Submission #646272

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
646272	2022-09-29 11:18:32	Pety	Magic Tree (CEOI19_magictree)	C++14	100 / 100	136 ms	36028 KiB

magictree

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#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll INF = 1e9;
const ll MOD = 1e9 + 9;
ll n, m, w[100002], d[100002], k;
vector<ll>G[100002];
map<ll, ll>aib[100002];
void dfs (ll nod) {
  for (auto it : G[nod]) {
    dfs(it);
    if (aib[nod].size() < aib[it].size())
      swap(aib[nod], aib[it]);
    for (auto it2 : aib[it])
      aib[nod][it2.first] += it2.second;
  }
  if (w[nod]) {
    aib[nod][d[nod]] += w[nod]; 
    ll x = 0;
    while (1) {
      auto it = aib[nod].upper_bound(d[nod]);
      if (it == aib[nod].end())
        break;
      if (it->second <= w[nod] - x) {
 
 
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