rustlings/exercises/quiz1.rs
OllyDS c2a01888e1 Completed first 8 tasks and first quiz.
Some more reading required on the following:

- `move_semantics` aka ownership and borrowing.
- `enums` especially using with match expressions.
2022-07-26 22:51:53 +01:00

27 lines
756 B
Rust

// quiz1.rs
// This is a quiz for the following sections:
// - Variables
// - Functions
// - If
// Mary is buying apples. One apple usually costs 2 Rustbucks, but if you buy
// more than 40 at once, each apple only costs 1! 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(num: i32) -> i32 {
return if num > 40 { num } else { num * 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(65);
assert_eq!(70, price1);
assert_eq!(80, price2);
assert_eq!(65, price3);
}