbd..545083a 100644
--- a/exercises/if/if2.rs
+++ b/exercises/if/if2.rs
@@ -4,13 +4,13 @@
// Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
// Execute the command `rustlings hint if2` if you want a hint :)
-// I AM NOT DONE
-
pub fn fizz_if_foo(fizzish: &str) -> &str {
if fizzish == "fizz" {
"foo"
+ } else if fizzish == "fuzz" {
+ "bar"
} else {
- 1
+ "baz"
}
}
diff --git a/exercises/modules/modules1.rs b/exercises/modules/modules1.rs
index 812dfee..3af7f48 100644
--- a/exercises/modules/modules1.rs
+++ b/exercises/modules/modules1.rs
@@ -1,10 +1,8 @@
// modules1.rs
// Make me compile! Execute `rustlings hint modules1` for hints :)
-// I AM NOT DONE
-
mod sausage_factory {
- fn make_sausage() {
+ pub fn make_sausage() {
println!("sausage!");
}
}
diff --git a/exercises/modules/modules2.rs b/exercises/modules/modules2.rs
index fde439d..50a3f08 100644
--- a/exercises/modules/modules2.rs
+++ b/exercises/modules/modules2.rs
@@ -1,11 +1,9 @@
// modules2.rs
// Make me compile! Execute `rustlings hint modules2` for hints :)
-// I AM NOT DONE
-
mod delicious_snacks {
- use self::fruits::PEAR as fruit;
- use self::veggies::CUCUMBER as veggie;
+ pub use self::fruits::PEAR as fruit;
+ pub use self::veggies::CUCUMBER as veggie;
mod fruits {
pub const PEAR: &'static str = "Pear";
diff --git a/exercises/primitive_types/primitive_types1.rs b/exercises/primitive_types/primitive_types1.rs
index 0912139..91734c6 100644
--- a/exercises/primitive_types/primitive_types1.rs
+++ b/exercises/primitive_types/primitive_types1.rs
@@ -2,8 +2,6 @@
// 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`)
@@ -12,7 +10,7 @@ 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 6576a4d..b37ed38 100644
--- a/exercises/primitive_types/primitive_types2.rs
+++ b/exercises/primitive_types/primitive_types2.rs
@@ -2,8 +2,6 @@
// 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() {
// Characters (`char`)
@@ -16,7 +14,7 @@ fn main() {
println!("Neither alphabetic nor numeric!");
}
- let // Finish this line like the example! What's your favorite character?
+ let your_character = '🎉'; // 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/primitive_types/primitive_types3.rs b/exercises/primitive_types/primitive_types3.rs
index dfd6351..4cd7339 100644
--- a/exercises/primitive_types/primitive_types3.rs
+++ b/exercises/primitive_types/primitive_types3.rs
@@ -1,11 +1,9 @@
// primitive_types3.rs
-// 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` for hints!
-// I AM NOT DONE
-
fn main() {
- let a = ???
+ let a = "hello";
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 10b553e..fd4e73f 100644
--- a/exercises/primitive_types/primitive_types4.rs
+++ b/exercises/primitive_types/primitive_types4.rs
@@ -2,13 +2,11 @@
// Get a slice out of Array a where the ??? is so that the test passes.
// Execute `rustlings hint primitive_types4` for hints!!
-// 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 .. a.len()-1];
assert_eq!([2, 3, 4], nice_slice)
}
diff --git a/exercises/primitive_types/primitive_types5.rs b/exercises/primitive_types/primitive_types5.rs
index 680d8d2..85f42cf 100644
--- a/exercises/primitive_types/primitive_types5.rs
+++ b/exercises/primitive_types/primitive_types5.rs
@@ -2,11 +2,9 @@
// Destructure the `cat` tuple so that the println will work.
// Execute `rustlings hint primitive_types5` for hints!
-// 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 2bc817e..c8d010a 100644
--- a/exercises/primitive_types/primitive_types6.rs
+++ b/exercises/primitive_types/primitive_types6.rs
@@ -3,9 +3,7 @@
// You can put this right into the `println!` where the ??? is.
// Execute `rustlings hint primitive_types6` for hints!
-// I AM NOT DONE
-
fn main() {
let numbers = (1, 2, 3);
- println!("The second number is {}", ???);
+ println!("The second number is {}", numbers.1);
}
diff --git a/exercises/strings/strings1.rs b/exercises/strings/strings1.rs
index 8090244..21a0139 100644
--- a/exercises/strings/strings1.rs
+++ b/exercises/strings/strings1.rs
@@ -2,13 +2,11 @@
// Make me compile without changing the function signature!
// Execute `rustlings hint strings1` for hints ;)
-// I AM NOT DONE
-
fn main() {
let answer = current_favorite_color();
println!("My current favorite color is {}", answer);
}
fn current_favorite_color() -> String {
- "blue"
+ "blue".to_string()
}
diff --git a/exercises/strings/strings2.rs b/exercises/strings/strings2.rs
index 5a2ce74..a048f88 100644
--- a/exercises/strings/strings2.rs
+++ b/exercises/strings/strings2.rs
@@ -2,11 +2,9 @@
// Make me compile without changing the function signature!
// Execute `rustlings hint strings2` for hints :)
-// 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/structs/structs1.rs b/exercises/structs/structs1.rs
index 6d0b2f4..ab7ac55 100644
--- a/exercises/structs/structs1.rs
+++ b/exercises/structs/structs1.rs
@@ -1,13 +1,12 @@
// structs1.rs
// Address all the TODOs to make the tests pass!
-// I AM NOT DONE
-
struct ColorClassicStruct {
- // TODO: Something goes here
+ name: String,
+ hex: String,
}
-struct ColorTupleStruct(/* TODO: Something goes here */);
+struct ColorTupleStruct(String, String);
#[derive(Debug)]
struct UnitStruct;
@@ -18,8 +17,10 @@ mod tests {
#[test]
fn classic_c_structs() {
- // TODO: Instantiate a classic c struct!
- // let green =
+ let green = ColorClassicStruct {
+ name: String::from("green"),
+ hex: "#00FF00".to_string(),
+ };
assert_eq!(green.name, "green");
assert_eq!(green.hex, "#00FF00");
@@ -27,8 +28,7 @@ mod tests {
#[test]
fn tuple_structs() {
- // TODO: Instantiate a tuple struct!
- // let green =
+ let green = ColorTupleStruct("green".to_string(), "#00FF00".to_string());
assert_eq!(green.0, "green");
assert_eq!(green.1, "#00FF00");
@@ -36,8 +36,7 @@ mod tests {
#[test]
fn unit_structs() {
- // TODO: Instantiate a unit struct!
- // let unit_struct =
+ let unit_struct = UnitStruct;
let message = format!("{:?}s are fun!", unit_struct);
assert_eq!(message, "UnitStructs are fun!");
diff --git a/exercises/structs/structs2.rs b/exercises/structs/structs2.rs
index 0699137..2824a49 100644
--- a/exercises/structs/structs2.rs
+++ b/exercises/structs/structs2.rs
@@ -2,8 +2,6 @@
// Address all the TODOs to make the tests pass!
// No hints, just do it!
-// I AM NOT DONE
-
#[derive(Debug)]
struct Order {
name: String,
@@ -34,8 +32,11 @@ mod tests {
#[test]
fn your_order() {
let order_template = create_order_template();
- // TODO: Create your own order using the update syntax and template above!
- // let your_order =
+ let your_order = Order {
+ name: String::from("Hacker in Rust"),
+ count: 1,
+ ..order_template
+ };
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/structs/structs3.rs b/exercises/structs/structs3.rs
index 77cc154..e7a6876 100644
--- a/exercises/structs/structs3.rs
+++ b/exercises/structs/structs3.rs
@@ -3,8 +3,6 @@
// exercise we have defined the Package struct and we want to test some logic attached to it,
// make the code compile and the tests pass! If you have issues execute `rustlings hint structs3`
-// I AM NOT DONE
-
#[derive(Debug)]
struct Package {
from: String,
@@ -15,18 +13,18 @@ struct Package {
impl Package {
fn new(from: String, to: String, weight: f32) -> Package {
if weight <= 0.0 {
- // Something goes here...
+ panic!();
} else {
return Package {from, to, weight};
}
}
- fn is_international(&self) -> ??? {
- // Something goes here...
+ fn is_international(&self) -> bool {
+ true
}
- fn get_fees(&self, cost_per_kg: f32) -> ??? {
- // Something goes here...
+ fn get_fees(&self, cost_per_kg: f32) -> f32 {
+ cost_per_kg * self.weight
}
}
@@ -47,7 +45,7 @@ mod tests {
fn create_international_package() {
let country_from = String::from("Spain");
let country_to = String::from("Russia");
-
+
let package = Package::new(country_from, country_to, 1.2);
assert!(package.is_international());
@@ -58,10 +56,10 @@ mod tests {
let country_from = String::from("Spain");
let country_to = String::from("Spain");
- let country_fee = ???;
-
+ let country_fee = 8.0;
+
let package = Package::new(country_from, country_to, 22.0);
-
+
assert_eq!(package.get_fees(country_fee), 176.0);
}
}
diff --git a/exercises/test1.rs b/exercises/test1.rs
index 8b5b8fd..936a7d7 100644
--- a/exercises/test1.rs
+++ b/exercises/test1.rs
@@ -7,10 +7,14 @@
// more than 40 at once, each apple only costs 1! Write a function that calculates
// the price of an order of apples given the order amount. No hints this time!
-// I AM NOT DONE
-
// Put your function here!
-// fn ..... {
+fn calculate_apple_price(num: i32) -> i32 {
+ if num < 40 {
+ num * 2
+ } else {
+ num
+ }
+}
// Don't modify this function!
#[test]
diff --git a/exercises/test2.rs b/exercises/test2.rs
index d01606c..1d80f88 100644
--- a/exercises/test2.rs
+++ b/exercises/test2.rs
@@ -7,8 +7,6 @@
// you think each value is. That is, add either `string_slice` or `string`
// before the parentheses on each line. If you're right, it will compile!
-// I AM NOT DONE
-
fn string_slice(arg: &str) {
println!("{}", arg);
}
@@ -17,14 +15,14 @@ fn string(arg: String) {
}
fn main() {
- ("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());
+ string_slice("blue");
+ string_slice(&String::from("abc")[0..1]);
+ string_slice(" hello there ".trim());
+ string("red".to_string());
+ string(String::from("hi"));
+ string("rust is fun!".to_owned());
+ string("nice weather".into());
+ string(format!("Interpolation {}", "Station"));
+ string("Happy Monday!".to_string().replace("Mon", "Tues"));
+ string("mY sHiFt KeY iS sTiCkY".to_lowercase());
}
diff --git a/exercises/test3.rs b/exercises/test3.rs
index f94c36f..5d533f9 100644
--- a/exercises/test3.rs
+++ b/exercises/test3.rs
@@ -7,8 +7,6 @@
// we expect to get when we call `times_two` with a negative number.
// No hints, you can do this :)
-// I AM NOT DONE
-
pub fn times_two(num: i32) -> i32 {
num * 2
}
@@ -19,11 +17,11 @@ mod tests {
#[test]
fn returns_twice_of_positive_numbers() {
- assert_eq!(times_two(4), ???);
+ assert_eq!(times_two(4), 8);
}
#[test]
fn returns_twice_of_negative_numbers() {
- // TODO write an assert for `times_two(-4)`
+ assert_eq!(times_two(-4), -8);
}
}
diff --git a/exercises/tests/tests1.rs b/exercises/tests/tests1.rs
index 50586a1..005731f 100644
--- a/exercises/tests/tests1.rs
+++ b/exercises/tests/tests1.rs
@@ -6,12 +6,10 @@
// This test has a problem with it -- make the test compile! Make the test
// pass! Make the test fail! Execute `rustlings hint tests1` for hints :)
-// I AM NOT DONE
-
#[cfg(test)]
mod tests {
#[test]
fn you_can_assert() {
- assert!();
+ assert!(true);
}
}
diff --git a/exercises/tests/tests2.rs b/exercises/tests/tests2.rs
index 0d981ad..1011086 100644
--- a/exercises/tests/tests2.rs
+++ b/exercises/tests/tests2.rs
@@ -2,12 +2,10 @@
// This test has a problem with it -- make the test compile! Make the test
// pass! Make the test fail! Execute `rustlings hint tests2` for hints :)
-// I AM NOT DONE
-
#[cfg(test)]
mod tests {
#[test]
fn you_can_assert_eq() {
- assert_eq!();
+ assert_eq!(2 + 2, 4);
}
}
diff --git a/exercises/tests/tests3.rs b/exercises/tests/tests3.rs
index 693b8aa..cde9e62 100644
--- a/exercises/tests/tests3.rs
+++ b/exercises/tests/tests3.rs
@@ -4,8 +4,6 @@
// we expect to get when we call `is_even(5)`.
// Execute `rustlings hint tests3` for hints :)
-// I AM NOT DONE
-
pub fn is_even(num: i32) -> bool {
num % 2 == 0
}
@@ -16,6 +14,6 @@ mod tests {
#[test]
fn is_true_when_even() {
- assert!();
+ assert!(is_even(2), true);
}
}
diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs
index 07b1a52..2bd4d3c 100644
--- a/exercises/variables/variables3.rs
+++ b/exercises/variables/variables3.rs
@@ -1,10 +1,8 @@
// variables3.rs
// Make me compile! Execute the command `rustlings hint variables3` if you want a hint :)
-// I AM NOT DONE
-
fn main() {
- let x = 3;
+ let mut x = 3;
println!("Number {}", x);
x = 5;
println!("Number {}", x);
diff --git a/exercises/variables/variables4.rs b/exercises/variables/variables4.rs
index 77f1e9a..f8c7845 100644
--- a/exercises/variables/variables4.rs
+++ b/exercises/variables/variables4.rs
@@ -1,9 +1,7 @@
// variables4.rs
// Make me compile! Execute the command `rustlings hint variables4` if you want a hint :)
-// I AM NOT DONE
-
fn main() {
- let x: i32;
+ let x: i32 = 0;
println!("Number {}", x);
}
diff --git a/exercises/variables/variables5.rs b/exercises/variables/variables5.rs
index 47a68a5..64cebb7 100644
--- a/exercises/variables/variables5.rs
+++ b/exercises/variables/variables5.rs
@@ -1,11 +1,9 @@
// variables5.rs
// Make me compile! Execute the command `rustlings hint variables5` if you want a hint :)
-// I AM NOT DONE
-
fn main() {
let number = "3";
println!("Number {}", number);
- number = 3;
+ let number = 3;
println!("Number {}", number);
}
diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs
index 76afa85..cd08d15 100644
--- a/exercises/variables/variables6.rs
+++ b/exercises/variables/variables6.rs
@@ -1,9 +1,7 @@
// variables5.rs
// Make me compile! Execute the command `rustlings hint variables6` if you want a hint :)
-// I AM NOT DONE
-
-const NUMBER = 3;
+const NUMBER: i32 = 3;
fn main() {
println!("Number {}", NUMBER);
}