#include<bits/stdc++.h> using namespace std; int main(){ string s; cin>>s; for(int i=0;i<s.size();i++){ if(s[i]=='z') s[i]-=25; else s[i]++; } cout<<s; return 0; }

分<z和z情况

#include<iostream> using namespace std; char a[]{'b','c','d','e','f','g','h','i','j','k','l','m','n', 'o','p','q','r','s','t','u','v','w','x','y','z','a'}; int main(){ string s="azx"; cin>>s; for(int i=0;i<s.size();i++){ s[i]=a[s[i]-97]; } cout<<s; return 0; }