Submission #316797

#TimeUsernameProblemLanguageResultExecution timeMemory
316797seedkinCombo (IOI18_combo)C++11
Compilation error
0 ms0 KiB
#include "combo.h" std::string guess_sequence(int N) { char map[200][3]; map['A'][0] = 'B'; map['A'][1] = 'X'; map['A'][2] = 'Y'; map['X'][0] = 'A'; map['X'][1] = 'B'; map['X'][2] = 'Y'; map['B'][0] = 'A'; map['B'][1] = 'X'; map['B'][2] = 'Y'; map['Y'][0] = 'A'; map['Y'][1] = 'X'; map['Y'][2] = 'B'; std::string p = ""; int coins; std::string S = ""; char first; if(N == 1) { p = 'A'; coins = press(p); if(coins) return p; p = 'B'; coins = press(p); if(coins) return p; p = 'X'; coins = press(p); if(coins) return p; P = 'Y'; return p; } else if (N == 2) { p = "AAAB"; coins = press(p); if(coins == 4) { S = "AB" return S; } else if (coins == 3) { S += 'A'; first = 'A'; } else if (coins == 1) { S += 'B'; first = 'B'; } p = "XXXY"; coins = press(p); if(coins == 4) { S = "XY" return S; } else if (coins == 3) { S += 'X'; first = 'X'; } else if (coins == 1) { S += 'Y'; first = 'Y'; } p = S + map[first][0]; p += S + map[first][1]; p += S + map[first][1]; coins = press(p); if(p == 3) { S += map[first][2]; } else if (p == 4) { S += map[first][0]; } else { S += map[first][1]; } return S; } else { p = "AAAB"; coins = press(p); if (coins >= 3) { S += 'A'; first = 'A'; } else if (coins == 1) { S += 'B'; first = 'B'; } p = "XXXY"; coins = press(p); if (coins >= 3) { S += 'X'; first = 'X'; } else if (coins == 1) { S += 'Y'; first = 'Y'; } int len = 1; for(; len < N; len++) { p = S + map[first][0]; p += S + map[first][1]; p += S + map[first][1]; coins = press(p); if(p == len * 3) { S += map[first][2]; } else if (p == len * 3 + 1) { S += map[first][0]; } else { S += map[first][1]; } } } return S; }

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:35:5: error: 'P' was not declared in this scope
   35 |     P = 'Y';
      |     ^
combo.cpp:41:15: error: expected ';' before 'return'
   41 |       S = "AB"
      |               ^
      |               ;
   42 |       return S;
      |       ~~~~~~   
combo.cpp:54:15: error: expected ';' before 'return'
   54 |       S = "XY"
      |               ^
      |               ;
   55 |       return S;
      |       ~~~~~~   
combo.cpp:64:17: warning: array subscript has type 'char' [-Wchar-subscripts]
   64 |     p = S + map[first][0];
      |                 ^~~~~
combo.cpp:65:18: warning: array subscript has type 'char' [-Wchar-subscripts]
   65 |     p += S + map[first][1];
      |                  ^~~~~
combo.cpp:66:18: warning: array subscript has type 'char' [-Wchar-subscripts]
   66 |     p += S + map[first][1];
      |                  ^~~~~
combo.cpp:70:10: error: no match for 'operator==' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   70 |     if(p == 3) {
      |        ~ ^~ ~
      |        |    |
      |        |    int
      |        std::string {aka std::__cxx11::basic_string<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: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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::pair<_T1, _T2>'
   70 |     if(p == 3) {
      |             ^
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> 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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   70 |     if(p == 3) {
      |             ^
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> 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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   70 |     if(p == 3) {
      |             ^
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> 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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   70 |     if(p == 3) {
      |             ^
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> 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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   70 |     if(p == 3) {
      |             ^
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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::fpos<_StateT>'
   70 |     if(p == 3) {
      |             ^
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:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::allocator<_CharT>'
   70 |     if(p == 3) {
      |             ^
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, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)'
 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:70:13: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
   70 |     if(p == 3) {
      |             ^
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:70:13: note:   mismatched types 'const std::__cxx11::basic_string<_CharT>' and 'int'
   70 |     if(p == 3) {
      |             ^
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, _Alloc>&, 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:70:13: note:   mismatched types 'const _CharT*' and 'int'
   70 |     if(p == 3) {
      |             ^
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, _Alloc>&)'
 6216 |     operator==(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6216:5: note:   template argument deduction/substitution failed:
combo.cpp:70:13: note:   mismatched types 'const _CharT*' and 'std::__cxx11::basic_string<char>'
   70 |     if(p == 3) {
      |             ^
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:192:7: note: candidate: 'bool std::operator==(const std::allocator<char>&, const std::allocator<char>&)'
  192 |       operator==(const allocator&, const allocator&) _GLIBCXX_NOTHROW
      |       ^~~~~~~~
/usr/include/c++/10/bits/allocator.h:192:18: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const std::allocator<char>&'
  192 |       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:1064:5: 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>&)'
 1064 |     operator==(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1064:5: note:   template argument deduction/substitution failed:
combo.cpp:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   70 |     if(p == 3) {
      |             ^
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:1072:5: 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>&)'
 1072 |     operator==(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1072:5: note:   template argument deduction/substitution failed:
combo.cpp:70:13: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   70 |     if(p == 3) {
      |             ^
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:171:2: note: candidate: 'template<class _Up> bool __gnu_cxx::operator==(const __gnu_cxx::new_allocator<char>&, const __gnu_cxx::new_allocator<_Tp>&)'
  171 |  operator==(const new_allocator&, const new_allocator<_Up>&)
      |  ^~~~~~~~
/usr/include/c++/10/ext/new_allocator.h:171:2: note:   template argument deduction/substitution failed:
combo.cpp:70:13: note:   mismatched types 'const __gnu_cxx::new_allocator<_Tp>' and 'int'
   70 |     if(p == 3) {
      |             ^
combo.cpp:71:16: warning: array subscript has type 'char' [-Wchar-subscripts]
   71 |       S += map[first][2];
      |                ^~~~~
combo.cpp:72:18: error: no match for 'operator==' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   72 |     } else if (p == 4) {
      |                ~ ^~ ~
      |                |    |
      |                |    int
      |                std::string {aka std::__cxx11::basic_string<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: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:72:21: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::pair<_T1, _T2>'
   72 |     } else if (p == 4) {
      |                     ^
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> 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:72:21: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   72 |     } else if (p == 4) {
      |                     ^
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> 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:72:21: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   72 |     } else if (p == 4) {
      |                     ^
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> 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:72:21: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   72 |     } else if (p == 4) {
      |                     ^
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> 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:72:21: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   72 |     } else if (p == 4) {
      |                     ^
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==(con