Eroare de compilare: user.cpp:8: 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 solve()': user.cpp:22: error: pointer to a function used in arithmetic user.cpp:22: error: invalid conversion from 'char* (*)(const char*, int)throw ()' to 'int' user.cpp:23: error: assignment of function 'char* index(const char*, int)' user.cpp:23: error: cannot convert 'int' to 'char* ()(const char*, int)throw ()' in assignment