Compilare: user.cpp: In function ‘int update(int, int, int, int, int, int)’: user.cpp:63:6: warning: variable ‘p1’ set but not used [-Wunused-but-set-variable] int p1 = 0, p2 = 0; ^ user.cpp:63:14: warning: variable ‘p2’ set but not used [-Wunused-but-set-variable] int p1 = 0, p2 = 0; ^ user.cpp:71:1: warning: control reaches end of non-void function [-Wreturn-type] } ^