84 lines
2.3 KiB
Rust
84 lines
2.3 KiB
Rust
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const GENERIC: [&str; 20] = [
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"",
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"one",
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"two",
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"three",
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"four",
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"five",
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"six",
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"seven",
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"eight",
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"nine",
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"ten",
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"eleven",
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"twelve",
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"thirteen",
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"fourteen",
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"fifteen",
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"sixteen",
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"seventeen",
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"eighteen",
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"nineteen",
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];
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const SPECIAL: [&str; 11] = [
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"",
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"",
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"twenty",
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"thirty",
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"forty",
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"fifty",
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"sixty",
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"seventy",
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"eighty",
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"ninety",
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"hundred",
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];
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fn translate(number: u64) -> String {
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let mut result: String = "".to_string();
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match number {
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number if number < 20 => { result = GENERIC[(number) as usize].to_string(); },
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number if number >= 20 && number < 100 => {
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let number_string = number.to_string();
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let tens = number_string.chars().nth(0).unwrap().to_digit(10).unwrap();
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let ones = number_string.chars().nth(1).unwrap().to_digit(10).unwrap();
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result = SPECIAL[tens as usize].to_owned()+GENERIC[(ones) as usize];
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},
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100 => { result = "onehundred".to_string(); }
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number if number > 100 && number < 1000 => {
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let number_string = number.to_string();
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let hundreds = number_string.chars().nth(0).unwrap().to_digit(10).unwrap();
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let tens = number_string.chars().nth(1).unwrap().to_digit(10).unwrap();
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let ones = number_string.chars().nth(2).unwrap().to_digit(10).unwrap();
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let combined = format!("{}{}", number_string.chars().nth(1).unwrap(), number_string.chars().nth(2).unwrap()).parse::<u64>().unwrap();
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if combined < 20 {
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if ones == 0 && tens == 0 {
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result = GENERIC[hundreds as usize].to_owned()+"hundred"+GENERIC[combined as usize];
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} else {
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result = GENERIC[hundreds as usize].to_owned()+"hundredand"+GENERIC[combined as usize];
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}
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} else {
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result = GENERIC[hundreds as usize].to_owned()+"hundredand"+SPECIAL[(tens) as usize]+GENERIC[(ones) as usize];
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}
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},
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1000 => { result = "onethousand".to_string(); }
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_ => {},
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}
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result
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}
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fn main() {
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let mut total = 0;
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for i in 1..=1000 {
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total += translate(i).len();
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}
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println!("{}", total);
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}
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