1000 加密算法

a

z

 1 #include<iostream>
 2 using namespace std;
 3 int main()
 4 {
 5     char a;
 6     cin>>a;
 7     if(a=='a')
 8     cout<<"z";
 9     else if(a=='z')
10     cout<<"a";
11     else 
12     cout<<char('z'-a+'a');
13     return 0;
14 }