Compilare: user.cpp: In function ‘void Read()’: user.cpp:21:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=1; ^ user.cpp:21:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=1; ^ user.cpp:23:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=2; ^ user.cpp:23:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=2; ^ user.cpp:25:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=3; ^ user.cpp:25:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=3; ^ user.cpp:27:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=0; ^ user.cpp:27:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j]=0; ^ user.cpp: In function ‘void bordare()’: user.cpp:34:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][0]=a[i][m+1]=-5; ^ user.cpp:34:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][0]=a[i][m+1]=-5; ^ user.cpp:36:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[0][i]=a[n+1][i]=-5; ^ user.cpp:36:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[0][i]=a[n+1][i]=-5; ^ user.cpp: In function ‘void Lee()’: user.cpp:60:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] x=vx[i]; y=vy[i]; ^ user.cpp:60:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] x=vx[i]; y=vy[i]; ^ user.cpp: In function ‘void Solve()’: user.cpp:103:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(a[i][j]==1) ^ user.cpp:103:23: warning: array subscript has type ‘char’ [-Wchar-subscripts]