【NOIP1998】【Luogu1012】拼数

problem

solution

codes

#include<iostream>
#include<algorithm>
#include<string>
using namespace std;
string a[30], ans;
bool cmp(string a, string b){ return a+b>b+a; }
int main(){
    int n; cin>>n;
    for(int i = 0; i < n; i++)cin>>a[i];
    sort(a,a+n,cmp);
    for(int i = 0; i < n; i++)ans+=a[i];
    cout<<ans<<"
";
    return 0;
}