杭电oj 2043 密码 C语言

#include
#include
 
 
void main()
{
	int m, i,len,j,x,y,z,a;
	char s[42];
	while (~scanf_s("%d", &m))
	{
		getchar();
		for (i = 0; i < m; i++)
		{
			fgets(s, sizeof(s), stdin);
			len=strlen(s)-1,a=x=y=z=0;
			if (len < 8 || len>16)printf("NO\n");
			else
			{
				for (j = 0; j < len; j++)
				{
					if (s[j] >= 'A' && s[j] <= 'Z')x = 1;
					else if (s[j] >= 'a' && s[j] <= 'z')y = 1;
					else if (s[j] >= '0' && s[j] <= '9')z = 1;
					else a = 1;//依题，输入的密码只有四种字符类型，前面判断了三种，剩下的只有一组
				}
				if (x + y + z + a >= 3)printf("YES\n");
				else printf("NO\n");
			}
		}
	}
}