Compilare: user.cpp: In function ‘int main()’: user.cpp:40:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:79: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:40:84: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(b[y.l][y.c]!=-1 && b[y.l][y.c]!=0 && b[y.l][y.c]>=x.d+a[y.l][y.c]) ^ user.cpp:42:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] y.d=x.d+a[y.l][y.c]; ^ user.cpp:42:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] y.d=x.d+a[y.l][y.c]; ^ user.cpp:43:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] b[y.l][y.c]=y.d; ^ user.cpp:43:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] b[y.l][y.c]=y.d; ^