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const CARS_PER_HR: u32 = 221;
pub fn production_rate_per_hour(speed: u8) -> f64 {
let mut cars: f64 = ((speed as u32) * CARS_PER_HR) as f64;
match speed {
5..=8 => cars *= 0.90,
9 | 10 => cars *= 0.77,
_ => {},
}
cars
}
pub fn working_items_per_minute(speed: u8) -> u32 {
(production_rate_per_hour(speed) / 60.0).floor() as u32
}
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