Main.cc:8:10: error: ‘node’ was not declared in this scope
bool cmp(node a,node b){
^~~~
Main.cc:8:10: note: suggested alternative: ‘modf’
bool cmp(node a,node b){
^~~~
modf
Main.cc:8:17: error: ‘node’ was not declared in this scope
bool cmp(node a,node b){
^~~~
Main.cc:8:17: note: suggested alternative: ‘modf’
bool cmp(node a,node b){
^~~~
modf
Main.cc:8:23: error: expression list treated as compound expression in initializer [-fpermissive]
bool cmp(node a,node b){
^
Main.cc: In function ‘int main()’:
Main.cc:19:9: error: expected primary-expression before ‘[’ token
cout<::operator()(_Iterator1, _Iterator2) [with _Iterator1 = s*; _Iterator2 = s*; _Compare = bool]’:
/usr/include/c++/7/bits/stl_algo.h:1847:14: required from ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1885:25: required from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1971:31: required from ‘void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:4868:18: required from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = s*; _Compare = bool]’
Main.cc:18:20: required from here
/usr/include/c++/7/bits/predefined_ops.h:143:18: error: expression cannot be used as a function
{ return bool(_M_comp(*__it1, *__it2)); }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/predefined_ops.h: In instantiation of ‘bool __gnu_cxx::__ops::_Val_comp_iter<_Compare>::operator()(_Value&, _Iterator) [with _Value = s; _Iterator = s*; _Compare = bool]’:
/usr/include/c++/7/bits/stl_algo.h:1828:20: required from ‘void std::__unguarded_linear_insert(_RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Val_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1855:36: required from ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1885:25: required from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1971:31: required from ‘void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:4868:18: required from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = s*; _Compare = bool]’
Main.cc:18:20: required from here
/usr/include/c++/7/bits/predefined_ops.h:215:11: error: expression cannot be used as a function
{ return bool(_M_comp(__val, *__it)); }
^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/predefined_ops.h: In instantiation of ‘bool __gnu_cxx::__ops::_Iter_comp_val<_Compare>::operator()(_Iterator, _Value&) [with _Iterator = s*; _Value = s; _Compare = bool]’:
/usr/include/c++/7/bits/stl_heap.h:133:48: required from ‘void std::__push_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare&) [with _RandomAccessIterator = s*; _Distance = long int; _Tp = s; _Compare = __gnu_cxx::__ops::_Iter_comp_val]’
/usr/include/c++/7/bits/stl_heap.h:237:23: required from ‘void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = s*; _Distance = long int; _Tp = s; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_heap.h:342:22: required from ‘void std::__make_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare&) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1672:23: required from ‘void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1933:25: required from ‘void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1948:27: required from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = s*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:1968:25: required from ‘void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = s*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter]’
/usr/include/c++/7/bits/stl_algo.h:4868:18: required from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = s*; _Compare = bool]’
Main.cc:18:20: required from here
/usr/include/c++/7/bits/predefined_ops.h:177:11: error: expression cannot be used as a function
{ return bool(_M_comp(*__it, __val)); }
^~~~~~~~~~~~~~~~~~~~~~~~~~~