# | TimeUTC-0 | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
930063 | ttamx | Usmjeri (COCI17_usmjeri) | C++14 | 231 ms | 61264 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
const int N=3e5+5;
const int MOD=1e9+7;
int n,m;
vector<int> adj[N];
vector<pair<int,int>> adj2[N];
int pa[N],lv[N],sz[N],hv[N],hd[N],top[N],col[N];
int ans=1;
void dfs(int u,int p=0){
sz[u]=1;
for(auto v:adj[u])if(v!=p){
pa[v]=u;
lv[v]=lv[u]+1;
dfs(v,u);
sz[u]+=sz[v];
if(sz[v]>sz[hv[u]])hv[u]=v;
}
}
void hld(int u,int p=0){
if(!hd[u])hd[u]=u;
if(hv[u])hd[hv[u]]=hd[u],hld(hv[u],u);
for(auto v:adj[u])if(v!=p&&v!=hv[u])hld(v,u);
}
Compilation message (stderr)
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