41 lines
1 KiB
Rust
41 lines
1 KiB
Rust
// quiz1.rs
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// This is a quiz for the following sections:
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// - Variables
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// - Functions
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// - If
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// Mary is buying apples. The price of an apple is calculated as follows:
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// - An apple costs 2 rustbucks.
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// - If Mary buys more than 40 apples, each apple only costs 1 rustbuck!
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// Write a function that calculates the price of an order of apples given
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// the quantity bought. No hints this time!
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// Put your function here!
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fn calculate_price_of_apples(quantity: i32) -> i32 {
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let mut quantity= quantity;
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if quantity <= 40 {
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quantity = quantity * 2;
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}
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return quantity;
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// if quantity > 40 {
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// quantity
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// } else {
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// quantity * 2
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// }
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}
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// Don't modify this function!
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#[test]
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fn verify_test() {
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let price1 = calculate_price_of_apples(35);
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let price2 = calculate_price_of_apples(40);
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let price3 = calculate_price_of_apples(41);
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let price4 = calculate_price_of_apples(65);
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assert_eq!(70, price1);
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assert_eq!(80, price2);
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assert_eq!(41, price3);
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assert_eq!(65, price4);
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}
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