Submission #488593

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
488593	2021-11-19 17:58:30	JovanB	Magic Tree (CEOI19_magictree)	C++17	100 / 100	239 ms	36188 KiB

magictree

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
const int N = 100000;
map <int, ll> q[N+5];
int gde[N+5];
int t[N+5], val[N+5];
vector <int> graf[N+5];
void dfs(int v){
    int mx = 0;
    for(auto c : graf[v]){
        dfs(c);
        if(!mx || q[gde[c]].size() > q[gde[mx]].size()) mx = c;
    }
    if(!mx){
        gde[v] = v;
        if(val[v]) q[v][t[v]] += val[v];
        return;
    }
    gde[v] = gde[mx];
    for(auto c : graf[v]){
        if(c == mx) continue;
        for(auto h : q[gde[c]]) q[gde[v]][h.first] += h.second;
    }
 
 
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