Compilare: user.cpp: In function ‘void fil(int, int)’: user.cpp:20:9: warning: unused variable ‘i’ [-Wunused-variable] int i,dirx,diry; ^ user.cpp: In function ‘void numara(int, int)’: user.cpp:34:9: warning: unused variable ‘i’ [-Wunused-variable] int i,dirx,diry; ^ user.cpp: In function ‘int getsol(int, int)’: user.cpp:84:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^