| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1252821 | ebrambill | Combo (IOI18_combo) | C++17 | Compilation error | 0 ms | 0 KiB |
//In the name of GOD
#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
string S, C, P, tmp="ABXY";
string guess_sequence(int n){
if(n==1){
if(press("A")) return "A";
if(press("B")) return "B";
if(press("X")) return "X";
return "Y";
}
if(press("AB")){
if(press("A")) P="A";
else P="B";
}
else if(press("X")) P="X";
else P="Y";
for (char c: tmp)
if(tmp!=P[0]) C+=c;
while(P.size()+1<n){
int cnt=press(P+C[0]+C[0]+P+C[0]+C[1]+P+C[0]+C[2]+P+C[1]);
P+=(cnt==P.size()+2 ? C[0] : (cnt==P.size()+1 ? C[1] : C[2]));
}
if(press(P+C[0])==n) P+=C[0];
else if(press(P+C[1])==n) P+=C[1];
else P+=C[2];
return P;
}
Compilation message (stderr)
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:25:23: error: no match for 'operator!=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'})
25 | if(tmp!=P[0]) C+=c;
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1088:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator!=(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
1088 | operator!=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1088:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1168:5: 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>&)'
1168 | operator!=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1168:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1261:5: 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>&)'
1261 | operator!=(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1261:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1335:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
1335 | operator!=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1335:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1429:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
1429 | operator!=(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1429:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1503:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
1503 | operator!=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1503:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:1603:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
1603 | operator!=(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1603:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from combo.cpp:3:
/usr/include/c++/11/bits/regex.h:2150:5: 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>&)'
2150 | operator!=(const match_results<_Bi_iter, _Alloc>& __m1,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:2150:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_pair.h:496:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator!=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
496 | operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:496:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::pair<_T1, _T2>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_iterator.h:432:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
432 | operator!=(const reverse_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:432:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_iterator.h:471:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
471 | operator!=(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:471:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_iterator.h:1602:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
1602 | operator!=(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1602:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_iterator.h:1661:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
1661 | operator!=(const move_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1661:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/postypes.h:227:5: note: candidate: 'template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&)'
227 | operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
| ^~~~~~~~
/usr/include/c++/11/bits/postypes.h:227:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::fpos<_StateT>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/string:41,
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 combo.cpp:3:
/usr/include/c++/11/bits/allocator.h:225:5: note: candidate: 'template<class _T1, class _T2> bool std::operator!=(const std::allocator<_CharT>&, const std::allocator<_T2>&)'
225 | operator!=(const allocator<_T1>&, const allocator<_T2>&)
| ^~~~~~~~
/usr/include/c++/11/bits/allocator.h:225:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::allocator<_CharT>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/string_view:570:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator!=(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
570 | operator!=(basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:570:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/string_view:576:5: 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> >)'
576 | operator!=(basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:576:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/string_view:583:5: 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>)'
583 | operator!=(__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:583:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'char'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/basic_string.h:6302:5: 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>&)'
6302 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6302:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/basic_string.h:6315:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6315 | operator!=(const _CharT* __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6315:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const _CharT*' and 'std::__cxx11::basic_string<char>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/basic_string.h:6327:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
6327 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6327:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const _CharT*' and 'char'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/streambuf_iterator.h:232:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator!=(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)'
232 | operator!=(const istreambuf_iterator<_CharT, _Traits>& __a,
| ^~~~~~~~
/usr/include/c++/11/bits/streambuf_iterator.h:232:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from combo.cpp:3:
/usr/include/c++/11/complex:483:5: note: candidate: 'template<class _Tp> constexpr bool std::operator!=(const std::complex<_Tp>&, const std::complex<_Tp>&)'
483 | operator!=(const complex<_Tp>& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/11/complex:483:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::complex<_Tp>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from combo.cpp:3:
/usr/include/c++/11/complex:488:5: note: candidate: 'template<class _Tp> constexpr bool std::operator!=(const std::complex<_Tp>&, const _Tp&)'
488 | operator!=(const complex<_Tp>& __x, const _Tp& __y)
| ^~~~~~~~
/usr/include/c++/11/complex:488:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::complex<_Tp>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from combo.cpp:3:
/usr/include/c++/11/complex:493:5: note: candidate: 'template<class _Tp> constexpr bool std::operator!=(const _Tp&, const std::complex<_Tp>&)'
493 | operator!=(const _Tp& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/11/complex:493:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::complex<_Tp>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/array:305:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> bool std::operator!=(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)'
305 | operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
| ^~~~~~~~
/usr/include/c++/11/array:305:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::array<_Tp, _Nm>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/tuple:1579:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator!=(const std::tuple<_Tps ...>&, const std::tuple<_UTypes ...>&)'
1579 | operator!=(const tuple<_TElements...>& __t,
| ^~~~~~~~
/usr/include/c++/11/tuple:1579:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::tuple<_Tps ...>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/std_function.h:737:5: note: candidate: 'template<class _Res, class ... _Args> bool std::operator!=(const std::function<_Res(_ArgTypes ...)>&, std::nullptr_t)'
737 | operator!=(const function<_Res(_Args...)>& __f, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/std_function.h:737:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::function<_Res(_ArgTypes ...)>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/std_function.h:743:5: note: candidate: 'template<class _Res, class ... _Args> bool std::operator!=(std::nullptr_t, const std::function<_Res(_ArgTypes ...)>&)'
743 | operator!=(nullptr_t, const function<_Res(_Args...)>& __f) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/std_function.h:743:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::function<_Res(_ArgTypes ...)>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/unordered_map.h:2141:5: note: candidate: 'template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> bool std::operator!=(const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)'
2141 | operator!=(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/unordered_map.h:2141:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/unordered_map.h:2155:5: note: candidate: 'template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> bool std::operator!=(const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)'
2155 | operator!=(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/unordered_map.h:2155:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/vector:67,
from /usr/include/c++/11/functional:62,
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 combo.cpp:3:
/usr/include/c++/11/bits/stl_vector.h:1937:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator!=(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)'
1937 | operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1937:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::vector<_Tp, _Alloc>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/deque:67,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:68,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_deque.h:2292:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator!=(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)'
2292 | operator!=(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_deque.h:2292:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::deque<_Tp, _Alloc>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/unique_ptr.h:774:5: 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>&)'
774 | operator!=(const unique_ptr<_Tp, _Dp>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:774:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::unique_ptr<_Tp, _Dp>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/unique_ptr.h:781:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator!=(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)'
781 | operator!=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:781:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::unique_ptr<_Tp, _Dp>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/unique_ptr.h:787:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator!=(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)'
787 | operator!=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:787:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::unique_ptr<_Tp, _Dp>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/list:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:79,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_list.h:2092:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator!=(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)'
2092 | operator!=(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_list.h:2092:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::list<_Tp, _Alloc>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/map:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_map.h:1508:5: 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>&)'
1508 | operator!=(const map<_Key, _Tp, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_map.h:1508:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::map<_Key, _Tp, _Compare, _Allocator>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/map:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_multimap.h:1173:5: 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>&)'
1173 | operator!=(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_multimap.h:1173:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Allocator>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/shared_ptr_base.h:1441:5: 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>&)'
1441 | operator!=(const __shared_ptr<_Tp1, _Lp>& __a,
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1441:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__shared_ptr<_Tp1, _Lp>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/shared_ptr_base.h:1447:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator!=(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)'
1447 | operator!=(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1447:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__shared_ptr<_Tp, _Lp>'
25 | if(tmp!=P[0]) C+=c;
| ^
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 combo.cpp:3:
/usr/include/c++/11/bits/shared_ptr_base.h:1452:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator!=(std::nullptr_t, const std::__shared_ptr<_Tp, _Lp>&)'
1452 | operator!=(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1452:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::__shared_ptr<_Tp, _Lp>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from combo.cpp:3:
/usr/include/c++/11/bits/shared_ptr.h:470:5: note: candidate: 'template<class _Tp, class _Up> bool std::operator!=(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Tp>&)'
470 | operator!=(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:470:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::shared_ptr<_Tp>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from combo.cpp:3:
/usr/include/c++/11/bits/shared_ptr.h:476:5: note: candidate: 'template<class _Tp> bool std::operator!=(const std::shared_ptr<_Tp>&, std::nullptr_t)'
476 | operator!=(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:476:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::shared_ptr<_Tp>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from combo.cpp:3:
/usr/include/c++/11/bits/shared_ptr.h:482:5: note: candidate: 'template<class _Tp> bool std::operator!=(std::nullptr_t, const std::shared_ptr<_Tp>&)'
482 | operator!=(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:482:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::shared_ptr<_Tp>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/queue:64,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:86,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_queue.h:368:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator!=(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)'
368 | operator!=(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_queue.h:368:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::queue<_Tp, _Seq>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/set:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_set.h:1030:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator!=(const std::set<_Key, _Compare, _Allocator>&, const std::set<_Key, _Compare, _Allocator>&)'
1030 | operator!=(const set<_Key, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_set.h:1030:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::set<_Key, _Compare, _Allocator>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/set:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_multiset.h:1016:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator!=(const std::multiset<_Key, _Compare, _Allocator>&, const std::multiset<_Key, _Compare, _Allocator>&)'
1016 | operator!=(const multiset<_Key, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_multiset.h:1016:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::multiset<_Key, _Compare, _Allocator>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/stack:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:89,
from combo.cpp:3:
/usr/include/c++/11/bits/stl_stack.h:343:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator!=(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)'
343 | operator!=(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_stack.h:343:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::stack<_Tp, _Seq>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from combo.cpp:3:
/usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__not_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>&)'
418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from combo.cpp:3:
/usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from combo.cpp:3:
/usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from combo.cpp:3:
/usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__not_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>&)'
418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from combo.cpp:3:
/usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__not_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>&)'
418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed:
combo.cpp:25:28: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
25 | if(tmp!=P[0]) C+=c;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,