fork(1) download
copy 
  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. unsigned long long int npok( unsigned int n, unsigned int k )
  6. {
  7.     if( k == 0 || k == n ) return 1;
  8.     if( n > 0 && k > 0 && n > k ) return npok( n - 1, k ) + npok( n - 1, k - 1 );
  9. }
  10.  
  11. int main ()
  12. {
  13.     int ile;
  14.     cin>>ile;
  15.     for (int i=0; i<ile; i++)
  16.     {
  17.     unsigned long long int a,b;
  18.     cin>>a>>b;
  19.     cout<<npok(a,b)<<endl;
  20.     }
  21.  
  22.     return 0;
  23. }
Success #stdin #stdout 0s 4376KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/uJLPKh
language:
C++ (gcc 8.3)
created:
6 years 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!