Compilare: user.cpp: In function ‘int inmultire(int*, int)’: user.cpp:19:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int impartire(int*, int)’: user.cpp:31:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int adunare()’: user.cpp:52:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^