【密码】 （C语言代码）

解题思路:





注意事项:





参考代码:

#include <stdio.h>

#include <string.h>

int main(void)

{

int i, j, n, count, length;

char ch[51];

scanf("%d", &n);

for (i = 0;i < n;i++)

{

scanf("%s", ch);

count = 0;

length = strlen(ch);

if (length >= 8 && length <= 16)

count++;

else

break;

for (j = 0;j < length;j++)

if (ch[j] >= 'A'&&ch[j] <= 'Z')

{

count++;

break;

}

for (j = 0;j < length;j++)

if (ch[j] >= 'a'&&ch[j] <= 'z')

{

count++;

break;

}

for (j = 0;j < length;j++)

if (ch[j] - '0' >= 0 && ch[j] - '0' <= 9)

{

count++;

break;

}

for (j = 0;j < length;j++)

if (ch[j] == '~' || ch[j] == '!' || ch[j] == '@' || ch[j] == '#'&&ch[j] == '$' || ch[j] == '%' || ch[j] == '^')

{

count++;

break;

}

if (count == 4)

{

if (i == n - 1)

printf("YES");

else

printf("YES\n");

}

else

{

if (i == n - 1)

printf("NO");

else

printf("NO\n");

}

}

return 0;

}