Submission #430732

#	Time	Username	Problem	Language	Result	Execution time	Memory
430732		JUANDI321	Stations (IOI20_stations)	C++17	0 / 100	850 ms	576 KiB

stations

#include "stations.h"
#include <vector>
#include <iostream>
#include <cstring>
 
using namespace std;
vector<vector<int>> g(1000+10);
vector<int> l(1000 +10);
bool ch[1010];
int j = 0;

void dfs(int node)
{
  if(ch[node])return;
  ch[node]=true;
  l[j] = node;
  //cout<<node<<endl;
  for(auto y : g[node])
  {
    if(!ch[y])
    {
      dfs(y);
      j++;
    }
  }
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
  vector<int> labels(n);
  
  for(int i = 0; i < n-1; i++)
  {
    g[u[i]].push_back(v[i]);
    g[v[i]].push_back(u[i]);
  }
  int spn = 0;
  for(int i = 0; i < n; i++)
  {
    if(g[i].size() == 1)
    {
      spn = i;
      break;
    }
  }
  dfs(spn);//cout<<"hola"<<endl;
  for (int i = 0; i < n; i++) {
    labels[l[i]] = i;
    //cout<<"l[i] "<<l[i]<<" i "<<i<<endl;
  }
 //cout<<"-----------"<<endl;
  memset(ch, false, sizeof(ch));
  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