C-打印 100-200 之间的素数（试除法）

#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
#include<math.h>
int main()
{
    int i = 0;
    int count = 0;
    
    for (i = 101; i <= 200; i+=2)
    {
        //判断i是否是素数
        //素数的判断规则
        //1.只能被1和它本身整除
        int j = 0;

        for (j = 2; j <=sqrt(i); j++)
        {
            if (i % j == 0)
            {

                break;
            }

        }
        if (j > sqrt(i))
        {
            count++;
            printf("%d ", i);
        }
    }
    printf("\ncount=%d\n", count);

    return 0;
}

 

#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
int main()
{
    int i = 0;
    int count = 0;
    for (i = 100; i <= 200; i++)
    {
        //判断i是否是素数
        //素数的判断规则
        //1.只能被1和它本身整除
        int j = 0;
        for (j = 2; j < i; j++)
        {
            if (i % j == 0)
            {

                break;
            }

        }
        if (j == i)
        {
            count++;
            printf("%d ", i);
        }
    }
    printf("\ncount=%d\n", count);
}