rustlings/exercises/02_functions/functions4.rs

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// This store is having a sale where if the price is an even number, you get 10
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// Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
// Don't worry about the function bodies themselves, we are only interested in
// the signatures for now.
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fn is_even(num: i64) -> bool {
num % 2 == 0
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}
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// TODO: Fix the function signature.
fn sale_price(price: i64) -> {
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if is_even(price) {
price - 10
} else {
price - 3
}
}
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fn main() {
let original_price = 51;
println!("Your sale price is {}", sale_price(original_price));
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}