Compilare: user.cpp: In function ‘void dfs(short int, short int, short int)’: user.cpp:28:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(x+dx[i]>=0 && x+dx[i]<N && y+dy[i]>=0 && y+dy[i]<M) { ^ user.cpp:28:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(x+dx[i]>=0 && x+dx[i]<N && y+dy[i]>=0 && y+dy[i]<M) { ^ user.cpp:28:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(x+dx[i]>=0 && x+dx[i]<N && y+dy[i]>=0 && y+dy[i]<M) { ^ user.cpp:28:59: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(x+dx[i]>=0 && x+dx[i]<N && y+dy[i]>=0 && y+dy[i]<M) { ^ user.cpp:29:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(x+dx[i]==endX && y+dy[i]==endY) { ^ user.cpp:29:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(x+dx[i]==endX && y+dy[i]==endY) { ^ user.cpp:33:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!viz[x+dx[i]][y+dy[i]] && d[x+dx[i]][y+dy[i]]>=D) { ^ user.cpp:33:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!viz[x+dx[i]][y+dy[i]] && d[x+dx[i]][y+dy[i]]>=D) { ^ user.cpp:33:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!viz[x+dx[i]][y+dy[i]] && d[x+dx[i]][y+dy[i]]>=D) { ^ user.cpp:33:59: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!viz[x+dx[i]][y+dy[i]] && d[x+dx[i]][y+dy[i]]>=D) { ^ user.cpp:34:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] dfs(x+dx[i],y+dy[i],D); ^ user.cpp:34:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] dfs(x+dx[i],y+dy[i],D); ^