| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 380898 | ritul_kr_singh | 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"
using namespace std;
string guess_sequence(int n){
string s;
if(press("AB"))
s = press("A") ? "A" : "B";
else
s = press("X") ? "X" : "Y";
string all, orig = "ABXY";
for(char c : orig) if(c!=s) all.push_back(c);
for(int i=1; i+1<n; ++i){
string t;
for(char c : all) t.push_back(s + all[2] + c);
t.push_back(s + all[1]);
s += all[press(t)-i];
}
string t;
if(press(s+all[0]+s+all[1])==n)
s += (press(s+all[0])==n) ? all[0] : all[1];
else s += all[2];
return s;
}
Compilation message (stderr)
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:12:25: error: no match for 'operator!=' (operand types are 'char' and 'std::string' {aka 'std::__cxx11::basic_string<char>'})
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ~^~~
| | |
| | std::string {aka std::__cxx11::basic_string<char>}
| char
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: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++/10/bits/stl_pair.h:496:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::pair<_T1, _T2>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:372:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
372 | operator!=(const reverse_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:372:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:410:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
410 | operator!=(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:410:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:1444:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
1444 | operator!=(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1444:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::move_iterator<_IteratorL>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:1501:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
1501 | operator!=(const move_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1501:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::move_iterator<_IteratorL>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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: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++/10/bits/postypes.h:227:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::fpos<_StateT>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:213:5: note: candidate: 'template<class _T1, class _T2> bool std::operator!=(const std::allocator<_CharT>&, const std::allocator<_T2>&)'
213 | operator!=(const allocator<_T1>&, const allocator<_T2>&)
| ^~~~~~~~
/usr/include/c++/10/bits/allocator.h:213:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::allocator<_CharT>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:525:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator!=(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
525 | operator!=(basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/10/string_view:525:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:531:5: 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> >)'
531 | operator!=(basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/10/string_view:531:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:538:5: 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>)'
538 | operator!=(__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
| ^~~~~~~~
/usr/include/c++/10/string_view:538:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: 'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:6229:5: 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>&)'
6229 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6229:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:6242:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6242 | operator!=(const _CharT* __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6242:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const _CharT*' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:6254:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
6254 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6254:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:197:7: note: candidate: 'bool std::operator!=(const std::allocator<char>&, const std::allocator<char>&)'
197 | operator!=(const allocator&, const allocator&) _GLIBCXX_NOTHROW
| ^~~~~~~~
/usr/include/c++/10/bits/allocator.h:197:18: note: no known conversion for argument 1 from 'char' to 'const std::allocator<char>&'
197 | operator!=(const allocator&, const allocator&) _GLIBCXX_NOTHROW
| ^~~~~~~~~~~~~~~~
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:1080:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator!=(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
1080 | operator!=(const __normal_iterator<_IteratorL, _Container>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1080:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
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:1088:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator!=(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
1088 | operator!=(const __normal_iterator<_Iterator, _Container>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1088:5: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: mismatched types 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>' and 'char'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/c++allocator.h:33,
from /usr/include/c++/10/bits/allocator.h:46,
from /usr/include/c++/10/string:41,
from combo.h:3,
from combo.cpp:1:
/usr/include/c++/10/ext/new_allocator.h:178:2: note: candidate: 'template<class _Up> bool __gnu_cxx::operator!=(const __gnu_cxx::new_allocator<char>&, const __gnu_cxx::new_allocator<_Tp>&)'
178 | operator!=(const new_allocator&, const new_allocator<_Up>&)
| ^~~~~~~~
/usr/include/c++/10/ext/new_allocator.h:178:2: note: template argument deduction/substitution failed:
combo.cpp:12:27: note: 'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const __gnu_cxx::new_allocator<_Tp>'
12 | for(char c : orig) if(c!=s) all.push_back(c);
| ^
combo.cpp:16:44: error: cannot convert 'std::__cxx11::basic_string<char>' to 'char'
16 | for(char c : all) t.push_back(s + all[2] + c);
| ~~~~~~~~~~~^~~
| |
| std::__cxx11::basic_string<char>
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:1320:24: note: initializing argument 1 of 'void std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::push_back(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1320 | push_back(_CharT __c)
| ~~~~~~~^~~
combo.cpp:17:17: error: cannot convert 'std::__cxx11::basic_string<char>' to 'char'
17 | t.push_back(s + all[1]);
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:1320:24: note: initializing argument 1 of 'void std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::push_back(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1320 | push_back(_CharT __c)
| ~~~~~~~^~~