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  1. #include <algorithm>
  2. #include <cstring>
  3. #include <cstdio>
  4. #include <ctime>
  5.  
  6. using namespace std;
  7.  
  8. int A[1000 * 1000 * 100];
  9. clock_t clk;
  10. int main() {
  11. 	clk = clock();
  12. 	fill(A, A + 1000 * 1000 * 100, -1);
  13. 	printf("CPU Clocks : %d\n", clock() - clk);
  14. 	printf ("%d\n", A[1]);
  15. 	clk = clock();
  16. 	memset(A, -1, sizeof(A));
  17. 	printf("CPU Clocks : %d\n", clock() - clk);
  18. 	printf ("%d\n", A[1]);
  19. 	clk = clock();
  20. 	fill(A, A + 1000 * 1000 * 100, -1);
  21. 	printf("CPU Clocks : %d\n", clock() - clk);
  22. 	printf ("%d\n", A[1]);
  23. 	clk = clock();
  24. 	memset(A, -1, sizeof(A));
  25. 	printf("CPU Clocks : %d\n", clock() - clk);
  26. 	printf ("%d\n", A[1]);
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0.69s 393984KB
comments (?)
stdin
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Standard input is empty
stdout
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CPU Clocks : 370000
-1
CPU Clocks : 80000
-1
CPU Clocks : 150000
-1
CPU Clocks : 90000
-1
https://ideone.com/qkEmC3
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
secret

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