HDU-1048/编码

#include<iostream>

#include<string.h>

#include<map>

#define M 1000

char a[M];

using namespace std;

int main(){

int i,j;
map<char,char>vis;

//循环数组

for(i=25;i>=0;i--)

{

   if(i-5<0){ vis['A'+i]='A'+21+i;

}  

else vis['A'+i]=('A'+i-5);

   }

while(gets(a)){

if(strcmp(a,"ENDOFINPUT")==0)break;

if(strcmp(a,"START")==0)continue;

if(strcmp(a,"END")==0)continue;

int len=strlen(a);

for(i=0;i<len;i++){

if(vis[a[i]]){
printf("%c",vis[a[i]]);

}else printf("%c",a[i]);

}
printf("\n");}

return 0;}