Submission #94373

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
94373	2019-01-18 02:20:34	gumball	Pipes (BOI13_pipes)	C++14	74.07 / 100	139 ms	16820 KiB

pipes

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#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n,m,i,a[101010],h[505050],ta,tb;
vector<ll> v[101010],w[101010];
ll dfs(ll aa,ll bb,ll cc)
{
  ll ii;
  for(ii=0;ii<v[aa].size();ii++)
  {
    if(w[aa][ii]==bb)continue;
    dfs(v[aa][ii],w[aa][ii],aa);
  }
  if(aa==1)
  {
    if(a[aa]!=0)
    {
      cout<<0<<"\n";
      exit(0);
    }
  }
  else
  {
    h[bb]=a[aa]*2;
    a[cc]-=a[aa];
    a[aa]-=0;
 
 
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Compilation message (stderr)

pipes.cpp: In function 'long long int dfs(long long int, long long int, long long int)':
pipes.cpp:13:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(ii=0;ii<v[aa].size();ii++)
           ~~^~~~~~~~~~~~~
pipes.cpp:32:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 30 / 30
• Subtask 2: 44.074074074074076 / 70