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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#584247	#7700. Split Decisions	MaMengQi	Compile Error	/	/	C++20	1.4kb	2024-09-23 10:52:04	2024-09-23 10:52:04
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Details

answer.code: In function ‘void solve()’:
answer.code:50:51: error: no match for ‘operator[]’ (operand types are ‘std::map<std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >, long long int>’ and ‘<brace-enclosed initializer list>’)
   50 |                                                 um[{{s1,s2},{len1,k}}]++;
      |                                                   ^
In file included from /usr/include/c++/13/map:63,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:152,
                 from answer.code:1:
/usr/include/c++/13/bits/stl_map.h:504:7: note: candidate: ‘std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >; _Tp = long long int; _Compare = std::less<std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> > >; _Alloc = std::allocator<std::pair<const std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >, long long int> >; mapped_type = long long int; key_type = std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >]’
  504 |       operator[](const key_type& __k)
      |       ^~~~~~~~
/usr/include/c++/13/bits/stl_map.h:504:34: note:   no known conversion for argument 1 from ‘<brace-enclosed initializer list>’ to ‘const std::map<std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >, long long int>::key_type&’ {aka ‘const std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >&’}
  504 |       operator[](const key_type& __k)
      |                  ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/13/bits/stl_map.h:524:7: note: candidate: ‘std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](key_type&&) [with _Key = std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >; _Tp = long long int; _Compare = std::less<std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> > >; _Alloc = std::allocator<std::pair<const std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >, long long int> >; mapped_type = long long int; key_type = std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >]’
  524 |       operator[](key_type&& __k)
      |       ^~~~~~~~
/usr/include/c++/13/bits/stl_map.h:524:29: note:   no known conversion for argument 1 from ‘<brace-enclosed initializer list>’ to ‘std::map<std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >, long long int>::key_type&&’ {aka ‘std::map<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >, std::pair<long long int, long long int> >&&’}
  524 |       operator[](key_type&& __k)
      |                  ~~~~~~~~~~~^~~