Submission #1081071

#	Time	Username	Problem	Language	Result	Execution time	Memory
1081071		DarkMatter	Game (IOI14_game)	C++14	100 / 100	343 ms	47956 KiB

game

#define _CRT_SECURE_NO_WARNINGS
#include "game.h"
#include<bits/stdc++.h>
using namespace std;
vector<long long>p(2e3 + 5);
vector<vector<long long>>cnt(2e3 + 5, vector<long long>(2e3 + 5));
long long find(long long u) {
	return p[u] == u ? u : p[u] = find(p[u]);
}
void unite(long long u, long long v) {
	u = find(u), v = find(v);
	p[u] = v;
	for (int i = 0; i < 2e3 + 5; i++)
		cnt[v][i] = cnt[u][i] + cnt[v][i], cnt[i][v] = cnt[i][u] + cnt[i][v];
	for (int i = 0; i < 2e3 + 5; i++)
		cnt[u][i] = cnt[i][u] = 0;
}
void initialize(int n) {
	for (int i = 0; i < 2e3 + 5; i++)
		p[i] = i;
	for (int i = 0; i <= n; i++)
		for (int j = 0; j <= n; j++)
			cnt[i][j] = 1;
}

int hasEdge(int u, int v) {
	u = find(u), v = find(v);
	cnt[u][v]--, cnt[v][u]--;
	if (!cnt[u][v]) {
		unite(u, v);
		return 1;
	}
	return 0;
}

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 58 / 58