Eroare de compilare: user.cpp:35: error: 'int index' redeclared as different kind of symbol /usr/include/string.h:310: error: previous declaration of 'char* index(const char*, int)' user.cpp: In function 'void dfs(int, std::vector<int, std::allocator<int> >*)': user.cpp:59: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void dfsT(int, std::vector<int, std::allocator<int> >*)': user.cpp:76: warning: comparison between signed and unsigned integer expressions