[ZJ]b516: 凱撒密碼

題目：

http://zerojudge.tw/ShowProblem?problemid=b516

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#include<cstdio>

#include<cstring>

int main()

{

int T;

scanf("%d",&T);

while(T--)

{

char s[15];

memset(s,' ',sizeof(s));

scanf("%s",&s);

int len = strlen(s);

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

{

if(s[i] == 'X')

printf("A");

else if(s[i] == 'Y')

printf("B");

else if(s[i] == 'Z')

printf("C");

else

printf("%c",s[i]+3);

}

printf("\n");

}

return 0;

}