int main(){
bool f = 1; int sum = 1;
	for (int i = 3; i< 1000000; i += 2) {
		f = 1;
		int z=sqrt(i) ;
		for (int j = 3; j <= z; j += 2) {
			if (i % j == 0 &&i != j) {
				f = 0;
				break;
			}
		}
		if (f == 1) {
			sum++;
		}
	}

	printf("%d",sum);
	}


Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls  Ts/call  Ts/call  name
100.60      0.28     0.28                             _fini

  Call graph (explanation follows)


granularity: each sample hit covers 2 byte(s) for 3.55% of 0.28 seconds

index % time    self  children    called     name
                             1000000             _fini [1]
[1]    100.0    0.28    0.00       0+1000000 _fini [1]
                             1000000             _fini [1]
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