# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1201548 | mr_junk | Swapping Cities (APIO20_swap) | C++17 | Compilation error | 0 ms | 0 KiB |
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
int const N=1e6;
vector<pair<int,int>> g[N];
int used[N];
int mx,check;
void dfs(int v,int pr){
if (check){
return;
}
used[v]=1;
for(auto it : g[v]){
if (it==pr)continue;
if (used[it.first]==1){
check=true;
}else{
dfs(it.first);
}
}used[v]=2;
}
void init(int N, int M,
std::vector<int> U, std::vector<int> V, std::vector<int> W) {
for(int i=0;i<M;i++){
g[U[i]].push_back({V[i],W[i]});
g[V[i]].push_back({U[i],W[i]});
mx=max(mx,W[i]);
}dfs(1,1);
}int getMinimumFuelCapacity(int X, int Y) {
if (check)return mx;
return -1;
}
Compilation message (stderr)
swap.cpp: In function 'void dfs(int, int)': swap.cpp:14:17: error: no match for 'operator==' (operand types are 'std::pair<int, int>' and 'int') 14 | if (it==pr)continue; | ~~^~~~ | | | | | int | std::pair<int, int> In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1059:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)' 1059 | operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1059:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1155:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)' 1155 | operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1155:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1230:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)' 1230 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1230:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1322:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)' 1322 | operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1322:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1397:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)' 1397 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1397:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1490:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)' 1490 | operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1490:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:1569:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)' 1569 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1569:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from swap.cpp:2: /usr/include/c++/11/bits/regex.h:2125:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const std::__cxx11::match_results<_BiIter, _Alloc>&, const std::__cxx11::match_results<_BiIter, _Alloc>&)' 2125 | operator==(const match_results<_Bi_iter, _Alloc>& __m1, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:2125:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/stl_algobase.h:64, from /usr/include/c++/11/vector:60, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/stl_pair.h:466:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)' 466 | operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_pair.h:466:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::pair<_T1, _T2>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/vector:60, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:420:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)' 420 | operator==(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:420:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/vector:60, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:459:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)' 459 | operator==(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:459:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/vector:60, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1585:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)' 1585 | operator==(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1585:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::move_iterator<_IteratorL>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/vector:60, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1648:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)' 1648 | operator==(const move_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1648:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::move_iterator<_IteratorL>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/vector:64, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/allocator.h:218:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_T2>&)' 218 | operator==(const allocator<_T1>&, const allocator<_T2>&) | ^~~~~~~~ /usr/include/c++/11/bits/allocator.h:218:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::allocator<_Tp1>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/vector:67, from swap.h:1, from swap.cpp:1: /usr/include/c++/11/bits/stl_vector.h:1892:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)' 1892 | operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_vector.h:1892:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::vector<_Tp, _Alloc>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/iosfwd:40, from /usr/include/c++/11/ios:38, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/bits/postypes.h:222:5: note: candidate: 'template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)' 222 | operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/postypes.h:222:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::fpos<_StateT>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/string_view:535:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)' 535 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:535:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/string_view:541:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)' 541 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:541:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/string_view:564:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)' 564 | operator==(__type_identity_t<basic_string_view<_CharT, _Traits>> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:564:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/bits/basic_string.h:6226:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)' 6226 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6226:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/bits/basic_string.h:6234:5: note: candidate: 'template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)' 6234 | operator==(const basic_string<_CharT>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6234:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/bits/basic_string.h:6248:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)' 6248 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6248:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/bits/basic_string.h:6289:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)' 6289 | operator==(const _CharT* __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6289:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const _CharT*' and 'std::pair<int, int>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/locale_facets.h:48, from /usr/include/c++/11/bits/basic_ios.h:37, from /usr/include/c++/11/ios:44, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/bits/streambuf_iterator.h:226:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)' 226 | operator==(const istreambuf_iterator<_CharT, _Traits>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/streambuf_iterator.h:226:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/complex:464:5: note: candidate: 'template<class _Tp> constexpr bool std::operator==(const std::complex<_Tp>&, const std::complex<_Tp>&)' 464 | operator==(const complex<_Tp>& __x, const complex<_Tp>& __y) | ^~~~~~~~ /usr/include/c++/11/complex:464:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::complex<_Tp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/complex:469:5: note: candidate: 'template<class _Tp> constexpr bool std::operator==(const std::complex<_Tp>&, const _Tp&)' 469 | operator==(const complex<_Tp>& __x, const _Tp& __y) | ^~~~~~~~ /usr/include/c++/11/complex:469:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::complex<_Tp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from swap.cpp:2: /usr/include/c++/11/complex:475:5: note: candidate: 'template<class _Tp> constexpr bool std::operator==(const _Tp&, const std::complex<_Tp>&)' 475 | operator==(const _Tp& __x, const complex<_Tp>& __y) | ^~~~~~~~ /usr/include/c++/11/complex:475:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::complex<_Tp>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/tuple:39, from /usr/include/c++/11/functional:54, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65, from swap.cpp:2: /usr/include/c++/11/array:276:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> bool std::operator==(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)' 276 | operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) | ^~~~~~~~ /usr/include/c++/11/array:276:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::array<_Tp, _Nm>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/functional:54, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65, from swap.cpp:2: /usr/include/c++/11/tuple:1524:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const std::tuple<_Tps ...>&, const std::tuple<_UTypes ...>&)' 1524 | operator==(const tuple<_TElements...>& __t, | ^~~~~~~~ /usr/include/c++/11/tuple:1524:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::tuple<_Tps ...>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/functional:59, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65, from swap.cpp:2: /usr/include/c++/11/bits/std_function.h:718:5: note: candidate: 'template<class _Res, class ... _Args> bool std::operator==(const std::function<_Res(_ArgTypes ...)>&, std::nullptr_t)' 718 | operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/std_function.h:718:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::function<_Res(_ArgTypes ...)>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/functional:59, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65, from swap.cpp:2: /usr/include/c++/11/bits/std_function.h:725:5: note: candidate: 'template<class _Res, class ... _Args> bool std::operator==(std::nullptr_t, const std::function<_Res(_ArgTypes ...)>&)' 725 | operator==(nullptr_t, const function<_Res(_Args...)>& __f) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/std_function.h:725:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::function<_Res(_ArgTypes ...)>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/unordered_map:47, from /usr/include/c++/11/functional:61, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65, from swap.cpp:2: /usr/include/c++/11/bits/unordered_map.h:2134:5: note: candidate: 'template<class _Key1, class _Tp1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)' 2134 | operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_map.h:2134:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/unordered_map:47, from /usr/include/c++/11/functional:61, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65, from swap.cpp:2: /usr/include/c++/11/bits/unordered_map.h:2148:5: note: candidate: 'template<class _Key1, class _Tp1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)' 2148 | operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_map.h:2148:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/deque:67, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:68, from swap.cpp:2: /usr/include/c++/11/bits/stl_deque.h:2247:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)' 2247 | operator==(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_deque.h:2247:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::deque<_Tp, _Alloc>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72, from swap.cpp:2: /usr/include/c++/11/bits/unique_ptr.h:753:5: note: candidate: 'template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)' 753 | operator==(const unique_ptr<_Tp, _Dp>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:753:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::unique_ptr<_Tp, _Dp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72, from swap.cpp:2: /usr/include/c++/11/bits/unique_ptr.h:760:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)' 760 | operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:760:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::unique_ptr<_Tp, _Dp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72, from swap.cpp:2: /usr/include/c++/11/bits/unique_ptr.h:767:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator==(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)' 767 | operator==(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:767:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::unique_ptr<_Tp, _Dp>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/list:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:79, from swap.cpp:2: /usr/include/c++/11/bits/stl_list.h:2030:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)' 2030 | operator==(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_list.h:2030:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::list<_Tp, _Alloc>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/map:61, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81, from swap.cpp:2: /usr/include/c++/11/bits/stl_map.h:1463:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::map<_Key, _Tp, _Compare, _Allocator>&, const std::map<_Key, _Tp, _Compare, _Allocator>&)' 1463 | operator==(const map<_Key, _Tp, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_map.h:1463:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::map<_Key, _Tp, _Compare, _Allocator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/map:62, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81, from swap.cpp:2: /usr/include/c++/11/bits/stl_multimap.h:1128:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::multimap<_Key, _Tp, _Compare, _Allocator>&, const std::multimap<_Key, _Tp, _Compare, _Allocator>&)' 1128 | operator==(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_multimap.h:1128:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Allocator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from swap.cpp:2: /usr/include/c++/11/bits/shared_ptr_base.h:1410:5: note: candidate: 'template<class _Tp1, class _Tp2, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)' 1410 | operator==(const __shared_ptr<_Tp1, _Lp>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1410:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__shared_ptr<_Tp1, _Lp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from swap.cpp:2: /usr/include/c++/11/bits/shared_ptr_base.h:1416:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)' 1416 | operator==(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1416:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::__shared_ptr<_Tp, _Lp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from swap.cpp:2: /usr/include/c++/11/bits/shared_ptr_base.h:1436:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(std::nullptr_t, const std::__shared_ptr<_Tp, _Lp>&)' 1436 | operator==(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1436:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::__shared_ptr<_Tp, _Lp>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from swap.cpp:2: /usr/include/c++/11/bits/shared_ptr.h:437:5: note: candidate: 'template<class _Tp, class _Up> bool std::operator==(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Tp>&)' 437 | operator==(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:437:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::shared_ptr<_Tp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from swap.cpp:2: /usr/include/c++/11/bits/shared_ptr.h:443:5: note: candidate: 'template<class _Tp> bool std::operator==(const std::shared_ptr<_Tp>&, std::nullptr_t)' 443 | operator==(const shared_ptr<_Tp>& __a, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:443:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::shared_ptr<_Tp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from swap.cpp:2: /usr/include/c++/11/bits/shared_ptr.h:464:5: note: candidate: 'template<class _Tp> bool std::operator==(std::nullptr_t, const std::shared_ptr<_Tp>&)' 464 | operator==(nullptr_t, const shared_ptr<_Tp>& __a) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:464:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::shared_ptr<_Tp>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/queue:64, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:86, from swap.cpp:2: /usr/include/c++/11/bits/stl_queue.h:344:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator==(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)' 344 | operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_queue.h:344:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::queue<_Tp, _Seq>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/set:61, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87, from swap.cpp:2: /usr/include/c++/11/bits/stl_set.h:985:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::set<_Key, _Compare, _Allocator>&, const std::set<_Key, _Compare, _Allocator>&)' 985 | operator==(const set<_Key, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_set.h:985:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::set<_Key, _Compare, _Allocator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/set:62, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87, from swap.cpp:2: /usr/include/c++/11/bits/stl_multiset.h:971:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::multiset<_Key, _Compare, _Allocator>&, const std::multiset<_Key, _Compare, _Allocator>&)' 971 | operator==(const multiset<_Key, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_multiset.h:971:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::multiset<_Key, _Compare, _Allocator>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/stack:61, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:89, from swap.cpp:2: /usr/include/c++/11/bits/stl_stack.h:319:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator==(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)' 319 | operator==(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_stack.h:319:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::stack<_Tp, _Seq>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)' 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)' 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)' 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)' 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)' 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/valarray:1198:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const std::valarray<_Tp>&)' 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::valarray<_Tp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/valarray:1198:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)' 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::valarray<_Tp>' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from swap.cpp:2: /usr/include/c++/11/valarray:1198:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)' 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: swap.cpp:14:19: note: mismatched types 'const std::valarray<_Tp>' and 'int' 14 | if (it==pr)continue; | ^~ In file included from /usr/include/c++/11/forward_list:40, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:104, from swap.cpp:2: /usr/include/c++/11/bits/forward_list.tcc:393:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)' 393 | operator==(const forward_list<_Tp, _Alloc>& __lx, | ^~~~~~~~ /usr/include/c++/11/bits/forward_list.tcc:393:5: note: template argument deduction/substitution failed: swap.cpp:14:19: note: 'std::pair<int, int>' is not derived from 'const std::forward_list<_Tp, _Alloc>' 14 | if (it==pr)continue; |