Compilare: main.cpp: In function 'void fill()': main.cpp:24:19: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | lin+=dlin[itr]; | ^~~ main.cpp:25:19: warning: array subscript has type 'char' [-Wchar-subscripts] 25 | col+=dcol[itr]; | ^~~ main.cpp:34:19: warning: array subscript has type 'char' [-Wchar-subscripts] 34 | lin-=dlin[itr]; | ^~~ main.cpp:35:19: warning: array subscript has type 'char' [-Wchar-subscripts] 35 | col-=dcol[itr]; | ^~~