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  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <ctime>
  4. using namespace std;
  5.  
  6. int main() {
  7.  
  8. 	srand(time(0));
  9. 	int N = 100000, M = 0;
  10.  
  11. 	for (int i = 1; i <= N; i++) {
  12.  
  13. 		double x = (double) rand() / RAND_MAX;
  14. 		double y = (double) rand() / RAND_MAX;
  15.  
  16. 		if (x * x + y * y < 1) M++;
  17. 	}
  18.  
  19. 	cout << "pi ~ " << 4.0 * M / N << endl;
  20.  
  21. 	return 0;
  22. }
Success #stdin #stdout 0.01s 5288KB
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Standard input is empty
stdout
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pi ~ 3.1466
https://ideone.com/SYV8gG
language:
C++14 (gcc 8.3)
created:
322 days ago
visibility:
secret

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