Submission #742863

#	Time	Username	Problem	Language	Result	Execution time	Memory
742863		t6twotwo	Fountain Parks (IOI21_parks)	C++17	5 / 100	54 ms	9000 KiB

parks

#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
int construct_roads(std::vector<int> x, std::vector<int> y) {
	int n = x.size();
	if (x == vector<int>(n, 2)) {
		int mn = *min_element(y.begin(), y.end());
		int mx = *max_element(y.begin(), y.end());
		if (mx - mn != (n - 1) * 2) {
			return 0;
		}
		vector<int> p(n);
		iota(p.begin(), p.end(), 0);
		sort(p.begin(), p.end(), [&](int i, int j) {
			return y[i] < y[j];
		});
		vector<int> u(n - 1), v(n - 1), a(n - 1), b(n - 1);
		for (int i = 0; i < n - 1; i++) {
			u[i] = p[i];
			v[i] = p[i + 1];
			a[i] = 3;
			b[i] = y[p[i]] + 1;
		}
		build(u, v, a, b);
		return 1;
	}
	return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30