Eroare de compilare: main.cpp:14:5: error: 'int index' redeclared as different kind of entity 14 | int index=0; | ^~~~~ In file included from /usr/include/string.h:462, from /usr/include/c++/12.2.1/cstring:42, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:48, from main.cpp:1: /usr/include/strings.h:61:1: note: previous declaration 'const char* index(const char*, int)' 61 | index (const char *__s, int __c) __THROW | ^~~~~ main.cpp: In function 'int factor()': main.cpp:22:9: error: no match for 'operator[]' (operand types are 'std::vector<int>' and '<unresolved overloaded function type>') 22 | if(v[index]==2) | ^ In file included from /usr/include/c++/12.2.1/vector:64, from /usr/include/c++/12.2.1/functional:62, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:71: /usr/include/c++/12.2.1/bits/stl_vector.h:1121:7: note: candidate: 'constexpr std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]' 1121 | operator[](size_type __n) _GLIBCXX_NOEXCEPT | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_vector.h:1121:28: note: no known conversion for argument 1 from '<unresolved overloaded function type>' to 'std::vector<int>::size_type' {aka 'long unsigned int'} 1121 | operator[](size_type __n) _GLIBCXX_NOEXCEPT | ~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_vector.h:1140:7: note: candidate: 'constexpr std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](size_type) const [with _Tp = int; _Alloc = std::allocator<int>; const_reference = const int&; size_type = long unsigned int]' 1140 | operator[](size_type __n) const _GLIBCXX_NOEXCEPT | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_vector.h:1140:28: note: no known conversion for argument 1 from '<unresolved overloaded function type>' to 'std::vector<int>::size_type' {aka 'long unsigned int'} 1140 | operator[](size_type __n) const _GLIBCXX_NOEXCEPT | ~~~~~~~~~~^~~ main.cpp:24:14: error: no post-increment operator for type 24 | index++; | ^~ main.cpp:27:14: error: no match for 'operator[]' (operand types are 'std::vector<int>' and '<unresolved overloaded function type>') 27 | else if(v[index]=='(') | ^ /usr/include/c++/12.2.1/bits/stl_vector.h:1121:7: note: candidate: 'constexpr std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]' 1121 | operator[](size_type __n) _GLIBCXX_NOEXCEPT | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_vector.h:1121:28: note: no known conversion for argument 1 from '<unresolved overloaded function type>' to 'std::vector<int>::size_type' {aka 'long unsigned int'} 1121 | operator[](size_type __n) _GLIBCXX_NOEXCEPT | ~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_vector.h:1140:7: note: candidate: 'constexpr std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](size_type) const [with _Tp = int; _Alloc = std::allocator<int>; const_reference = const int&; size_type = long unsigned int]' 1140 | operator[](size_type __n) const _GLIBCXX_NOEXCEPT | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_vector.h:1140:28: note: no known conversion for argument 1 from '<unresolved overloaded function type>' to 'std::vector<int>::size_type' {aka 'long unsigned int'} 1140 | operator[](size_type __n) const _GLIBCXX_NOEXCEPT | ~~~~~~~~~~^~~ main.cpp:29:14: error: no post-increment operator for type 29 | index++; | ^~ Non zero exit status: 1