Compilare: user.cpp:20:12: warning: multi-character character constant [-Wmultichar] g<<'-1'; ^ user.cpp: In function ‘int main()’: user.cpp:9:11: warning: unused variable ‘x’ [-Wunused-variable] int n,x,i,j,cont=1,ok=0,aux,maxx; ^ user.cpp:9:15: warning: unused variable ‘j’ [-Wunused-variable] int n,x,i,j,cont=1,ok=0,aux,maxx; ^ user.cpp:9:17: warning: unused variable ‘cont’ [-Wunused-variable] int n,x,i,j,cont=1,ok=0,aux,maxx; ^ user.cpp:9:29: warning: unused variable ‘aux’ [-Wunused-variable] int n,x,i,j,cont=1,ok=0,aux,maxx; ^ user.cpp:9:33: warning: unused variable ‘maxx’ [-Wunused-variable] int n,x,i,j,cont=1,ok=0,aux,maxx; ^