답안 #430725

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
430725	2021-06-17T02:50:06 Z	JUANDI321	기지국 (IOI20_stations)	C++17	컴파일 오류	0 ms	0 KB

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];

void dfs(int node, int i)
{
  if(ch[node])return;
  ch[node]=true;
  l[i] = node;
  //cout<<node<<endl;
  for(auto y : g[node])
  {
    if(!ch[y])
    {
      dfs(y, i+1);
    }
  }
}
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, 0);//cout<<"hola"<<endl;
  for (int i = 0; i < n; i++) {
    labels[l[i]] = i;
    //cout<<"l[i] "<<l[i]<<" i "<<i<<endl;
  }

  memset(ch, false, sizeof(ch));
  for(int i=0; i<n; i++) G[i].clear()  
  
  return labels;
}

int find_next_station(int s, int t, vector<int> c) 
{
  if(t>s)return s+1;
  return s-1;
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:49:26: error: 'G' was not declared in this scope
   49 |   for(int i=0; i<n; i++) G[i].clear()
      |                          ^
stations.cpp:52:1: warning: no return statement in function returning non-void [-Wreturn-type]
   52 | }
      | ^