제출 #685519

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
685519	2023-01-24 13:09:26	speedyArda	Birthday gift (IZhO18_treearray)	C++14	0 / 100	3 ms	5040 KiB

treearray

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#include "bits/stdc++.h"
using namespace std;
const int MAXN = 2e5+5;
int seglca[MAXN * 4], segans[MAXN * 4], in[MAXN], out[MAXN], height[MAXN], seq[MAXN];
vector<int> euler;
vector< vector<int> > adj(MAXN);
void dfs(int v, int p, int h)
{
    in[v] = euler.size();
    euler.push_back(v);
    height[v] = h;
    for(int e : adj[v])
    {
        if(e == p)
            continue;
        dfs(e, v, h + 1);
        euler.push_back(v);
    }
    out[v] = euler.size() - 1;
}
void buildlca(int v, int tl, int tr)
{
    if(tl == tr)
    {
        seglca[v] = euler[tl];
        //cout << v << " " << tl << " " << tr << " " << seglca[v] << "\n";
        return;
    }
 
 
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