Submission #696368

#TimeUsernameProblemLanguageResultExecution timeMemory
696368T0p_Connecting Supertrees (IOI20_supertrees)C++14
Compilation error
0 ms0 KiB
// Subtask 2 #include "supertrees.h" #include <bits/stdc++.h> using namespace std; const int N = 1000; bool visited[N]; int construct(vector<vector<int>> p) { int n = p.size(); vector<vector<int>> ans(n, vector<int> (n, 0)); vector<int> connectedList(n); for (int i=0 ; i<n ; i++) for (int j=0 ; j<n ; j++) if (p[i][j] == 1) connectedList[i].push_back(j); for (int i=0 ; i<n ; i++) for (int j=0 ; j<n ; j++) if (p[i][j] == 1 && connectedList[i] != connectedList[j]) return 0; for (int i=0 ; i<n ; i++) if (!visited[i]) { visited[i] = true; for (int j=i+1 ; j<n ; j++) if (p[i][j] == 1) { visited[j] = true; ans[i][j] = ans[j][i] = 1; } } build(ans); return 1; }

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:17:89: error: request for member 'push_back' in 'connectedList.std::vector<int>::operator[](((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'}
   17 |  for (int i=0 ; i<n ; i++) for (int j=0 ; j<n ; j++) if (p[i][j] == 1) connectedList[i].push_back(j);
      |                                                                                         ^~~~~~~~~