[Algorithm] 프로그래머스 코테 연습 완주하지 못한 선수 풀이 with C++

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

string solution(vector<string> participant, vector<string> completion) {
    string ans;
    sort(participant.begin(), participant.end());
    sort(completion.begin(), completion.end());
    
    for(int i=0; i<completion.size(); i++){
        if(participant[i] != completion[i]){
            return participant[i];
        }
    }
    
    return participant[participant.size()-1];
}