Eroare de compilare: user.cpp:17: 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)': user.cpp:29: error: invalid conversion from 'char* (*)(const char*, int)throw ()' to 'int' user.cpp:30: error: invalid conversion from 'char* (*)(const char*, int)throw ()' to 'int' user.cpp:31: error: ISO C++ forbids incrementing a pointer of type 'char* (*)(const char*, int)throw ()' user.cpp:31: error: lvalue required as increment operand