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  1. fn f(n: u64) -> u64 {
  2.     let to_width = |x| ((x as f64).log10() + 1f64) as u64;
  3.     (1..n + 1).filter(|x| x % 2 == 1).map(to_width).fold(0, |acc, w| acc + w)
  4. }
  5. fn main() {
  6.     for n in vec!(3, 10, 9999, 123456789) {println!("{} => {:?}", n, f(n))}
  7. }
  8.  
Time limit exceeded #stdin #stdout 5s 17976KB
comments (?)
stdin 
Standard input is empty
stdout 
3 => 2
10 => 5
9999 => 19445
https://ideone.com/Wl46o3
language:
Rust (rust 1.56)
created:
5 years ago
visibility:
public

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