RosettaCodeData/Task/Water-collected-between-towers/Visual-Basic-.NET/water-collected-between-towers-1.vb
2023-07-01 13:44:08 -04:00

37 lines
2.4 KiB
VB.net

' Convert tower block data into a string representation, then manipulate that.
Module Module1
Sub Main(Args() As String)
Dim shoTow As Boolean = Environment.GetCommandLineArgs().Count > 1 ' Show towers.
Dim wta As Integer()() = { ' Water tower array (input data).
New Integer() {1, 5, 3, 7, 2}, New Integer() {5, 3, 7, 2, 6, 4, 5, 9, 1, 2},
New Integer() {2, 6, 3, 5, 2, 8, 1, 4, 2, 2, 5, 3, 5, 7, 4, 1},
New Integer() {5, 5, 5, 5}, New Integer() {5, 6, 7, 8},
New Integer() {8, 7, 7, 6}, New Integer() {6, 7, 10, 7, 6}}
Dim blk As String, ' String representation of a block of towers.
lf As String = vbLf, ' Line feed to separate floors in a block of towers.
tb = "██", wr = "≈≈", mt = " " ' Tower Block, Water Retained, eMpTy space.
For i As Integer = 0 To wta.Length - 1
Dim bpf As Integer ' Count of tower blocks found per floor.
blk = ""
Do
bpf = 0 : Dim floor As String = "" ' String representation of each floor.
For j As Integer = 0 To wta(i).Length - 1
If wta(i)(j) > 0 Then ' Tower block detected, add block to floor,
floor &= tb : wta(i)(j) -= 1 : bpf += 1 ' reduce tower by one.
Else ' Empty space detected, fill when not first or last column.
floor &= If(j > 0 AndAlso j < wta(i).Length - 1, wr, mt)
End If
Next
If bpf > 0 Then blk = floor & lf & blk ' Add floors until blocks are gone.
Loop Until bpf = 0 ' No tower blocks left, so terminate.
' Erode potential water retention cells from left and right.
While blk.Contains(mt & wr) : blk = blk.Replace(mt & wr, mt & mt) : End While
While blk.Contains(wr & mt) : blk = blk.Replace(wr & mt, mt & mt) : End While
' Optionaly show towers w/ water marks.
If shoTow Then Console.Write("{0}{1}", lf, blk)
' Subtract the amount of non-water mark characters from the total char amount.
Console.Write("Block {0} retains {1,2} water units.{2}", i + 1,
(blk.Length - blk.Replace(wr, "").Length) \ 2, lf)
Next
End Sub
End Module