POJ 1298

#include <cstdio>
#include <cstring>
#include <cctype>
#include <cstdlib>
using namespace std;
char str[210];
int main()
{
    int i,j,k,T;
    char str0[10];
    while(scanf("%s",str0),strcmp(str0,"ENDOFINPUT"))
    {
        getchar();
        memset(str0,0,sizeof(str0));
        memset(str,0,sizeof(str));
        while(gets(str),strcmp(str,"END"))
        {
            for(i=0;str[i]!='\0';i++)
            {
                if(isalpha(str[i]))
                {
                    int temp=(int)str[i]-5;
                    printf("%c",temp>64?temp:temp+26);
                }
                else
                    printf("%c",str[i]);
            }
            putchar('\n');//必须的，否则end不会显示PE 
            memset(str,0,sizeof(str));
        }
    }
    system("pause");
    return 0;
}