RosettaCodeData/Task/Mayan-numerals/Rust/mayan-numerals.rust

70 lines
1.9 KiB
Plaintext

const ONE: &str = "●";
const FIVE: &str = "——";
const ZERO: &str = "Θ";
fn main() {
println!("{}", mayan(4005));
println!("{}", mayan(8017));
println!("{}", mayan(326_205));
println!("{}", mayan(886_205));
println!("{}", mayan(69));
println!("{}", mayan(420));
println!("{}", mayan(1_063_715_456));
}
fn mayan(dec: i64) -> String {
let mut digits = vec![];
let mut num = dec;
while num > 0 {
digits.push(num % 20);
num /= 20;
}
digits = digits.into_iter().rev().collect();
let mut boxes = vec!["".to_string(); 6];
let n = digits.len();
for (i, digit) in digits.iter().enumerate() {
if i == 0 {
boxes[0] = "┏━━━━".to_string();
if i == n - 1 {
boxes[0] += "┓";
}
} else if i == n - 1 {
boxes[0] += "┳━━━━┓";
} else {
boxes[0] += "┳━━━━";
}
for j in 1..5 {
boxes[j] += "┃";
let elem = 0.max(digit - (4 - j as i64) * 5);
if elem >= 5 {
boxes[j] += &format!("{: ^4}", FIVE);
} else if elem > 0 {
boxes[j] += &format!("{: ^4}", ONE.repeat(elem as usize % 15));
} else if j == 4 {
boxes[j] += &format!("{: ^4}", ZERO);
} else {
boxes[j] += &" ";
}
if i == n - 1 {
boxes[j] += "┃";
}
}
if i == 0 {
boxes[5] = "┗━━━━".to_string();
if i == n - 1 {
boxes[5] += "┛";
}
} else if i == n - 1 {
boxes[5] += "┻━━━━┛";
} else {
boxes[5] += "┻━━━━";
}
}
let mut mayan = format!("Mayan {}:\n", dec);
for b in boxes {
mayan += &(b + "\n");
}
mayan
}