parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:8:32: error: no matching function for call to 'std::vector<std::pair<int, int> >::vector(std::vector<int>&)'
8 | vector<pair<int,int>> arr(x);
| ^
In file included from /usr/include/c++/10/vector:67,
from parks.h:1,
from parks.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:653:2: note: candidate: 'template<class _InputIterator, class> std::vector<_Tp, _Alloc>::vector(_InputIterator, _InputIterator, const allocator_type&) [with _InputIterator = _InputIterator; <template-parameter-2-2> = <template-parameter-1-2>; _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >]'
653 | vector(_InputIterator __first, _InputIterator __last,
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:653:2: note: template argument deduction/substitution failed:
parks.cpp:8:32: note: candidate expects 3 arguments, 1 provided
8 | vector<pair<int,int>> arr(x);
| ^
In file included from /usr/include/c++/10/vector:67,
from parks.h:1,
from parks.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:625:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::initializer_list<_Tp>, const allocator_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >]'
625 | vector(initializer_list<value_type> __l,
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:625:43: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::initializer_list<std::pair<int, int> >'
625 | vector(initializer_list<value_type> __l,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:607:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >]'
607 | vector(vector&& __rv, const allocator_type& __m)
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:607:7: note: candidate expects 2 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:589:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&, std::false_type) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >; std::false_type = std::integral_constant<bool, false>]'
589 | vector(vector&& __rv, const allocator_type& __m, false_type)
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:589:7: note: candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:585:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&, std::true_type) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >; std::true_type = std::integral_constant<bool, true>]'
585 | vector(vector&& __rv, const allocator_type& __m, true_type) noexcept
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:585:7: note: candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:575:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&, const allocator_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >]'
575 | vector(const vector& __x, const allocator_type& __a)
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:575:7: note: candidate expects 2 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:572:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >]'
572 | vector(vector&&) noexcept = default;
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:572:14: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<std::pair<int, int> >&&'
572 | vector(vector&&) noexcept = default;
| ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:553:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >]'
553 | vector(const vector& __x)
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:553:28: note: no known conversion for argument 1 from 'std::vector<int>' to 'const std::vector<std::pair<int, int> >&'
553 | vector(const vector& __x)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:522:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::value_type = std::pair<int, int>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >]'
522 | vector(size_type __n, const value_type& __value,
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:522:7: note: candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:510:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const allocator_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::size_type = long unsigned int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >]'
510 | vector(size_type __n, const allocator_type& __a = allocator_type())
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:510:24: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'}
510 | vector(size_type __n, const allocator_type& __a = allocator_type())
| ~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:497:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector(const allocator_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::pair<int, int> >]'
497 | vector(const allocator_type& __a) _GLIBCXX_NOEXCEPT
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:497:36: note: no known conversion for argument 1 from 'std::vector<int>' to 'const allocator_type&' {aka 'const std::allocator<std::pair<int, int> >&'}
497 | vector(const allocator_type& __a) _GLIBCXX_NOEXCEPT
| ~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:487:7: note: candidate: 'std::vector<_Tp, _Alloc>::vector() [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >]'
487 | vector() = default;
| ^~~~~~
/usr/include/c++/10/bits/stl_vector.h:487:7: note: candidate expects 0 arguments, 1 provided
parks.cpp:16:10: warning: unused variable 'f' [-Wunused-variable]
16 | bool f=1;
| ^