题解 | #编排字符串#

#include <bits/stdc++.h>
using namespace std;
int main() {
    int n;cin>>n;
    vector<string>v;
    while(n--){
        int k=1;
        string temp;
        cin>>temp;
        v.push_back(temp);
        for(auto a = v.rbegin();a!=v.rend();a++)
            if(k<5)
                cout<<k++<<"="<<*a<<" ";
        cout<<endl;
    }
}
// 64 位输出请用 printf("%lld")