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Cyvann7vs.cjpearce

Number of digits

Algorithms
Code
Diff
  • fn digits(n: u64) -> usize {
    n.to_string().chars().count()
}
    • fn digits(mut n: u64) -> usize {
    • std::iter::from_fn(|| { n = n / 10; Some(n) }).
    • take_while(|n| *n > 0)
    • .count() + 1
    • fn digits(n: u64) -> usize {
    • n.to_string().chars().count()
    • }