Submission #914320

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
914320	2024-01-21 15:50:38	Ninedesu	Dreaming (IOI13_dreaming)	C++14	0 / 100	37 ms	15952 KiB

dreaming

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#include "dreaming.h"
#include<bits/stdc++.h>
#define ll long long
#define pii pair<ll,int>
using namespace std;
const int N=1e5+1;
int compo;
ll a,adis,b,bdis,c,cdis;
ll dis[N];
bool chk;
bitset<N>vis;
vector<pii>adj[N];
void dfs1(int u,int p,bool boo){
    vis[u]=true;
    if(!boo&&dis[u]>adis){
        a=u;
        adis=dis[u];
    }
    else if(boo&&dis[u]>bdis){
        b=u;
        bdis=dis[u];
    }
    for(pii wv:adj[u]){
        ll w=wv.first;
        int v=wv.second;
        if(v==p)continue;
        dis[v]=dis[u]+w;
        dfs1(v,u,boo);
 
 
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