11651 - 좌표 정렬하기 2

solution

code

#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int N;
    cin >> N;
    pair<int, int> * arr = new pair<int, int>[N];
    for(int i = 0; i < N; i++)
        cin >> arr[i].second >> arr[i].first;
    sort(arr, arr+N);

    for(int i = 0; i < N; i++)
        cout << arr[i].second << " " << arr[i].first << '\n';

    return 0;
}

ref

11651번: 좌표 정렬하기 2