mirror of
https://github.com/rust-lang/rustlings.git
synced 2026-01-11 05:09:19 +00:00
38 lines
965 B
Rust
38 lines
965 B
Rust
// quiz1.rs
|
|
// This is a quiz for the following sections:
|
|
// - Variables
|
|
// - Functions
|
|
// - If
|
|
|
|
// Mary is buying apples. The price of an apple is calculated as follows:
|
|
// - An apple costs 2 rustbucks.
|
|
// - If Mary buys more than 40 apples, each apple only costs 1 rustbuck!
|
|
// Write a function that calculates the price of an order of apples given
|
|
// the quantity bought. No hints this time!
|
|
|
|
// Put your function here!
|
|
fn calculate_price_of_apples(qty: u32) -> u32 {
|
|
// if qty > 40 {
|
|
// qty
|
|
// }
|
|
// else {
|
|
// qty * 2
|
|
// }
|
|
|
|
if qty > 40 {qty} else {qty * 2}
|
|
}
|
|
|
|
// Don't modify this function!
|
|
#[test]
|
|
fn verify_test() {
|
|
let price1 = calculate_price_of_apples(35);
|
|
let price2 = calculate_price_of_apples(40);
|
|
let price3 = calculate_price_of_apples(41);
|
|
let price4 = calculate_price_of_apples(65);
|
|
|
|
assert_eq!(70, price1);
|
|
assert_eq!(80, price2);
|
|
assert_eq!(41, price3);
|
|
assert_eq!(65, price4);
|
|
}
|