Development C

#include
#include
int main(void) {
clock_t start, end;
int i = 0;
start = clock();
for(i = 0; i < 99999999; i++)
;
end = clock();
printf("Oeff.. %.2f sec's\n", (double)(end - start) / (double)CLOCKS_PER_SEC);
return 0;
}