Submission #1085296

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1085296	2024-09-07 21:52:06	an22inkle	Connecting Supertrees (IOI20_supertrees)	C++17	46 / 100	143 ms	24400 KiB

supertrees

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#include<bits/stdc++.h>
#include "supertrees.h"
using pair = std::array<int, 2>;
using ll = long long;
void adjlist(std::vector<std::vector<int>> p) {
  int n = p.size();
  for (int i = 0; i < n; i++) {
    for (int j = i + 1; j < n; j++) {
      if (p[i][j]) std::cout << i << ' ' << j << '\n';
    }
  }
  std::cout << '\n';
}
int construct(std::vector<std::vector<int>> p) {
  int n = p.size();
  std::vector<std::vector<int>> ans(n, std::vector<int>(n)), groups;
  std::vector<int> part(n, -1);
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (i == j || p[i][j] == 0) continue;
  
      if (part[i] > -1 && part[j] > -1) {
        if (part[i] != part[j]) return 0;
        continue;
      }
      if (part[i] > -1) groups[part[i]].push_back(j), part[j] = part[i];
 
 
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Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:66:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   for (int i = 1; i <= o.size(); i++) {
      |                   ~~^~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 0 / 10
• Subtask 3: 0 / 19
• Subtask 4: 35 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4