| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 849558 | chilengaming | 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<bits/stdc++.h>
#include "combo.h"
using namespace std;
char first_char () {
int tmp = press("AB");
if(tmp == 2) {
return 'A';
} else
if(tmp == 1) {
if(press("A") == 1) {
return 'A';
} else {
return 'B';
}
} else {
if(press("X") == 1) {
return 'X';
} else {
return 'Y';
}
}
}
char last_char(string s, string tmp, int n) {
if(press(s + tmp[0]) == n) return tmp[0]; else
if(press(s + tmp[1]) == n) return tmp[1]; else
return tmp[2];
}
string guess_sequence(int N) {
string s = "";
char c_first = first_char();
string tmp;
if(c_first == 'A') tmp = "BXY"; else
if(c_first == 'B') tmp = "AXY"; else
if(c_first == 'X') tmp = "ABY"; else
tmp = "ABX";
while(s.size() < N - 1) {
int t = press(s + tmp[0] + tmp[0] + s + tmp[0] + tmp[1] + s + tmp[0] + tmp[2] + s + tmp[1]);
if(t == s.size() + 2) {
s = s + tmp[0];
} else
if(t == s.size() + 1) {
s = s + tmp[1];
} else {
s = s + tmp[2];
}
}
char c_last = last_char(s, tmp, N);
string s_ans = (string) first_char + s + last_char;
return s;
}
Compilation message (stderr)
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:39:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
39 | while(s.size() < N - 1) {
| ~~~~~~~~~^~~~~~~
combo.cpp:41:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | if(t == s.size() + 2) {
| ~~^~~~~~~~~~~~~~~
combo.cpp:44:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
44 | if(t == s.size() + 1) {
| ~~^~~~~~~~~~~~~~~
combo.cpp:51:29: error: no matching function for call to 'std::__cxx11::basic_string<char>::basic_string(char (&)())'
51 | string s_ans = (string) first_char + s + last_char;
| ^~~~~~~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
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:1:
/usr/include/c++/10/bits/basic_string.h:650:2: note: candidate: 'template<class _Tp, class> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _Tp&, const _Alloc&) [with _Tp = _Tp; <template-parameter-2-2> = <template-parameter-1-2>; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
650 | basic_string(const _Tp& __t, const _Alloc& __a = _Alloc())
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:650:2: 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/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
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 = void]':
/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 = char(); _Res = void; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
/usr/include/c++/10/bits/basic_string.h:648:30: required from here
/usr/include/c++/10/type_traits:2554:11: error: no type named 'type' in 'struct std::enable_if<false, void>'
2554 | using enable_if_t = typename enable_if<_Cond, _Tp>::type;
| ^~~~~~~~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
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:1:
/usr/include/c++/10/bits/basic_string.h:639:2: note: candidate: 'template<class _Tp, class> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _Tp&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, const _Alloc&) [with _Tp = _Tp; <template-parameter-2-2> = <template-parameter-1-2>; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
639 | basic_string(const _Tp& __t, size_type __pos, size_type __n,
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:639:2: note: template argument deduction/substitution failed:
combo.cpp:51:29: note: candidate expects 4 arguments, 1 provided
51 | string s_ans = (string) first_char + s + last_char;
| ^~~~~~~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
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:1:
/usr/include/c++/10/bits/basic_string.h:625:9: note: candidate: 'template<class _InputIterator, class> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(_InputIterator, _InputIterator, const _Alloc&) [with _InputIterator = _InputIterator; <template-parameter-2-2> = <template-parameter-1-2>; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
625 | basic_string(_InputIterator __beg, _InputIterator __end,
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:625:9: note: template argument deduction/substitution failed:
combo.cpp:51:29: note: candidate expects 3 arguments, 1 provided
51 | string s_ans = (string) first_char + s + last_char;
| ^~~~~~~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
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:1:
/usr/include/c++/10/bits/basic_string.h:587:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
587 | basic_string(basic_string&& __str, const _Alloc& __a)
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:587:7: note: candidate expects 2 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:583:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
583 | basic_string(const basic_string& __str, const _Alloc& __a)
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:583:7: note: candidate expects 2 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:579:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(std::initializer_list<_Tp>, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
579 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc())
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:579:45: note: no known conversion for argument 1 from 'char()' to 'std::initializer_list<char>'
579 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc())
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:552:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
552 | basic_string(basic_string&& __str) noexcept
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:552:35: note: no known conversion for argument 1 from 'char()' to 'std::__cxx11::basic_string<char>&&'
552 | basic_string(basic_string&& __str) noexcept
| ~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/bits/basic_string.h:540:7: note: candidate: 'template<class> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, _CharT, const _Alloc&) [with <template-parameter-2-1> = <template-parameter-1-1>; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
540 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc())
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:540:7: note: template argument deduction/substitution failed:
combo.cpp:51:29: note: candidate expects 3 arguments, 1 provided
51 | string s_ans = (string) first_char + s + last_char;
| ^~~~~~~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
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:1:
/usr/include/c++/10/bits/basic_string.h:525:7: note: candidate: 'template<class> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*, const _Alloc&) [with <template-parameter-2-1> = <template-parameter-1-1>; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
525 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc())
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:525:7: note: template argument deduction/substitution failed:
combo.cpp:51:29: note: cannot convert 'first_char' (type 'char()') to type 'const char*'
51 | string s_ans = (string) first_char + s + last_char;
| ^~~~~~~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
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:1:
/usr/include/c++/10/bits/basic_string.h:510:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type = long unsigned int]'
510 | basic_string(const _CharT* __s, size_type __n,
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:510:7: note: candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:492:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type = long unsigned int]'
492 | basic_string(const basic_string& __str, size_type __pos,
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:492:7: note: candidate expects 4 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:476:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type = long unsigned int]'
476 | basic_string(const basic_string& __str, size_type __pos,
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:476:7: note: candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:461:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type = long unsigned int]'
461 | basic_string(const basic_string& __str, size_type __pos,
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:461:7: note: candidate expects 3 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:448:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
448 | basic_string(const basic_string& __str)
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:448:40: note: no known conversion for argument 1 from 'char()' to 'const std::__cxx11::basic_string<char>&'
448 | basic_string(const basic_string& __str)
| ~~~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/bits/basic_string.h:440:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
440 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPT
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:440:34: note: no known conversion for argument 1 from 'char()' to 'const std::allocator<char>&'
440 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPT
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/basic_string.h:431:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string() [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
431 | basic_string()
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:431:7: note: candidate expects 0 arguments, 1 provided
/usr/include/c++/10/bits/basic_string.h:145:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::basic_string(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::__sv_wrapper, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
145 | basic_string(__sv_wrapper __svw, const _Alloc& __a)
| ^~~~~~~~~~~~
/usr/include/c++/10/bits/basic_string.h:145:7: note: candidate expects 2 arguments, 1 provided
combo.cpp:50:10: warning: unused variable 'c_last' [-Wunused-variable]
50 | char c_last = last_char(s, tmp, N);
| ^~~~~~