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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. long long silnia(int liczba)
  6. {
  7. 	if(liczba<2)
  8. 	return 1;
  9. 	else
  10. 	return liczba*silnia(liczba-1);
  11. }
  12.  
  13. long long dziwne(int n, int k)
  14. {
  15.  
  16. 	if(k)
  17. 	{
  18. 	return n*dziwne(n-1, k-1);
  19. 	}	
  20. 	else 
  21. 	return 1;
  22. }
  23. int main()
  24. {
  25. 	int t;
  26. 	cin>>t;
  27. 	while(t--)
  28. 	{
  29. 		int n, k;
  30. 		cin>>n;
  31. 		cin>>k;
  32. 		cout<<dziwne(n,k)/silnia(k)<<endl;
  33.  
  34. 	}
  35.  
  36.  
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 3472KB
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https://ideone.com/Jet0Lb
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
secret

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