Pair

Pair

두 객체를 하나의 객체로 취급할 수 있게 묶음.

---

#include <utility>

pair <[type], [type]> p = make_pair(a, b);
p.first
p.second

vector 이용

#include <iostream>
#include <utility>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
    vector<pair<int, string>> v;

    v.push_back(pair<int, string>(3, "A"));
    v.push_back(pair<int, string>(1, "C"));
    v.push_back(pair<int, string>(2, "E"));
    v.push_back(pair<int, string>(2, "B"));

    sort(v.begin(), v.end());

    vector<pair<int, string>>::iterator iter;
    for(iter = v.begin(); iter != v.end(); iter++){
        cout << "[" << iter->first<< "," << iter->second << "]" << endl;
    }
    return 0;
}

first 우선 배열
second 다음