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  1. fn main() {
  2.     let p = search(6);
  3.     println!("先手が死ぬ確率 : {:.03}", p);
  4.     println!("後手が死ぬ確率 : {:.03}", 1.0 - p);
  5. }
  6.  
  7. fn search(rem: u32) -> f64 {
  8.     if rem == 0 {
  9.         0.0
  10.     } else {
  11.         let p = 1.0 / rem as f64;
  12.         p + (1.0 - search(rem - 1)) * (1.0 - p)
  13.     }
  14. }
  15.  
Success #stdin #stdout 0s 4524KB
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先手が死ぬ確率 : 0.500
後手が死ぬ確率 : 0.500
https://ideone.com/TQwYVc
language:
Rust (rust 1.56)
created:
6 years ago
visibility:
secret

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