Submission #306062

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
306062	2020-09-24 12:18:33	eriksuenderhauf	Stations (IOI20_stations)	C++17	0 / 100	918 ms	768 KiB

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
  vector<int> deg(n);
  vector<vector<int>> adj(n);
  for (int i = 0; i < n - 1; i++)
    deg[u[i]]++, deg[v[i]]++, adj[u[i]].push_back(v[i]), adj[v[i]].push_back(u[i]);;
  vector<int> labels(n);
  // if (*max_element(deg.begin(), deg.end()) <= 2) {
  //   int r = min_element(deg.begin(), deg.end()) - deg.begin(), p = -1;
  //   labels[r] = 0;
  //   for (int i = 1; i < n; i++) {
  //     if (~p) adj[r].erase(find(adj[r].begin(), adj[r].end(), p));
  //     tie(r, p) = make_pair(adj[r][0], r);
  //     labels[r] = i;
  //   }
  // iota(labels.begin(), labels.end(), 0);
  // function<void(int,int,int)> dfs = [&](int u, int p, int l) {
  //   labels[u] = l;
  //   adj[u].erase(find(adj[u].begin(), adj[u].end(), p));
  //   if (!adj[u].empty())
  //     dfs(adj[u][0], u, l+1);
  // };
  // int r = max_element(deg.begin(), deg.end()) - deg.begin();
  // int lo = 1; labels[r] = 0;
  // for (int v: adj[r]) {
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61