Submission #1298099

#	Time	Username	Problem	Language	Result	Execution time	Memory
1298099		lukaye_19	Stations (IOI20_stations)	C++20	0 / 100	1 ms	472 KiB

stations

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

int t = -1;

vector<vector<int>>adj;
vector<int>labels;

void DFS(int node,int parent,int odd)
{
    if (odd) labels[node] = t++;

    for (int child : adj[node]) {
        if (child != parent) DFS(child,node,1 - odd);
    }
    
    if (!odd) labels[node] = t++;
}

vector<int>label(int n, int k, vector<int> u, vector<int> v)
{
    vector<vector<int>>adjc(n);
    vector<int>labelsc(n,0);
    
    adj = adjc;
    labels = labelsc;
      
    for (int i = 0; i < n - 1; i++)
    {
        adj[u[i] - 1].push_back(v[i] - 1);
        adj[v[i] - 1].push_back(u[i] - 1);
    }

    t = -1;
    
    DFS(0,t,1);

    return labels;
}

int find_next_station(int s,int t,vector<int> c)
{
    int next = -1;

    sort(c.begin(), c.end());

    for (int st : c) {
        if (st <= t) next = st;
    }

    return next;
}

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