Compilare: main.c: In function 'fill': main.c:29:22: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | if ( mat[l + dlin[i]][c + dcol[i]] == k ) | ^ main.c:29:35: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | if ( mat[l + dlin[i]][c + dcol[i]] == k ) | ^ main.c:30:21: warning: array subscript has type 'char' [-Wchar-subscripts] 30 | fill( l + dlin[i], c + dcol[i], k, p ); | ^ main.c:30:34: warning: array subscript has type 'char' [-Wchar-subscripts] 30 | fill( l + dlin[i], c + dcol[i], k, p ); | ^ main.c:31:28: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | else if ( dist[l + dlin[i]][c + dcol[i]] == -1 ) { | ^ main.c:31:41: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | else if ( dist[l + dlin[i]][c + dcol[i]] == -1 ) { | ^ main.c:32:24: warning: array subscript has type 'char' [-Wchar-subscripts] 32 | enqueue( l + dlin[i], c + dcol[i] ); | ^ main.c:32:37: warning: array subscript has type 'char' [-Wchar-subscripts] 32 | enqueue( l + dlin[i], c + dcol[i] ); | ^ main.c:33:20: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | dist[l + dlin[i]][c + dcol[i]] = p + 1; | ^ main.c:33:33: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | dist[l + dlin[i]][c + dcol[i]] = p + 1; | ^