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  1. #include <iostream>
  2. using namespace std;
  3.  
  4.  
  5. int mod = 1e9 + 7;
  6. class Solution{
  7. public:
  8.     int nCr(int n, int r){
  9.         // code here
  10.         if(r > n) {
  11.             return 0;
  12.         }
  13.         if(r == n || r == 0) {
  14.             return 1;
  15.         }
  16.  
  17.         return (nCr(n-1,r-1)%mod + nCr(n-1,r)%mod)%mod;
  18.     }
  19. };
  20.  
  21.  
  22. int main() {
  23. 	// your code goes here
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 5276KB
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https://ideone.com/4Exg17
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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