# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
963830 | Hezov | Combo (IOI18_combo) | C++17 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string guess_sequence(int N)
{
string s = "";///Empty string.
///Find first character.
if(press("AB"))
{
if(press("A"))
s+="A";
else s+="B";
}
else
{
if(press("X"))
s+="X";
else s+="Y";
}
///First character found.
char choices[3];
int poz = 0;
if(s[0]!='A')
choices[poz++] = 'A';
if(s[0]!='B')
choices[poz++] = 'B';
if(s[0]!='X')
choices[poz++] = 'C';
if(s[0]!='Y')
choices[poz++] = 'Y';
///Now we have all the choices.
for(int i = 2;i<N;i++)
{
string p=""; ///sA sBA
p =s + choices[0] + s + choices[1] + choices[0];
/// sBB
p = s + choices[1] + s + choices[1];
/// sBC
p = s + choices[1] + choices[2];
if(press(p==i))
s+=choices[0];
else if(press(p==i+1))
s+=choices[1];
else s+=choices[2];
}
///Now we need the last letter.
if(press(s+choices[0])==N)
s+=choices[0];
else if(press+choices[1])==N)
s+=choices[1];
else s+=choices[2];
return s;
}
Compilation message (stderr)
combo.cpp: In function 'std::string guess_sequence(int)': combo.cpp:40:19: error: no match for 'operator==' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int') 40 | if(press(p==i)) | ~^~~ | | | | | int | std::string {aka std::__cxx11::basic_string<char>} In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1035:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)' 1035 | operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs) | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1035:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1131:5: 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>&)' 1131 | operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1131:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1206:5: 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>&)' 1206 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1206:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1298:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)' 1298 | operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1298:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1373:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)' 1373 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1373:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1466:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)' 1466 | operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1466:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:1545:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)' 1545 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:1545:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/regex:62, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110, from combo.cpp:2: /usr/include/c++/10/bits/regex.h:2101:5: 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>&)' 2101 | operator==(const match_results<_Bi_iter, _Alloc>& __m1, | ^~~~~~~~ /usr/include/c++/10/bits/regex.h:2101:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:64, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/string:40, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/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++/10/bits/stl_pair.h:466:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::pair<_T1, _T2>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/string:40, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:360:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)' 360 | operator==(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:360:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/string:40, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:398:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)' 398 | operator==(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:398:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/string:40, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:1427:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)' 1427 | operator==(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:1427:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/string:40, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:1495:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)' 1495 | operator==(const move_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:1495:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/char_traits.h:40, from /usr/include/c++/10/string:40, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/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++/10/bits/postypes.h:222:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::fpos<_StateT>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/string:41, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/allocator.h:206:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)' 206 | operator==(const allocator<_T1>&, const allocator<_T2>&) | ^~~~~~~~ /usr/include/c++/10/bits/allocator.h:206:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::allocator<_CharT>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/basic_string.h:48, from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/string_view:490:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)' 490 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/10/string_view:490:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/basic_string.h:48, from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/string_view:496:5: 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> >)' 496 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/10/string_view:496:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/basic_string.h:48, from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/string_view:519:5: 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>)' 519 | operator==(__type_identity_t<basic_string_view<_CharT, _Traits>> __x, | ^~~~~~~~ /usr/include/c++/10/string_view:519:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/basic_string.h:6153:5: 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>&)' 6153 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/basic_string.h:6153:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/basic_string.h:6161:5: 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>&)' 6161 | operator==(const basic_string<_CharT>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/basic_string.h:6161:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const std::__cxx11::basic_string<_CharT>' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/basic_string.h:6175:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)' 6175 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/basic_string.h:6175:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const _CharT*' and 'int' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/string:55, from combo.h:3, from combo.cpp:1: /usr/include/c++/10/bits/basic_string.h:6216:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)' 6216 | operator==(const _CharT* __lhs, | ^~~~~~~~ /usr/include/c++/10/bits/basic_string.h:6216:5: note: template argument deduction/substitution failed: combo.cpp:40:21: note: mismatched types 'const _CharT*' and 'std::__cxx11::basic_string<char>' 40 | if(press(p==i)) | ^ In file included from /usr/include/c++/10/bits/ios_base.h:46, from /usr/include/c++/10/ios:42, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/sstream:38, from /usr/include/c++/10/complex:45, from /usr/include/c++/10/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54, from combo.cpp:2: /usr/include/c++/10/system_error:342:3: note: candidate: 'bool std::operator==(const std::error_code&, const std::error_code&)' 342 | operator==(const error_code& __lhs, const error_code& __rhs) noexcept | ^~~~~~~~ /usr/include/c++/10/system_error:342:32: note: no known conversion fo