Eroare de compilare: main.cpp: In function 'void add(char, char, char, char, int)': main.cpp:18:10: error: no match for 'operator[]' (operand types are 'std::map<std::__cxx11::basic_string<char>, int>' and 'std::vector<char>') 18 | if(Dp[X]!=i) | ^ In file included from /usr/include/c++/12.2.1/map:61, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:81, from main.cpp:1: /usr/include/c++/12.2.1/bits/stl_map.h:502:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::__cxx11::basic_string<char>; _Tp = int; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, int> >; mapped_type = int; key_type = std::__cxx11::basic_string<char>]' 502 | operator[](const key_type& __k) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_map.h:502:34: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::map<std::__cxx11::basic_string<char>, int>::key_type&' {aka 'const std::__cxx11::basic_string<char>&'} 502 | operator[](const key_type& __k) | ~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_map.h:522:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](key_type&&) [with _Key = std::__cxx11::basic_string<char>; _Tp = int; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, int> >; mapped_type = int; key_type = std::__cxx11::basic_string<char>]' 522 | operator[](key_type&& __k) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_map.h:522:29: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::map<std::__cxx11::basic_string<char>, int>::key_type&&' {aka 'std::__cxx11::basic_string<char>&&'} 522 | operator[](key_type&& __k) | ~~~~~~~~~~~^~~ main.cpp:19:25: error: no match for 'operator[]' (operand types are 'std::map<std::__cxx11::basic_string<char>, int>' and 'std::vector<char>') 19 | ans=max(ans,++dp[X]); | ^ /usr/include/c++/12.2.1/bits/stl_map.h:502:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::__cxx11::basic_string<char>; _Tp = int; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, int> >; mapped_type = int; key_type = std::__cxx11::basic_string<char>]' 502 | operator[](const key_type& __k) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_map.h:502:34: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::map<std::__cxx11::basic_string<char>, int>::key_type&' {aka 'const std::__cxx11::basic_string<char>&'} 502 | operator[](const key_type& __k) | ~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_map.h:522:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](key_type&&) [with _Key = std::__cxx11::basic_string<char>; _Tp = int; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, int> >; mapped_type = int; key_type = std::__cxx11::basic_string<char>]' 522 | operator[](key_type&& __k) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_map.h:522:29: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::map<std::__cxx11::basic_string<char>, int>::key_type&&' {aka 'std::__cxx11::basic_string<char>&&'} 522 | operator[](key_type&& __k) | ~~~~~~~~~~~^~~ main.cpp:20:7: error: no match for 'operator[]' (operand types are 'std::map<std::__cxx11::basic_string<char>, int>' and 'std::vector<char>') 20 | Dp[X]=i; | ^ /usr/include/c++/12.2.1/bits/stl_map.h:502:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::__cxx11::basic_string<char>; _Tp = int; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, int> >; mapped_type = int; key_type = std::__cxx11::basic_string<char>]' 502 | operator[](const key_type& __k) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_map.h:502:34: note: no known conversion for argument 1 from 'std::vector<char>' to 'const std::map<std::__cxx11::basic_string<char>, int>::key_type&' {aka 'const std::__cxx11::basic_string<char>&'} 502 | operator[](const key_type& __k) | ~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_map.h:522:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](key_type&&) [with _Key = std::__cxx11::basic_string<char>; _Tp = int; _Compare = std::less<std::__cxx11::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::__cxx11::basic_string<char>, int> >; mapped_type = int; key_type = std::__cxx11::basic_string<char>]' 522 | operator[](key_type&& __k) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_map.h:522:29: note: no known conversion for argument 1 from 'std::vector<char>' to 'std::map<std::__cxx11::basic_string<char>, int>::key_type&&' {aka 'std::__cxx11::basic_string<char>&&'} 522 | operator[](key_type&& __k) | ~~~~~~~~~~~^~~ Non zero exit status: 1