Submission #1162926

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1162926	2025-03-07 03:44:02	brinton	Road Closures (APIO21_roads)	C++20	17 / 100	47 ms	15940 KiB

roads

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#include "roads.h"
#include <bits/stdc++.h>
using namespace std;
int k;
vector<long long> minimum_closure_costs(int N, vector<int> U,vector<int> V,vector<int> W) {
  // N^2 solution
  vector<vector<pair<int,int>>> edges;
  vector<long long> ans(N,0);
  edges.resize(N);
  for(int i = 0;i < N-1;i++){
    edges[U[i]].push_back({V[i],W[i]});
    edges[V[i]].push_back({U[i],W[i]});
  }
  vector<int> sv(N);
  iota(sv.begin(),sv.end(),0);
  sort(sv.begin(),sv.end(),[&](auto a,auto b){
    return edges[a].size() > edges[b].size();
  });
  for(auto &i:edges){
    sort(i.begin(),i.end(),[&](auto a,auto b){
      return edges[a.first].size() > edges[b.first].size();
    });
  }
  // for(auto i:edges){
  //   for(auto j:i)cout << j.first << " ";cout << endl;
  // }cout << endl;
  ans[0] = N-1;
  vector<bool> vis(N,true);
  vector<int> deg(N);
 
 
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• Subtask 2: 0 / 7
• Subtask 3: 0 / 14
• Subtask 4: 0 / 10
• Subtask 5: 17 / 17
• Subtask 6: 0 / 25
• Subtask 7: 0 / 22