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  1.  #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. long long Binomial(int n, int k)
  6. {
  7.     double wynik = 1;
  8.     for (int i = 1; i <= k; i++)
  9.         wynik = wynik * (n-i+1)/i;
  10.     return wynik;
  11. }
  12.  
  13. int main()
  14. {
  15. 	int n, k;
  16. 	long long expected;
  17. 	while (cin >> n >> k >> expected)
  18. 	{
  19. 		long long result =  Binomial(n, k);
  20.         cout << "(" << n << ", " << k << ") ";
  21. 		if (result == expected) 
  22. 			cout << "OK" << endl;
  23. 		else
  24. 			cout << "failed!\nexpected: " << expected << "\n  actual: " << result << endl;
  25.  	}
  26.     return 0;
  27. }
Success #stdin #stdout 0s 3460KB
comments (?)
stdin 
1000 3 166167000
52 10 15820024220
30 15 155117520
33 16 1166803110
1000 998 499500
1000 2 499500
stdout 
(1000, 3) OK
(52, 10) OK
(30, 15) OK
(33, 16) OK
(1000, 998) OK
(1000, 2) OK
https://ideone.com/NbWaQu
newton binomial
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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