Submission #566710

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
566710	2022-05-22 17:43:17	SSRS	Factories (JOI14_factories)	C++14	100 / 100	3092 ms	115148 KiB

factories

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#include <bits/stdc++.h>
#include "factories.h"
using namespace std;
const long long INF = 1000000000000000;
struct heavy_light_decomposition{
  vector<int> p, sz, in, next;
  vector<long long> d;
  heavy_light_decomposition(){
  }
  heavy_light_decomposition(vector<int> &p, vector<vector<int>> &c, vector<long long> &d): p(p), d(d){
    int N = p.size();
    sz = vector<int>(N, 1);
    dfs1(c);
    in = vector<int>(N);
    next = vector<int>(N, 0);
    int t = 0;
    dfs2(c, t);
  }
  void dfs1(vector<vector<int>> &c, int v = 0){
    for (int &w : c[v]){
      dfs1(c, w);
      sz[v] += sz[w];
      if (sz[w] > sz[c[v][0]]){
        swap(w, c[v][0]);
      }
    }
  }
  void dfs2(vector<vector<int>> &c, int &t, int v = 0){
    in[v] = t;
    t++;
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67