HDOJnbsp;nbsp;2043nbsp;nbsp;nbsp;密码

题目：http://acm.hdu.edu.cn/showproblem.php?pid=2043

#include <string.h>
#include <stdio.h>
int main()
{
    char s[1005];
    int n,l,a;
    scanf("%d",&n);
    while(n--)
    {
        scanf("%s",s);
        l=strlen(s);
        a=0;
        if(l>=8&&l<=16)
        {
            for(int i=0;i<l;i++)
                if(s[i]>='A'&&s[i]<='Z')
                {
                    a++;
                    break;
                }
            for(int i=0;i<l;i++)
                if(s[i]>='a'&&s[i]<='z')
                {
                    a++;
                    break;
                }
            for(int i=0;i<l;i++)
                if(s[i]>='0'&&s[i]<='9')
                {
                    a++;
                    break;
                }
            for(int i=0;i<l;i++)
                if(s[i]=='~'||s[i]=='!'||s[i]=='@'||s[i]=='#'||s[i]=='$'||s[i]=='%'||s[i]=='^')
                {
                    a++;
                    break;
                }
        }
        if(a<3)
            puts("NO");
        else
            puts("YES");
    }
    return 0;
}