题解 | 字符串挪移

#include<bits/stdc++.h>
using namespace std;
int main() {

    string s;
    cin>>s;
    list<char> l;

    int n = s.size();
    for (int i=0;i<n;i++) {
        l.push_back(s[i]);
    }
    auto it = l.begin();
    for (int i=0;i<n;i++) {
        l.push_back(*it);
        auto next = l.erase(it);
        it = next;
        it++;
    }

    s.clear();
    for (auto i : l) {
        s.push_back(i);
    }
    cout<<s<<endl;


    return 0;
}