#include <stdio.h> int main(void) { int i, no; int prime[500]; int ptr = 0; unsigned long counter = 0; prime[ptr++] = 2; prime[ptr++] = 3; for(no=5;no<=1000;no+=2) { for (i = 1;i < ptr;i++) { counter++; if (no%prime[i] == 0) break; } if (ptr == i) prime[ptr++] = no; } for (i = 0;i < ptr;i++) printf("%d\n",prime[i]); printf("乘除運算的次數(shù):%lu\n", counter); return(0); }