Submission #1068845

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1068845	2024-08-21 12:31:46	bachhoangxuan	Prize (CEOI22_prize)	C++17	0 / 100	1530 ms	356672 KiB

Main

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#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e6+5;
const int maxl = 25;
int n,m,q;
struct Tree{
    int L[maxn],T,rt=-1;
    vector<int> edge[maxn];
    int dep[maxn],par[maxn][maxl];
    void dfs(int u,int p){
        par[u][0]=p,dep[u]=dep[p]+1;
        for(int i=1;i<20;i++) par[u][i]=par[par[u][i-1]][i-1];
        for(int v:edge[u]) dfs(v,u);
    }
    int lca(int u,int v){
        if(dep[u]>dep[v]) swap(u,v);
        for(int i=0;i<20;i++) if((dep[v]-dep[u])>>i&1) v=par[v][i];
        if(u==v) return u;
        for(int i=19;i>=0;i--) if(par[u][i]!=par[v][i]) u=par[u][i],v=par[v][i];
        return par[u][0];
    }
    int f[maxn],d[maxn];
    int findpar(int u){
        if(u==f[u]) return u;
        int x=f[u];f[u]=findpar(f[u]);
        d[u]+=d[x];
        return f[u];
    }
    void unions(int u,int v,int w){
 
 
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• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 19
• Subtask 4: 0 / 22
• Subtask 5: 0 / 24