题解 | #密码检查#

#include <stdio.h>
#include<string.h>
int main() 
{
    int n = 0;
    scanf("%d", &n);

    char password[n][200];//n行
    //输入
    for (int i = 0; i < n; i++)
    {
        scanf("%s", password[i]);
        int len = strlen(password[i]);
        
        //判断输入的字符是否合法
        if (len < 8)
        {
            puts("NO");
            goto here;
        }
        int judge_1 = 0;//判断是否出现大写字母
        int judge_2 = 0;//判断是否出现小写字母
        int judge_3 = 0;//判断是否出现数字字符
        for (int j = 0; j < len; j++)
        {
            if (password[i][0] >= 48 && password[i][0] <= 57)
            {
                puts("NO");
                goto here;
            }
            if (password[i][j] <= 47 && password[i][j] >= 58 && password[i][j] <= 64 && password[i][j] >= 91 && password[i][j] <= 96 && password[i][j] >= 123)
            {
                puts("NO");//数字字符，大写字母，小写字母
                goto here;
            }
            else 
            {
                if (password[i][j] >= 48 && password[i][j] <= 57)
                {
                    judge_3 = 1;
                }
                if (password[i][j] >= 65 && password[i][j] <= 90)
                {
                    judge_1 = 1;
                }
                if (password[i][j] >= 97 && password[i][j] <= 122)
                {
                    judge_2 = 1;
                }
            }
        }
        if ((judge_1 == 1 && judge_2 == 1) || (judge_1 == 1 && judge_3 == 1) || (judge_2 == 1 && judge_3 == 1))
        {
            printf("YES\n");
        }
        else 
        {
            printf("NO\n");
        }
        here:
        ;
    }
    
    return 0;
}