Submission #379835

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
379835	2021-03-19 13:12:09	huynhtrankhanh	Race (IOI11_race)	C++17	100 / 100	563 ms	48236 KiB

race

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#include <bits/stdc++.h>
using namespace std;
int best_path(int n, int k, int h[][2], int l[])
{
  const int maxn = 200001;
  const int inf = 0x3f3f3f3f;
  vector<pair<int, int>> graph[maxn];
  for (int i = 0; i < n - 1; i++)
  {
    int u = h[i][0];
    int v = h[i][1];
    int w = l[i];
    graph[u].emplace_back(v, w);
    graph[v].emplace_back(u, w);
  }
  int size[maxn];
  bool ignored[maxn];
  memset(ignored, 0, sizeof(ignored));
  auto get_centroid = [&](int root) {
    {
      auto dfs = [&](auto dfs, int vertex, int parent) -> void {
        size[vertex] = 0;
        for (auto [adjacent, _]: graph[vertex])
          if (adjacent != parent) if (!ignored[adjacent])
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57