fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int n, d;
  5.  
  6. void quaylui(int mo, int dong)
  7. {
  8.     if (mo == 0 && dong == 0)
  9.     {
  10.         d++;
  11.         return;
  12.     }
  13.     if (mo > 0)
  14.     {
  15.         quaylui(mo - 1, dong);
  16.     }
  17.     if (dong > mo)
  18.     {
  19.         quaylui(mo, dong - 1);
  20.     }
  21. }
  22.  
  23. int main()
  24. {
  25.     cin >> n;
  26.     quaylui(n / 2, n / 2);
  27.     cout << d;
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin
copy 
4
stdout
copy 
2
https://ideone.com/gnA2iU
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!