HDU oj 密码



#include<stdio.h>#include<string.h>main(){int m;scanf("%d",&m);char a[50];getchar();while(m--){int k,i,x=0,y=0,z=0,h=0;gets(a);k=strlen(a);if(k<8||k>16) printf("NO\n");else{for(i=0;i<k;i++){  if(a[i]>='a'&&a[i]<='z')     x++;      else if(a[i]>='A'&&a[i]<='Z')        y++;      else if(a[i]>='0'&&a[i]<='9')   z++;      else if(a[i]=='~'||a[i]=='!'||a[i]=='@'||a[i]=='#'||a[i]=='$'||a[i]=='%'||a[i]=='^')   h++;    }    if((x==0&&y==0)||(x==0&&z==0)||(x==0&&h==0)||(y==0&&z==0)||(y==0&&h==0)||(z==0&&h==0)||(x==0&&y==0&&z==0)||(x==0&&y==0&&h==0)||(y==0&&z==0&&h==0)||(x==0&&y==0&&z==0&&h==0))   {printf("NO\n");}else printf("YES\n");        }}}