Submission #430766

#	Time	Username	Problem	Language	Result	Execution time	Memory
430766		JUANDI321	Stations (IOI20_stations)	C++17	0 / 100	4 ms	352 KiB

stations

#include "stations.h"
#include <vector>
#include <iostream>
#include <cstring>
 
using namespace std;
vector<vector<int>> g(1000+10);
vector<int> l(10000 +10);
int spn = -1;

void dfs(int node, int i, int p)
{
	l[node] = i;
	for(int y : g[node])
	{
		if(y != p)
		{
			dfs(y, i+1, node);
		}
	}
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) 
{
	vector<int> labels(n);
	l.resize(n);
	for(int i = 0; i < n-1; i++)
	{
		g[u[i]].push_back(v[i]);
    	g[v[i]].push_back(u[i]);
	}
	if(spn!= -1)
	{
	for(int i = 0; i < n; i++)
	{
		if(g[i].size() == 1)
		{
			spn = i;
			break;
		}
	}}
	dfs(spn, 0, -1);
	//cout<<"hola"<<endl;
	for (int i = 0; i < n; i++) 
	{
		labels[i] = l[i];
		//cout<<"l[i] "<<l[i]<<" lb i "<<labels[l[i]]<<endl;
	}
	//cout<<"---------"<<endl;
	for(int i=0; i<n; i++) g[i].clear(); 
	l.clear();
	return labels;
}
 
int find_next_station(int s, int t, vector<int> c) 
{
	if(t>s)return s+1;
	return s-1;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61