Submission #29047

#	Time	Username	Problem	Language	Result	Execution time	Memory
29047		kavun	Crocodile's Underground City (IOI11_crocodile)	C++14	0 / 100	599 ms	262144 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>

using namespace std;
vector <pair<int,int> > adj[100010];

int dfs(int v, int par)
{
  int mx = 0, secondmx = 0;

  if(adj[v].size() == 1)
    return 0;

  for(int i = 0; i < adj[v].size(); i++)
    {
      int u = adj[v][i].first;
      if(u != par)
	{
	  int val = dfs(u,v);
	  int len = adj[v][i].second;
	  if(val + len >= mx)
	    {
	      secondmx = mx;
          mx = val + len; 
	    }
	}
    }
  return secondmx;
}

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{

  for(int i = 0; i < M ; i++)
    {
      int v = R[i][0],u = R[i][1],l = L[i];
      adj[v].push_back(make_pair(u,l));
      adj[u].push_back(make_pair(v,l));
    }

  for(int i = 0; i < K; i++)
    if(P[i] == 0)
      return 0;

  return dfs(0,0);
}

Compilation message (stderr)

crocodile.cpp: In function 'int dfs(int, int)':
crocodile.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < adj[v].size(); i++)
                    ^

• Subtask 1: 0 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11