题解 | #字符串加密#

#include <bits/stdc++.h>
using namespace std;
int main()
{
    string k,w;
    while(cin>>k>>w)
    {
        string t="";
        for(auto i:k)
            if(t.find(i)==t.npos)//找不到
                t.push_back(i);
        string a="abcdefghijklmnopqrstuvwxyz";
        for(auto i:a)
            if(t.find(i)==t.npos)
                t.push_back(i);
        string r="";
        for(auto i:w)
            r.push_back(t[i-'a']);
        cout<<r<<endl;
    }
}