Submission #477111

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
477111	2021-09-30 14:49:45	Jasiekstrz	Pipes (BOI13_pipes)	C++17	100 / 100	209 ms	23092 KiB

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#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=1e5,M=5e5;
int val[N+10];
vector<pair<int,int>> e[N+10];
bool vis[N+10];
bool on_c[N+10];
vector<int> stck;
int ans[M+10];
int pref[N+10];
int ss=0;
void on_cycle(int x)
{
  vis[x]=true;
  stck.push_back(x);
  for(auto v:e[x])
  {
    if(!vis[v.fi])
      on_cycle(v.fi);
    else if(!on_c[x] && stck.size()>=2 && stck[stck.size()-2]!=v.fi)
    {
      for(size_t i=stck.size()-1;stck[i]!=v.fi;i--)
        on_c[stck[i]]=true;
      on_c[v.fi]=true;
    }
  }
  stck.pop_back();
}
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 70 / 70