标注的是中等题,但是还是太简单了
#include <iostream>
#include <string>
#include <vector>
using namespace std;
int main(){
string s;
getline(cin,s);
for(int i=0;i<s.length();i++)
{
if(s[i]=='z')s[i]='a';
if(s[i]=='Z')s[i]='A';
if((s[i]<='y'&&s[i]>='a')||(s[i]<='Y'&&s[i]>='A'))
s[i]=s[i]+1;
}
cout<<s<<endl;
}