Compilare: user.cpp: In function ‘int main()’: user.cpp:33:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[s[i][j]]=1; ^ user.cpp:66:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] val1 = val1 * 8 + c[s[i][j]]; ^ user.cpp:79:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] val2 = val2*8 + c[s[i][j]]; ^