[11651번] 좌표정렬하기2

#include 
#include 
using namespace std;
int N;
pair p[100001];

int main() {
	cin >> N;
	for (int i = 0; i < N; i++) {
		cin >> p[i].second >> p[i].first;
	}
	sort(p, p + N);
	for (int i = 0; i < N; i++) {
		cout << p[i].second << " " << p[i].first << "\n";
	}
	return 0;
}