| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1032473 | ThommyDB | 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 p = "";
if(press("AB")>=1){
if(press("A") >= 1) p+="A";
else p+="B";
}
else{
if(press("X") >= 1) p+="X";
else p+="Y";
}
if(N==1)return p;
vector<char> a;
for(auto u : "ABXY"){
if(u!=p[0]) a.push_back(u);
}
for(int i = 1; i<N-1; i++){
string s = "";
s += a; s += a[0]; s += a; s += a[1]; s += a[0]; s += a; s += a[1]; s += a[1]; s += a; s += a[1]; s += a[2];
int v = press(s);
if(v == p.length() +1) p+=a[0];
else if(v==p.length()+2) p+=a[1];
else p+=a[2];
}
if(press(p+a[0]) == N) p+=a[0];
else if(press(p+a[1])==N) p+=a[1];
else p+=a[2];
return p;
}
Compilation message (stderr)
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:25:7: error: no match for 'operator+=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'std::vector<char>')
25 | s += a; s += a[0]; s += a; s += a[1]; s += a[0]; s += a; s += a[1]; s += a[1]; s += a; s += a[1]; s += a[2];
| ~~^~~~
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:1139:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1139 | operator+=(const basic_string& __str)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1139:38: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::__cxx11::basic_string<char>&'
1139 | operator+=(const basic_string& __str)
| ~~~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/bits/basic_string.h:1148:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1148 | operator+=(const _CharT* __s)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1148:32: note: no known conversion for argument 1 from 'std::vector<char>' to 'const char*'
1148 | operator+=(const _CharT* __s)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1157:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1157 | operator+=(_CharT __c)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1157:25: note: no known conversion for argument 1 from 'std::vector<char>' to 'char'
1157 | operator+=(_CharT __c)
| ~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1170:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(std::initializer_list<_Tp>) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1170 | operator+=(initializer_list<_CharT> __l)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1170:43: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::initializer_list<char>'
1170 | operator+=(initializer_list<_CharT> __l)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: candidate: 'template<class _Tp> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_If_sv<_Tp, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _Tp&) [with _Tp = _Tp; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1182 | operator+=(const _Tp& __svt)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/stl_pair.h:59,
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/type_traits: In substitution of 'template<bool _Cond, class _Tp> using enable_if_t = typename std::enable_if::type [with bool _Cond = false; _Tp = std::__cxx11::basic_string<char>&]':
/usr/include/c++/10/bits/basic_string.h:117:8: required by substitution of 'template<class _CharT, class _Traits, class _Alloc> template<class _Tp, class _Res> using _If_sv = std::enable_if_t<std::__and_<std::is_convertible<const _Tp&, std::basic_string_view<_CharT, _Traits> >, std::__not_<std::is_convertible<const _Tp*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>*> >, std::__not_<std::is_convertible<const _Tp&, const _CharT*> > >::value, _Res> [with _Tp = std::vector<char>; _Res = std::__cxx11::basic_string<char>&; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
/usr/include/c++/10/bits/basic_string.h:1182:2: required by substitution of 'template<class _Tp> std::__cxx11::basic_string<char>::_If_sv<_Tp, std::__cxx11::basic_string<char>&> std::__cxx11::basic_string<char>::operator+=<_Tp>(const _Tp&) [with _Tp = std::vector<char>]'
combo.cpp:25:10: required from here
/usr/include/c++/10/type_traits:2554:11: error: no type named 'type' in 'struct std::enable_if<false, std::__cxx11::basic_string<char>&>'
2554 | using enable_if_t = typename enable_if<_Cond, _Tp>::type;
| ^~~~~~~~~~~
combo.cpp:25:26: error: no match for 'operator+=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'std::vector<char>')
25 | s += a; s += a[0]; s += a; s += a[1]; s += a[0]; s += a; s += a[1]; s += a[1]; s += a; s += a[1]; s += a[2];
| ~~^~~~
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:1139:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1139 | operator+=(const basic_string& __str)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1139:38: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::__cxx11::basic_string<char>&'
1139 | operator+=(const basic_string& __str)
| ~~~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/bits/basic_string.h:1148:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1148 | operator+=(const _CharT* __s)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1148:32: note: no known conversion for argument 1 from 'std::vector<char>' to 'const char*'
1148 | operator+=(const _CharT* __s)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1157:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1157 | operator+=(_CharT __c)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1157:25: note: no known conversion for argument 1 from 'std::vector<char>' to 'char'
1157 | operator+=(_CharT __c)
| ~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1170:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(std::initializer_list<_Tp>) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1170 | operator+=(initializer_list<_CharT> __l)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1170:43: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::initializer_list<char>'
1170 | operator+=(initializer_list<_CharT> __l)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: candidate: 'template<class _Tp> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_If_sv<_Tp, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _Tp&) [with _Tp = _Tp; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1182 | operator+=(const _Tp& __svt)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: template argument deduction/substitution failed:
combo.cpp:25:56: error: no match for 'operator+=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'std::vector<char>')
25 | s += a; s += a[0]; s += a; s += a[1]; s += a[0]; s += a; s += a[1]; s += a[1]; s += a; s += a[1]; s += a[2];
| ~~^~~~
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:1139:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1139 | operator+=(const basic_string& __str)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1139:38: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::__cxx11::basic_string<char>&'
1139 | operator+=(const basic_string& __str)
| ~~~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/bits/basic_string.h:1148:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1148 | operator+=(const _CharT* __s)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1148:32: note: no known conversion for argument 1 from 'std::vector<char>' to 'const char*'
1148 | operator+=(const _CharT* __s)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1157:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1157 | operator+=(_CharT __c)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1157:25: note: no known conversion for argument 1 from 'std::vector<char>' to 'char'
1157 | operator+=(_CharT __c)
| ~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1170:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(std::initializer_list<_Tp>) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1170 | operator+=(initializer_list<_CharT> __l)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1170:43: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::initializer_list<char>'
1170 | operator+=(initializer_list<_CharT> __l)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: candidate: 'template<class _Tp> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_If_sv<_Tp, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _Tp&) [with _Tp = _Tp; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1182 | operator+=(const _Tp& __svt)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: template argument deduction/substitution failed:
combo.cpp:25:86: error: no match for 'operator+=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'std::vector<char>')
25 | s += a; s += a[0]; s += a; s += a[1]; s += a[0]; s += a; s += a[1]; s += a[1]; s += a; s += a[1]; s += a[2];
| ~~^~~~
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:1139:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1139 | operator+=(const basic_string& __str)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1139:38: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::__cxx11::basic_string<char>&'
1139 | operator+=(const basic_string& __str)
| ~~~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/bits/basic_string.h:1148:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1148 | operator+=(const _CharT* __s)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1148:32: note: no known conversion for argument 1 from 'std::vector<char>' to 'const char*'
1148 | operator+=(const _CharT* __s)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1157:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1157 | operator+=(_CharT __c)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1157:25: note: no known conversion for argument 1 from 'std::vector<char>' to 'char'
1157 | operator+=(_CharT __c)
| ~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1170:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(std::initializer_list<_Tp>) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1170 | operator+=(initializer_list<_CharT> __l)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1170:43: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::initializer_list<char>'
1170 | operator+=(initializer_list<_CharT> __l)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: candidate: 'template<class _Tp> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_If_sv<_Tp, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator+=(const _Tp&) [with _Tp = _Tp; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
1182 | operator+=(const _Tp& __svt)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:1182:2: note: template argument deduction/substitution failed:
combo.cpp:28:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | if(v == p.length() +1) p+=a[0];
| ~~^~~~~~~~~~~~~~~~
combo.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
29 | else if(v==p.length()+2) p+=a[1];
| ~^~~~~~~~~~~~~~