Submission #441923

#	Time	Username	Problem	Language	Result	Execution time	Memory
441923		PiejanVDC	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

supertrees

#include "supertrees.h" #include <bits/stdc++.h> using namespace std; int construct(vector<vector<int>> p) { int n = p.size(); vector<vector<int>>v(n,vector<int>(n,0)); for(int i = 0 ; i < n-1 ; i++) { for(int j = i+1 ; j < n ; j++) { if(p[i][j]) { bool ok=true; stack<pair<int,int>>s; s.push({i,-1}); while(!s.empty()) { if(s.top().first == j) ok=false; break; for(int k = 0 ; k < n ; k++) { if(k==s.top().first||k==s.top().second) continue; if(v[s.top()][k]) { s.push(k); } } } if(ok) { v[i][j]=1,v[j][i]=1; } } } } for(int i = 0 ; i < n ; i++) { for(int j = i+1 ; j < n ; j++) { if(!p[i][j]) { bool ok=true; stack<pair<int,int>>s; s.push({i,-1}); while(!s.empty()) { if(s.top().first == j) ok=false; break; for(int k = 0 ; k < n ; k++) { if(k==s.top().first||k==s.top().second) continue; if(v[s.top()][k]) { s.push(k); } } } if(!ok) { return 0; } } } } build(v); return 1; }

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:15:21: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   15 |                     if(s.top().first == j)
      |                     ^~
supertrees.cpp:16:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   16 |                         ok=false; break;
      |                                   ^~~~~
supertrees.cpp:19:29: error: no match for 'operator[]' (operand types are 'std::vector<std::vector<int> >' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'})
   19 |                         if(v[s.top()][k]) {
      |                             ^
In file included from /usr/include/c++/10/vector:67,
                 from supertrees.h:1,
                 from supertrees.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1043:7: note: candidate: 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; std::vector<_Tp, _Alloc>::reference = std::vector<int>&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
 1043 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1043:28: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} to 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'}
 1043 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |                  ~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1061:7: note: candidate: 'std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) const [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; std::vector<_Tp, _Alloc>::const_reference = const std::vector<int>&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
 1061 |       operator[](size_type __n) const _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1061:28: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} to 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'}
 1061 |       operator[](size_type __n) const _GLIBCXX_NOEXCEPT
      |                  ~~~~~~~~~~^~~
supertrees.cpp:20:37: error: no matching function for call to 'std::stack<std::pair<int, int> >::push(int&)'
   20 |                             s.push(k);
      |                                     ^
In file included from /usr/include/c++/10/stack:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:89,
                 from supertrees.cpp:2:
/usr/include/c++/10/bits/stl_stack.h:239:7: note: candidate: 'void std::stack<_Tp, _Sequence>::push(const value_type&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::stack<_Tp, _Sequence>::value_type = std::pair<int, int>]'
  239 |       push(const value_type& __x)
      |       ^~~~
/usr/include/c++/10/bits/stl_stack.h:239:30: note:   no known conversion for argument 1 from 'int' to 'const value_type&' {aka 'const std::pair<int, int>&'}
  239 |       push(const value_type& __x)
      |            ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_stack.h:244:7: note: candidate: 'void std::stack<_Tp, _Sequence>::push(std::stack<_Tp, _Sequence>::value_type&&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::stack<_Tp, _Sequence>::value_type = std::pair<int, int>]'
  244 |       push(value_type&& __x)
      |       ^~~~
/usr/include/c++/10/bits/stl_stack.h:244:25: note:   no known conversion for argument 1 from 'int' to 'std::stack<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'}
  244 |       push(value_type&& __x)
      |            ~~~~~~~~~~~~~^~~
supertrees.cpp:37:21: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   37 |                     if(s.top().first == j)
      |                     ^~
supertrees.cpp:38:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   38 |                         ok=false; break;
      |                                   ^~~~~
supertrees.cpp:41:29: error: no match for 'operator[]' (operand types are 'std::vector<std::vector<int> >' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'})
   41 |                         if(v[s.top()][k]) {
      |                             ^
In file included from /usr/include/c++/10/vector:67,
                 from supertrees.h:1,
                 from supertrees.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1043:7: note: candidate: 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; std::vector<_Tp, _Alloc>::reference = std::vector<int>&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
 1043 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1043:28: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} to 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'}
 1043 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |                  ~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1061:7: note: candidate: 'std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) const [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; std::vector<_Tp, _Alloc>::const_reference = const std::vector<int>&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
 1061 |       operator[](size_type __n) const _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1061:28: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} to 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'}
 1061 |       operator[](size_type __n) const _GLIBCXX_NOEXCEPT
      |                  ~~~~~~~~~~^~~
supertrees.cpp:42:37: error: no matching function for call to 'std::stack<std::pair<int, int> >::push(int&)'
   42 |                             s.push(k);
      |                                     ^
In file included from /usr/include/c++/10/stack:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:89,
                 from supertrees.cpp:2:
/usr/include/c++/10/bits/stl_stack.h:239:7: note: candidate: 'void std::stack<_Tp, _Sequence>::push(const value_type&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::stack<_Tp, _Sequence>::value_type = std::pair<int, int>]'
  239 |       push(const value_type& __x)
      |       ^~~~
/usr/include/c++/10/bits/stl_stack.h:239:30: note:   no known conversion for argument 1 from 'int' to 'const value_type&' {aka 'const std::pair<int, int>&'}
  239 |       push(const value_type& __x)
      |            ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_stack.h:244:7: note: candidate: 'void std::stack<_Tp, _Sequence>::push(std::stack<_Tp, _Sequence>::value_type&&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::stack<_Tp, _Sequence>::value_type = std::pair<int, int>]'
  244 |       push(value_type&& __x)
      |       ^~~~
/usr/include/c++/10/bits/stl_stack.h:244:25: note:   no known conversion for argument 1 from 'int' to 'std::stack<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'}
  244 |       push(value_type&& __x)
      |            ~~~~~~~~~~~~~^~~