Submission #501177

#TimeUsernameProblemLanguageResultExecution timeMemory
501177aymanrsGame (IOI14_game)C++14
100 / 100
522 ms23448 KiB
#include <bits/stdc++.h>
using namespace std;
vector<vector<bool>> a;
vector<vector<int>> c;
void initialize(int n){
	a.resize(n);
	c.resize(n);
	for(auto& i : a) i.resize(n, false);
}
int hasEdge(int u, int v){
	a[u][v] = a[v][u] = true;
	if(find(c[u].begin(), c[u].end(), v) != c[u].end()) return 1;
	auto uc = c[u], vc = c[v];
	uc.push_back(u);
	vc.push_back(v);
	for(int i : uc) for(int j : vc) {
		if(!a[i][j]) return 0;
	}
	for(int i : uc){
		for(int j : vc){
			c[j].push_back(i);
			c[i].push_back(j);
		}
	}
	return 1;
}
// int main(){
// 	int n, u,v;
// 	cin >> n;
// 	initialize(n);
// 	for(int i = 0;i < n * (n-1) / 2;i++){
// 		cin >> u >> v;
// 		cout << hasEdge(u, v) << '\n';
// 	}
// }
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