Submission #579390

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
579390	2022-06-19 04:22:41	amunduzbaev	Magic Tree (CEOI19_magictree)	C++17	100 / 100	139 ms	35068 KiB

magictree

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#include "bits/stdc++.h"
using namespace std;
 
#define ar array
typedef int64_t ll;
#define int ll
 
const int N = 1e5 + 5;
vector<int> edges[N];
int is[N], d[N], w[N], mx[N];
map<int, int> sub[N];
 
void dfs(int u){
  mx[u] = u;
  for(auto x : edges[u]){
    dfs(x);
    if(sub[x].size() > sub[mx[u]].size()) mx[u] = x;
  }
  
  swap(sub[u], sub[mx[u]]);
  for(auto x : edges[u]){
    if(x == mx[u]) continue;
    for(auto v : sub[x]){
      sub[u][v.first] += v.second;
    }
    
    sub[x].clear();
  }
  
  if(is[u]){
 
 
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• Subtask 7: 22 / 22
• Subtask 8: 17 / 17