Submission #196966

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
196966	2020-01-17 22:33:02	mahmoudbadawy	Pipes (BOI13_pipes)	C++17	100 / 100	275 ms	29432 KiB

pipes

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#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
const int M=5e5+5;
const int N=1e5+5;
int n,m;
int ans[M],arr[N],co[N];
vector<pair<int,int> > adj[N];
int cur;
vector<pair<int,int> > adj2[M];
int vis[N];
int dfs1(int node,int p,int co,int pa)
{
  if(co==cur) return 0;
  for(auto i:adj2[node])
  {
    if(i.F==pa) continue;
    return i.S*p+dfs1(i.F,-1*p,co+1,node);
  }
}
void dfs2(int node,int co,int pa)
{
  if(co==cur) return;
  for(auto i:adj2[node])
 
 
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Compilation message (stderr)

pipes.cpp: In function 'int main()':
pipes.cpp:66:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<adj[x].size();i++)
               ~^~~~~~~~~~~~~~
pipes.cpp: In function 'int dfs1(int, int, int, int)':
pipes.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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