Submission #378912

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
378912	2021-03-17 07:26:16	casperwang	Birthday gift (IZhO18_treearray)	C++14	100 / 100	1151 ms	79596 KiB

treearray

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#include <bits/stdc++.h>
#define All(x) x.begin(), x.end()
#define pb emplace_back
#define pii pair<int,int>
#define ff first
#define ss second
using namespace std;
#define debug(args...) kout("[ " + string(#args) + " ]", args)
void kout() { cerr << endl; }
template <class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ',kout(b...); }
template <class T> void pary(T L, T R) { while (L != R) cerr << *L << " \n"[++L==R]; }
const int MAXN = 200000;
const int L = 20;
int N, M, Q;
int a, b, c;
vector <int> path[MAXN+1];
int anc[MAXN+1][L];
pii dfs[MAXN+1];
int cnt;
int v[MAXN*2+1];
set <int> pos[MAXN+1];
int typ;
void DFS(int now, int par) {
  dfs[now].ff = ++cnt;
  for (int i : path[now]) {
    if (i == par) continue;
    anc[i][0] = now;
    DFS(i, now);
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 26 / 26
• Subtask 4: 44 / 44