Compilare: user.cpp: In function ‘void costminim()’: user.cpp:38:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] i2=i+dx[k]; ^ user.cpp:39:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] j2=j+dy[k]; ^ user.cpp:42:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]==-1) ^ user.cpp:42:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]==-1) ^ user.cpp:44:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] sl[i2][j2]=sl[i][j]+a[i2][j2]; ^ user.cpp:44:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] sl[i2][j2]=sl[i][j]+a[i2][j2]; ^ user.cpp:44:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] sl[i2][j2]=sl[i][j]+a[i2][j2]; ^ user.cpp:44:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] sl[i2][j2]=sl[i][j]+a[i2][j2]; ^ user.cpp:44:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] sl[i2][j2]=sl[i][j]+a[i2][j2]; ^ user.cpp:44:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] sl[i2][j2]=sl[i][j]+a[i2][j2]; ^ user.cpp:49:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]>sl[i][j]+a[i2][j2]) ^ user.cpp:49:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]>sl[i][j]+a[i2][j2]) ^ user.cpp:49:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]>sl[i][j]+a[i2][j2]) ^ user.cpp:49:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]>sl[i][j]+a[i2][j2]) ^ user.cpp:49:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]>sl[i][j]+a[i2][j2]) ^ user.cpp:49:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(sl[i2][j2]>sl[i][j]+a[i2][j2]) ^ user.cpp:51:26: warning: array subscript has type ‘char’ [-Wchar-subscripts]