Eroare de compilare: user.cpp:2:22: error: hash_set.h: No such file or directory user.cpp:11: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp: In function ‘void read()’: user.cpp:19: error: ‘Hash’ was not declared in this scope user.cpp: In function ‘void solve()’: user.cpp:24: error: ‘Hash’ was not declared in this scope user.cpp:28: error: ‘Hash’ was not declared in this scope user.cpp:35: error: ‘Hash’ was not declared in this scope