题解 | #最小长方形#

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

int main() {
	int a, b, tt = 0;
	set<int> v1, v2;
	while (cin >> a >> b) {
		if (a == 0 && b == 0) {
			tt++;
			if (tt == 1) {
				cout << *v1.begin() << " " << *v2.begin() << " " << *v1.rbegin() <<" " << *v2.rbegin() << endl;
				v1.clear();
				v2.clear();
				continue;
			}
			if (tt == 2)
				break;
		} else {
			tt = 0;
			v1.insert(a);
			v2.insert(b);
		}
	}
}