Submission #794223

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
794223	2023-07-26 11:05:49	mrwang	Election Campaign (JOI15_election_campaign)	C++14	100 / 100	179 ms	48180 KiB

election_campaign

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#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e5;
const ll inf=1e18;
const ll mod=1e9+7;
ll P[maxN][18];
ll h[maxN],in[maxN],out[maxN];
ll lca(ll u,ll v)
{
    if(h[u]<h[v]) swap(u,v);
    for(int i=17;i>=0;i--) if(h[u]-(1<<i)>=h[v]) u=P[u][i];
    if(u==v) return u;
    for(int i=17;i>=0;i--) if(P[u][i]!=P[v][i]) u=P[u][i],v=P[v][i];
    return P[u][0];
}
vector<ll>g[maxN];
ll tg=0;
void dfs(ll u,ll p)
{
    P[u][0]=p;in[u]=++tg;
    for(int i=1;i<=17;i++) P[u][i]=P[P[u][i-1]][i-1];
    for(int v:g[u])
    {
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 30 / 30
• Subtask 5: 10 / 10
• Subtask 6: 40 / 40