Submission #601879

#	Time	Username	Problem	Language	Result	Execution time	Memory
601879		Minindu2006	Split the Attractions (IOI19_split)	C++14	18 / 100	81 ms	18436 KiB

split

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

const int MX = 2e5 + 5;
vector<int> adj[MX];

void dfs(int i, vector<int> &vis, vector<int> &path)
{
	vis[i] = 1;
	path.push_back(i);
	for(int j:adj[i])
		if(!vis[j])
			dfs(j, vis, path);
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q)
{
	int m = p.size();
	for(int i=0;i<m;i++)
	{
		adj[p[i]].push_back(q[i]);
		adj[q[i]].push_back(p[i]);
	}

	int root = -1;
	for(int i=0;i<n;i++)
	{
		if(adj[i].size() == 1)
		{
			root = i;
			break;
		}
	}
	root = max(root, 0);
	vector<int> vis(n, 0), path, res(n, 3);
	dfs(root, vis, path);
	for(int i=0;i<a;i++)
		res[path[i]] = 1;
	for(int i=a;i<a+b;i++)
		res[path[i]] = 2;
	return res;
}

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 24
• Subtask 5: 0 / 36