제출 #1124785

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1124785		Mousa_Aboubaker	스핑크스 (IOI24_sphinx)	C++20	0 / 100	0 ms	416 KiB

sphinx

#include "sphinx.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> find_colours(int N, vector<int> X, vector<int> Y)
{
	int n = N, m = (int)X.size();
	vector<int> x = X, y = Y;
	vector<int> par(n), sz(n, 1);
	iota(par.begin(), par.end(), 0);
	auto find = [&](auto self, int u) -> int
	{
		return par[u] = (par[u] == u ? u : self(self, par[u]));
	};
	auto unite = [&](int u, int v) -> bool
	{
		u = find(find, u);
		v = find(find, v);
		if(u == v)
			return false;
		if(sz[u] > sz[v])
			swap(u, v);
		sz[v] += sz[u];
		par[u] = v;
		return true;
	};
	vector adj(n, vector<int>());
	for(int i = 0; i < m; i++)
	{
		adj[x[i]].push_back(y[i]);
		adj[y[i]].push_back(x[i]);
	}
	vector<bool> vis(n, false);
	vector<int> e(n, n);
	vector<int> res(n, 0);
	int curr = -1;
	int cnt = 1;
	int lst = 0;
	auto dfs = [&](auto self, int u) -> void
	{
		vis[u] = true;
		e[u] = -1;
		int x = perform_experiment(e);
		if(x == cnt)
		{
			res[u] = curr;
			unite(lst, u);
		}
		else
		{
			res[u] = ++curr;
			cnt++;
		}
		for(auto i: adj[u])
		{
			if(vis[i])
				continue;
			lst = u;
			self(self, i);
		}
	};
	dfs(dfs, 0);
	return res;
	/*for(int i = 0; i < n; i++)
	{
		e.assign(n, -1);
		for(int j = 0; j < n; j++)
		{
			for(int k = 0; k < n; k++)
			{
				if(k == i)
					continue;
				e[k] = j;
			}
			int m = perform_experiment(e);
			if(m == 1)
			{
				res[i] = j;
				break;
			}
		}
	}
	return res;*/
}

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