제출 #134236

실행 실패 (제출 코드 컴파일 에러)

Main.cpp: In function ‘int main()’:
Main.cpp:23:29: error: conflicting declaration ‘std::unordered_map<int, int> countA’
   23 |     unordered_map<int, int> countA;
      |                             ^~~~~~
Main.cpp:20:50: note: previous declaration as ‘std::unordered_map<std::pair<int, int>, int, PairHash> countA’
   20 |     unordered_map<pair<int, int>, int, PairHash> countA;
      |                                                  ^~~~~~
Main.cpp:24:9: error: redeclaration of ‘int bal’
   24 |     int bal = 0;
      |         ^~~
Main.cpp:22:9: note: ‘int bal’ previously declared here
   22 |     int bal = 0, min_bal = 0;
      |         ^~~
Main.cpp:28:15: error: no match for ‘operator[]’ (operand types are ‘std::unordered_map<std::pair<int, int>, int, PairHash>’ and ‘int’)
   28 |         countA[bal]++;
      |               ^
In file included from /usr/include/c++/11/unordered_map:47,
                 from Main.cpp:3:
/usr/include/c++/11/bits/unordered_map.h:979:7: note: candidate: ‘std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::mapped_type& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator[](const key_type&) [with _Key = std::pair<int, int>; _Tp = int; _Hash = PairHash; _Pred = std::equal_to<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::mapped_type = int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_type = std::pair<int, int>]’
  979 |       operator[](const key_type& __k)
      |       ^~~~~~~~
/usr/include/c++/11/bits/unordered_map.h:979:34: note:   no known conversion for argument 1 from ‘int’ to ‘const key_type&’ {aka ‘const std::pair<int, int>&’}
  979 |       operator[](const key_type& __k)
      |                  ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/11/bits/unordered_map.h:983:7: note: candidate: ‘std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::mapped_type& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator[](std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_type&&) [with _Key = std::pair<int, int>; _Tp = int; _Hash = PairHash; _Pred = std::equal_to<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::mapped_type = int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_type = std::pair<int, int>]’
  983 |       operator[](key_type&& __k)
      |       ^~~~~~~~
/usr/include/c++/11/bits/unordered_map.h:983:29: note:   no known conversion for argument 1 from ‘int’ to ‘std::unordered_map<std::pair<int, int>, int, PairHash>::key_type&&’ {aka ‘std::pair<int, int>&&’}
  983 |       operator[](key_type&& __k)
      |                  ~~~~~~~~~~~^~~
Main.cpp:40:28: error: cannot convert ‘const std::pair<int, int>’ to ‘int’ in initialization
   40 |             int a_bal = it.first;
      |                         ~~~^~~~~
      |                            |
      |                            const std::pair<int, int>