rustlings/exercises/functions/functions4.rs
marisa 9bdb0a12e4 feat: Refactor hint system
Hints are now accessible using the CLI subcommand `rustlings hint
<exercise name`.

BREAKING CHANGE: This fundamentally changes the way people interact with exercises.
2019-11-11 16:51:38 +01:00

22 lines
517 B
Rust

// functions4.rs
// Make me compile! Execute `rustlings hint functions4` for hints :)
// This store is having a sale where if the price is an even number, you get
// 10 (money unit) off, but if it's an odd number, it's 3 (money unit) less.
fn main() {
let original_price = 51;
println!("Your sale price is {}", sale_price(original_price));
}
fn sale_price(price: i32) -> {
if is_even(price) {
price - 10
} else {
price - 3
}
}
fn is_even(num: i32) -> bool {
num % 2 == 0
}