Submission #316797

# Submission time Handle Problem Language Result Execution time Memory
316797 2020-10-28T04:36:58 Z seedkin Combo (IOI18_combo) C++11
Compilation error
0 ms 0 KB
#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

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