Submission #400406

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
400406	2021-05-08 00:24:10	Haunted_Cpp	Factories (JOI14_factories)	C++17	100 / 100	5440 ms	333836 KiB

factories

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#include "factories.h"
#include <bits/stdc++.h>
using namespace std;
 
typedef long long i64;
 
const int MAX_N = 500000 + 5;
 
const i64 INF = 1e18;
 
vector<pair<int, int>> g[MAX_N];
vector<pair<int, i64>> par[MAX_N];
 
int sub[MAX_N], del[MAX_N];
i64 best_way[MAX_N];
 
int calc_subtree(int node, int p) {
  sub[node] = 1;
  for (auto to : g[node]) {
    if (to.first != p && !del[to.first]) {
      sub[node] += calc_subtree(to.first, node);
    }
  }
  return sub[node];
}
 
int calc_centroid(int node, int p, const int tam) {
  for (auto to : g[node]) {
    if (!del[to.first] && to.first != p && sub[to.first] > tam / 2) {
      return calc_centroid(to.first, node, tam);
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67