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  1. #include <iostream>
  2. #include <chrono>
  3. using namespace std;
  4.  
  5. typedef unsigned long long ull;
  6. typedef unsigned long long _EuclideanRingElement;
  7. ull nzd(ull a, ull b)
  8. {
  9. 	if(b==0) return a;
  10. 	a%=b;
  11. 		return nzd(b,a);
  12. }
  13. ull n,m;
  14.  
  15. _EuclideanRingElement __gcd(_EuclideanRingElement __m,
  16.                             _EuclideanRingElement __n)
  17. {
  18.   while (__n != 0) {
  19.     _EuclideanRingElement __t = __m % __n;
  20.     __m = __n;
  21.     __n = __t;
  22.   }
  23.   return __m;
  24. }
  25.  
  26. int main() {
  27. 	ull A = 1100087778366101931ull, B = 1779979416004714189ull;
  28. 	auto beg = std::chrono::high_resolution_clock::now();
  29. 	ull a1 = nzd(A, B);
  30. 	auto mid = std::chrono::high_resolution_clock::now();
  31. 	ull a2 = __gcd(A, B);
  32. 	auto en = std::chrono::high_resolution_clock::now();
  33.  
  34. 	auto t1 = 1e-9 * std::chrono::duration_cast<std::chrono::nanoseconds>(mid - beg).count();
  35. 	auto t2 = 1e-9 * std::chrono::duration_cast<std::chrono::nanoseconds>(en - mid).count();
  36. 	cout.precision(10);
  37. 	cout << fixed << t1 << " " << t2;
  38. 	return 0;
  39. }
Success #stdin #stdout 0s 3140KB
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stdout
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0.0000058190 0.0000033860
https://ideone.com/BN44BL
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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