diff --git a/exercises/enums/enums1.rs b/exercises/enums/enums1.rs
index a2223d3..2baa8f2 100644
--- a/exercises/enums/enums1.rs
+++ b/exercises/enums/enums1.rs
@@ -1,11 +1,13 @@
// 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 ec32d95..91005dc 100644
--- a/exercises/enums/enums2.rs
+++ b/exercises/enums/enums2.rs
@@ -1,11 +1,13 @@
// 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: i8, y: i8 },
+ Echo(String),
+ ChangeColor(i64, i64, i64),
+ Quit,
}
impl Message {
diff --git a/exercises/functions/functions1.rs b/exercises/functions/functions1.rs
index 3112527..c88968e 100644
--- a/exercises/functions/functions1.rs
+++ b/exercises/functions/functions1.rs
@@ -1,7 +1,9 @@
// functions1.rs
// Make me compile! Execute `rustlings hint functions1` for hints :)
-// I AM NOT DONE
+fn call_me() {
+ println!("hi")
+}
fn main() {
call_me();
diff --git a/exercises/functions/functions2.rs b/exercises/functions/functions2.rs
index 5721a17..85eb4db 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 ed5f839..526cace 100644
--- a/exercises/functions/functions3.rs
+++ b/exercises/functions/functions3.rs
@@ -1,10 +1,9 @@
// functions3.rs
// Make me compile! Execute `rustlings hint functions3` for hints :)
-// I AM NOT DONE
-
fn main() {
- call_me();
+ let call_num: u32 = 5;
+ call_me(call_num);
}
fn call_me(num: u32) {
diff --git a/exercises/functions/functions4.rs b/exercises/functions/functions4.rs
index 58637e4..3a702c2 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;
+ let original_price: i32 = 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/generics/generics1.rs b/exercises/generics/generics1.rs
index f93e64a..967287e 100644
--- a/exercises/generics/generics1.rs
+++ b/exercises/generics/generics1.rs
@@ -1,8 +1,6 @@
// This shopping list program isn't compiling!
// Use your knowledge of generics to fix it.
-// Execute `rustlings hint generics1` for hints!
-
// I AM NOT DONE
fn main() {
diff --git a/exercises/generics/generics2.rs b/exercises/generics/generics2.rs
index 1501529..0cb59ad 100644
--- a/exercises/generics/generics2.rs
+++ b/exercises/generics/generics2.rs
@@ -1,8 +1,6 @@
// This powerful wrapper provides the ability to store a positive integer value.
// Rewrite it using generics so that it supports wrapping ANY type.
-// Execute `rustlings hint generics2` for hints!
-
// I AM NOT DONE
struct Wrapper {
diff --git a/exercises/if/if1.rs b/exercises/if/if1.rs
index 9086754..475287b 100644
--- a/exercises/if/if1.rs
+++ b/exercises/if/if1.rs
@@ -1,13 +1,22 @@
// 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
+ // }
+
+ match a > b {
+ true => a,
+ false => b,
+ }
}
// Don't mind this for now :)
diff --git a/exercises/if/if2.rs b/exercises/if/if2.rs
index 80effbd..4bbece0 100644
--- a/exercises/if/if2.rs
+++ b/exercises/if/if2.rs
@@ -4,14 +4,20 @@
// 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 {
- 1
+ match (fizzish) {
+ "fizz" => "foo",
+ "fuzz" => "bar",
+ _ => "baz"
}
+
+ // if fizzish == "fizz" {
+ // "foo"
+ // } else if fizzish == "fuzz" {
+ // "bar"
+ // } else {
+ // "baz"
+ // }
}
// No test changes needed!
diff --git a/exercises/move_semantics/move_semantics1.rs b/exercises/move_semantics/move_semantics1.rs
index e2f5876..a95f851 100644
--- a/exercises/move_semantics/move_semantics1.rs
+++ b/exercises/move_semantics/move_semantics1.rs
@@ -1,12 +1,10 @@
// move_semantics1.rs
// Make me compile! Execute `rustlings hint move_semantics1` for hints :)
-// I AM NOT DONE
-
fn main() {
let vec0 = Vec::new();
- let vec1 = fill_vec(vec0);
+ let mut vec1 = fill_vec(vec0);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
diff --git a/exercises/move_semantics/move_semantics2.rs b/exercises/move_semantics/move_semantics2.rs
index bd21fbb..97b7176 100644
--- a/exercises/move_semantics/move_semantics2.rs
+++ b/exercises/move_semantics/move_semantics2.rs
@@ -2,12 +2,10 @@
// Make me compile without changing line 13!
// Execute `rustlings hint move_semantics2` for hints :)
-// I AM NOT DONE
-
fn main() {
let vec0 = Vec::new();
- let mut vec1 = fill_vec(vec0);
+ let mut vec1 = fill_vec(&vec0);
// Do not change the following line!
println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
@@ -17,8 +15,8 @@ fn main() {
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
-fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
- let mut vec = vec;
+fn fill_vec(vec: &Vec<i32>) -> Vec<i32> {
+ let mut vec = vec.clone();
vec.push(22);
vec.push(44);
diff --git a/exercises/move_semantics/move_semantics3.rs b/exercises/move_semantics/move_semantics3.rs
index 43fef74..8be23e5 100644
--- a/exercises/move_semantics/move_semantics3.rs
+++ b/exercises/move_semantics/move_semantics3.rs
@@ -3,8 +3,6 @@
// (no lines with multiple semicolons necessary!)
// Execute `rustlings hint move_semantics3` for hints :)
-// I AM NOT DONE
-
fn main() {
let vec0 = Vec::new();
@@ -17,7 +15,7 @@ fn main() {
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
-fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
+fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
vec.push(22);
vec.push(44);
vec.push(66);
diff --git a/exercises/move_semantics/move_semantics4.rs b/exercises/move_semantics/move_semantics4.rs
index 2a23c71..c3cf03d 100644
--- a/exercises/move_semantics/move_semantics4.rs
+++ b/exercises/move_semantics/move_semantics4.rs
@@ -4,12 +4,8 @@
// freshly created vector from fill_vec to its caller.
// Execute `rustlings hint move_semantics4` for hints!
-// I AM NOT DONE
-
fn main() {
- let vec0 = Vec::new();
-
- let mut vec1 = fill_vec(vec0);
+ let mut vec1 = fill_vec();
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
@@ -20,7 +16,7 @@ fn main() {
// `fill_vec()` no longer takes `vec: Vec<i32>` as argument
fn fill_vec() -> Vec<i32> {
- let mut vec = vec;
+ let mut vec = Vec::new();
vec.push(22);
vec.push(44);
diff --git a/exercises/primitive_types/primitive_types1.rs b/exercises/primitive_types/primitive_types1.rs
index 0912139..d936505 100644
--- a/exercises/primitive_types/primitive_types1.rs
+++ b/exercises/primitive_types/primitive_types1.rs
@@ -2,17 +2,15 @@
// 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`)
- let is_morning = true;
+ let is_morning = false;
if is_morning {
println!("Good morning!");
}
- let // Finish the rest of this line like the example! Or make it be false!
+ let is_evening = !is_morning; // 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..6f95edc 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 +14,8 @@ fn main() {
println!("Neither alphabetic nor numeric!");
}
- let // Finish this line like the example! What's your favorite character?
+ let your_character: char = '🍕';
+ // 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 aaa518b..07e40de 100644
--- a/exercises/primitive_types/primitive_types3.rs
+++ b/exercises/primitive_types/primitive_types3.rs
@@ -2,10 +2,12 @@
// 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 mut a: Vec<i8> = Vec::new();
+
+ for num in 0..100 {
+ a.push(num)
+ }
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..d773c13 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..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 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 b8c9b82..833d6a0 100644
--- a/exercises/primitive_types/primitive_types6.rs
+++ b/exercises/primitive_types/primitive_types6.rs
@@ -3,14 +3,11 @@
// You can put the expression for the second element where ??? is so that the test passes.
// Execute `rustlings hint primitive_types6` for hints!
-// 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!")
+ assert_eq!(2, second, "This is not the 2nd number in the tuple!")
}
diff --git a/exercises/quiz1.rs b/exercises/quiz1.rs
index 2bb2c24..d1669e0 100644
--- a/exercises/quiz1.rs
+++ b/exercises/quiz1.rs
@@ -7,19 +7,21 @@
// 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_of_apples: i32) -> i32 {
+ if num_of_apples > 40 {
+ return num_of_apples;
+ }
+
+ num_of_apples * 2
+}
// Don't modify this function!
#[test]
fn verify_test() {
let price1 = calculate_apple_price(35);
- let price2 = calculate_apple_price(40);
- let price3 = calculate_apple_price(65);
+ let price2 = calculate_apple_price(65);
assert_eq!(70, price1);
- assert_eq!(80, price2);
- assert_eq!(65, price3);
+ assert_eq!(65, price2);
}
diff --git a/exercises/standard_library_types/iterators1.rs b/exercises/standard_library_types/iterators1.rs
index 4606ad3..3fd519d 100644
--- a/exercises/standard_library_types/iterators1.rs
+++ b/exercises/standard_library_types/iterators1.rs
@@ -1,11 +1,11 @@
// iterators1.rs
-//
+//
// Make me compile by filling in the `???`s
//
// When performing operations on elements within a collection, iterators are essential.
-// This module helps you get familiar with the structure of using an iterator and
+// This module helps you get familiar with the structure of using an iterator and
// how to go through elements within an iterable collection.
-//
+//
// Execute `rustlings hint iterators1` for hints :D
// I AM NOT DONE
diff --git a/exercises/standard_library_types/iterators5.rs b/exercises/standard_library_types/iterators5.rs
index d8d4453..2d97bd4 100644
--- a/exercises/standard_library_types/iterators5.rs
+++ b/exercises/standard_library_types/iterators5.rs
@@ -7,7 +7,8 @@
// imperative style for loops. Recreate this counting functionality using
// iterators. Only the two iterator methods (count_iterator and
// count_collection_iterator) need to be modified.
-// Execute `rustlings hint iterators5` for hints.
+// Execute `rustlings hint
+// iterators5` for hints.
//
// Make the code compile and the tests pass.
diff --git a/exercises/structs/structs1.rs b/exercises/structs/structs1.rs
index 6d0b2f4..4fbaf70 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;
@@ -19,7 +18,10 @@ mod tests {
#[test]
fn classic_c_structs() {
// TODO: Instantiate a classic c struct!
- // let green =
+ let green = ColorClassicStruct {
+ name: String::from("green"),
+ hex: String::from("#00FF00"),
+ };
assert_eq!(green.name, "green");
assert_eq!(green.hex, "#00FF00");
@@ -28,7 +30,7 @@ mod tests {
#[test]
fn tuple_structs() {
// TODO: Instantiate a tuple struct!
- // let green =
+ let green = ColorTupleStruct(String::from("green"), String::from("#00FF00"));
assert_eq!(green.0, "green");
assert_eq!(green.1, "#00FF00");
@@ -37,7 +39,7 @@ 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 f9c6427..8002762 100644
--- a/exercises/structs/structs2.rs
+++ b/exercises/structs/structs2.rs
@@ -1,8 +1,6 @@
// structs2.rs
// Address all the TODOs to make the tests pass!
-// I AM NOT DONE
-
#[derive(Debug)]
struct Order {
name: String,
@@ -34,7 +32,11 @@ 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 =
+ 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 a80d062..9e009a9 100644
--- a/exercises/structs/structs3.rs
+++ b/exercises/structs/structs3.rs
@@ -4,8 +4,6 @@
// Make the code compile and the tests pass!
// If you have issues execute `rustlings hint structs3`
-// I AM NOT DONE
-
#[derive(Debug)]
struct Package {
sender_country: String,
@@ -16,7 +14,7 @@ struct Package {
impl Package {
fn new(sender_country: String, recipient_country: String, weight_in_grams: i32) -> Package {
if weight_in_grams <= 0 {
- // Something goes here...
+ panic!("Weight cannot be 0 or negative")
} else {
return Package {
sender_country,
@@ -26,12 +24,12 @@ impl Package {
}
}
- fn is_international(&self) -> ??? {
- // Something goes here...
+ fn is_international(&self) -> bool {
+ &self.sender_country != &self.recipient_country
}
- fn get_fees(&self, cents_per_gram: i32) -> ??? {
- // Something goes here...
+ fn get_fees(&self, cents_per_gram: i32) -> i32 {
+ &self.weight_in_grams * cents_per_gram
}
}
@@ -73,7 +71,7 @@ mod tests {
let sender_country = String::from("Spain");
let recipient_country = String::from("Spain");
- let cents_per_gram = ???;
+ let cents_per_gram = 3;
let package = Package::new(sender_country, recipient_country, 1500);
diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs
index 4a3af73..db85e7e 100644
--- a/exercises/variables/variables1.rs
+++ b/exercises/variables/variables1.rs
@@ -6,9 +6,7 @@
// even after you already figured it out. If you got everything working and
// feel ready for the next exercise, remove the `I AM NOT DONE` comment below.
-// 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 7774a8f..da4598c 100644
--- a/exercises/variables/variables2.rs
+++ b/exercises/variables/variables2.rs
@@ -1,10 +1,8 @@
// variables2.rs
// Make me compile! Execute the command `rustlings hint variables2` if you want a hint :)
-// I AM NOT DONE
-
fn main() {
- let x;
+ let x: i32 = 0;
if x == 10 {
println!("Ten!");
} else {
diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs
index 30ec48f..3566ef2 100644
--- a/exercises/variables/variables3.rs
+++ b/exercises/variables/variables3.rs
@@ -1,10 +1,9 @@
// 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; // don't change this line
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 da37ae9..10ef314 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 = "T-H-R-E-E";
println!("Spell a Number : {}", number);
- number = 3;
+ let number = 3;
println!("Number plus two is : {}", number + 2);
}
diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs
index 9866691..2ad47aa 100644
--- a/exercises/variables/variables6.rs
+++ b/exercises/variables/variables6.rs
@@ -1,9 +1,7 @@
// variables6.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);
}