Eroare de compilare: user.cpp:21:11: error: ‘int index’ redeclared as different kind of symbol int n, m, index, ans [32001]; ^ In file included from /usr/local/include/c++/4.8.0/cstring:42:0, from user.cpp:2: /usr/include/string.h:480:1: error: previous declaration of ‘const char* index(const char*, int)’ index (__const char *__s, int __c) __THROW ^ user.cpp: In function ‘void insert(int, int)’: user.cpp:53:31: error: no matching function for call to ‘std::vector<int>::push_back(<unresolved overloaded function type>)’ node -> v.push_back (index); ^ user.cpp:53:31: note: candidates are: In file included from /usr/local/include/c++/4.8.0/vector:64:0, from user.cpp:3: /usr/local/include/c++/4.8.0/bits/stl_vector.h:901:7: note: void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int] push_back(const value_type& __x) ^ /usr/local/include/c++/4.8.0/bits/stl_vector.h:901:7: note: no known conversion for argument 1 from ‘<unresolved overloaded function type>’ to ‘const value_type& {aka const int&}’ /usr/local/include/c++/4.8.0/bits/stl_vector.h:919:7: note: void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int] push_back(value_type&& __x) ^ /usr/local/include/c++/4.8.0/bits/stl_vector.h:919:7: note: no known conversion for argument 1 from ‘<unresolved overloaded function type>’ to ‘std::vector<int>::value_type&& {aka int&&}’ user.cpp: In function ‘void solve()’: user.cpp:87:15: error: overloaded function with no contextual type information index = i; ^