Submission #403943

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
403943	2021-05-13 15:35:29	monus1042	Connecting Supertrees (IOI20_supertrees)	C++17	21 / 100	300 ms	24052 KiB

supertrees

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#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
const int NAX = 1002;
vector<int> parent(NAX, -1);
int Find(int u){
  if (parent[u] == -1) return u;
  return parent[u] = Find(parent[u]);
}
int construct(vector<vector<int> > p) {
  int n = p.size();
  vector<vector<int> > answer;
  for (int i = 0; i < n; i++) {
    vector<int> row;
    row.resize(n);
    answer.push_back(row);
  }
  // solve:
  for (int i=0; i<n; i++){
    for (int j=0; j<n; j++){
      if (i==j) continue;
      if (p[i][j] == 1){
        int x = Find(i), y = Find(j);
        if (x!=y){
          parent[x]=y;
          answer[i][j]=answer[j][i]=1;
        }
 
 
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• Subtask 2: 10 / 10
• Subtask 3: 0 / 19
• Subtask 4: 0 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4