UVA 10487

UVA 10487

#include <iostream>#include <cstdio>#include <cstring>#include <string>#include <algorithm>using namespace std;bool cmp(string a,string b){        return (a+b)>(b+a);}int main(){        //freopen("in","r",stdin);        int i,n;        string a[100];        while(cin>>n&&n)        {                for(i=0;i<n;i++)                        cin>>a[i];                sort(a,a+n,cmp);                for(i=0;i<n;i++)                        cout<<a[i];                cout<<endl;        }        return 0;}