[221020] Level_ 1 문자열 내 마음대로 정렬하기

https://school.programmers.co.kr/learn/courses/30/lessons/12915

프로그래머스

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

using namespace std;

vector<string> solution(vector<string> strings, int n) {
    vector<string> answer;
    vector<pair<char, string>> temp;
    for (string s : strings)
    {
        temp.push_back(make_pair(s[n], s));
    }
    sort(temp.begin(), temp.end());
    for (pair<char, string> p : temp)
    {
        answer.push_back(p.second);
    }
    return answer;
}