Eroare de compilare: user.cpp:10: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp: In function ‘void read()’: user.cpp:18: error: ‘Hash’ was not declared in this scope user.cpp: In function ‘void solve()’: user.cpp:23: error: ‘Hash’ was not declared in this scope user.cpp:27: error: ‘Hash’ was not declared in this scope user.cpp:34: error: ‘Hash’ was not declared in this scope