Submission #163199

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
163199	2019-11-11 18:03:13	TadijaSebez	전압 (JOI14_voltage)	C++11	100 / 100	156 ms	14072 KiB

voltage

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#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int N=100050;
vector<int> E[N];
int even[N],odd[N],dep[N],all_odd;
bool was[N];
void DFS(int u)
{
  was[u]=1;
  int p=1;
  for(int v:E[u])
  {
    if(!was[v])
    {
      dep[v]=dep[u]+1;
      DFS(v);
    }
    else if(dep[u]>dep[v])
    {
      if(dep[u]==dep[v]+1 && p) p--;
      else
      {
        if((dep[u]-dep[v])%2==0) odd[u]++,odd[v]--,all_odd++;
        else even[u]++,even[v]--;
      }
    }
  }
}
void SubTree(int u)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

voltage.cpp: In function 'int main()':
voltage.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~
voltage.cpp:47:59: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1,u,v;i<=m;i++) scanf("%i %i",&u,&v),E[u].pb(v),E[v].pb(u);
                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 35 / 35
• Subtask 4: 45 / 45