Compilare: user.cpp: In function ‘int main()’: user.cpp:34:27: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[20]’ [-Wformat=] while(scanf("%s ",&aux)!=EOF) ^ user.cpp:33:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,sol=0,a,b,c,n; ^ user.cpp:33:19: warning: unused variable ‘a’ [-Wunused-variable] int i,j,sol=0,a,b,c,n; ^ user.cpp:33:21: warning: unused variable ‘b’ [-Wunused-variable] int i,j,sol=0,a,b,c,n; ^ user.cpp:33:25: warning: unused variable ‘n’ [-Wunused-variable] int i,j,sol=0,a,b,c,n; ^ user.cpp:65:15: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] afisare(c); ^