// 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.
// - However, if Mary buys more than 40 apples, the price of each apple in the
// entire order is reduced to only 1 rustbuck!
// TODO: Write a function that calculates the price of an order of apples given
// the quantity bought.
// fn calculate_price_of_apples(???) -> ??? { ??? }
fn main() {
// You can optionally experiment here.
}
// Don't change the tests!
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn verify_test() {
assert_eq!(calculate_price_of_apples(35), 70);
assert_eq!(calculate_price_of_apples(40), 80);
assert_eq!(calculate_price_of_apples(41), 41);
assert_eq!(calculate_price_of_apples(65), 65);
}
}
In this quiz we are tasked to build a function to calculate price of apples.
Single apple cost 2.
But if we buy more than 40 apples, each apple cost 1.
So the function calculate_price_of_apples should be like this:
fn calculate_price_of_apples(x: i32) -> i32 {
if x > 40 {
x
} else {
x * 2
}
}