Submission #317796

#	Time	Username	Problem	Language	Result	Execution time	Memory
317796		miss_robot	Game (IOI14_game)	C++14	42 / 100	1051 ms	12224 KiB

game

#include <bits/stdc++.h>
#include "game.h"

#pragma GCC optimize("O3")

using namespace std;

int n;
vector< unordered_set<int> > g;
vector<int> vis;

void initialize(int N){
	n = N;
	g.resize(n);
	for(int i = 0; i < n; i++)
		for(int j = 0; j < n; j++) if(i != j)
			g[i].insert(j);
}

int dfs(int u, int w){
	if(vis[u]) return 0;
	vis[u] = 1;
	if(u == w) return 1;
	for(int v : g[u]) if(dfs(v, w)) return 1;
	return 0;
}

int hasEdge(int u, int v) {
	if(!g[u].count(v)) return 0;
	g[u].erase(v), g[v].erase(u);
	vis.assign(n, 0);
	if(dfs(u, v)) return 0;
	g[u].insert(v), g[v].insert(u);
	return 1;
}

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58