Eroare de compilare: user.cpp:20:14: error: ISO C++ forbids declaration of ‘adaugareHash’ with no type [-fpermissive] adaugareHash() ^ user.cpp: In function ‘int adaugareHash()’: user.cpp:22:32: warning: unused variable ‘strln’ [-Wunused-variable] unsigned long long nr1 = 0,strln, putere = 1,e = 0; ^ user.cpp:61:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void citire()’: user.cpp:65:9: warning: unused variable ‘a’ [-Wunused-variable] int a = 0; ^