Submission #846570

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
846570	2023-09-08 00:03:28	dlalswp25	Beech Tree (IOI23_beechtree)	C++17	18 / 100	2007 ms	30148 KiB

beechtree

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#include "beechtree.h"
#include <bits/stdc++.h>
using namespace std;
typedef tuple<int, int, int> piii;
int N, M;
vector<int> adj[202020];
vector<int> P, C;
int cnt[202020];
int idx[202020];
vector<int> V;
int D[202020];
int deg[202020];
void dfs(int v) {
    V.push_back(v);
    for (int i : adj[v]) dfs(i);
}
bool solve(int rt) {
    for (int i = 1; i <= M; i++) cnt[i] = 0;
    V.clear();
    dfs(rt);
    for (int i : V) {
        D[i] = 0;
        deg[i] = adj[i].size();
    }
    {
 
 
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