Compilare: user.cpp: In function ‘void sum(char*, char*)’: user.cpp:22:7: warning: array subscript has type ‘char’ [-Wchar-subscripts] A[i]+=B[i]; ^ user.cpp:22:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] A[i]+=B[i]; ^ user.cpp:23:6: warning: array subscript has type ‘char’ [-Wchar-subscripts] A[i]+=t; ^ user.cpp:24:8: warning: array subscript has type ‘char’ [-Wchar-subscripts] t=A[i]/10; ^ user.cpp:25:6: warning: array subscript has type ‘char’ [-Wchar-subscripts] A[i]%=10; ^ user.cpp:28:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(t) A[++A[0]]=t; ^ user.cpp: In function ‘void div(char*, char)’: user.cpp:35:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] t=10*t+A[i]; ^ user.cpp:36:6: warning: array subscript has type ‘char’ [-Wchar-subscripts] A[i]=t/X; ^ user.cpp:40:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(A[A[0]]==0 && A[0]>1) A[0]--; ^ user.cpp: In function ‘int main()’: user.cpp:44:7: warning: unused variable ‘k’ [-Wunused-variable] ll i,k,j,n,ans=INF,q; ^ user.cpp:44:13: warning: unused variable ‘ans’ [-Wunused-variable] ll i,k,j,n,ans=INF,q; ^ user.cpp:44:21: warning: unused variable ‘q’ [-Wunused-variable] ll i,k,j,n,ans=INF,q; ^