Compilare: user.cpp: In function ‘int main()’: user.cpp:23:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[i][0]=1; ^ user.cpp:24:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[0][i]=1; ^ user.cpp:25:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[n+1][i]=1; ^ user.cpp:26:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[i][n+1]=1; ^ user.cpp:31:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[i][j]=0; ^ user.cpp:31:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[i][j]=0; ^ user.cpp:42:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[ps.lin][ps.col]=1; ^ user.cpp:42:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[ps.lin][ps.col]=1; ^ user.cpp:43:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(prim<=ultim && dr[pc.lin][pc.col]==0) ^ user.cpp:43:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(prim<=ultim && dr[pc.lin][pc.col]==0) ^ user.cpp:51:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dr[v.lin][v.col]==0) ^ user.cpp:51:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dr[v.lin][v.col]==0) ^ user.cpp:53:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[v.lin][v.col]=dr[p.lin][p.col]+1; ^ user.cpp:53:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[v.lin][v.col]=dr[p.lin][p.col]+1; ^ user.cpp:53:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[v.lin][v.col]=dr[p.lin][p.col]+1; ^ user.cpp:53:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[v.lin][v.col]=dr[p.lin][p.col]+1; ^ user.cpp:59:20: warning: array subscript has type ‘char’ [-Wchar-subscripts]