speed

gistfile1.c

#include <stdio.h>
#include <time.h>

int main() {
    // time it
	clock_t cstart = clock();
	clock_t cend = 0;

	int i, j, k;
	int sum = 0;
	int count = 0;
	for (i = 0; i < 100; i++) {
		for (j = 0; j < 100; j++) {
			for (k = 0; k < 100; k++) {
				sum = i*k*j;
				count++;
				printf("[%d] - %d\n", count, sum);
			}
		}
	}

	cend = clock();
	printf("%.3f cpu sec\n", ((double)cend - (double)cstart)*1.0e-6);

	return 0;
}