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@ -1,11 +1,61 @@
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import std/[strutils, sequtils, options, math, parseutils]
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import std/[strutils, sequtils, options, math, parseutils, sets]
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import ./common
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type Board = object
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entries: seq[string]
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checked: seq[int]
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let winningSets = [
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[0, 1, 2, 3, 4],
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[5, 6, 7, 8, 9],
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[10, 11, 12, 13, 14],
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[15, 16, 17, 18, 19],
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[20, 21, 22, 23, 24],
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[0, 5, 10, 15, 20],
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[1, 6, 11, 16, 21],
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[2, 7, 12, 17, 22],
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[3, 8, 13, 18, 23],
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[4, 9, 14, 19, 24]
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].mapIt(it.toHashSet())
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proc isBoardWinning(b: ref Board): bool =
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let s = b.checked.toHashSet()
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for w in winningSets:
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if w < s:
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return true
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return false
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proc squidBingo(inputLines: seq[string]): int =
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var input: seq[string] = inputLines
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let calledNumbers: seq[string] = input[0].split(',')
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input.delete(0..1)
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let calledNumbers: seq[string] = input[0].split ','
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input.delete 0..1
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echo calledNumbers
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# construct boards
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var boards: seq[Board]
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var board: Board = Board(entries: @[], checked: @[])
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for l in input:
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echo l
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if l.strip() == "":
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boards.add board
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echo board.entries
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board = Board(entries: @[], checked: @[])
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continue
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board.entries.add [l[0..1], l[3..4], l[6..7], l[9..10], l[12..13]].mapIt(it.strip())
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for n in calledNumbers:
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for b in boards:
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for i, e in b.entries:
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if n == e:
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# TODO: why can't I add here but I can add on 46?!
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b.checked.add i
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if b.isBoardWinning():
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# TODO: get unchecked entries
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# TODO: multiple their sum with last .checked
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return 9
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return 0
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let input = 4.loadInput()
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@ -13,25 +63,23 @@ time("squidBingo part 1"): echo input.squidBingo()
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when not defined(release):
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static:
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let testInput = """
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7,4,9,5,11,17,23,2,0,14,21,24,10,16,13,6,15,25,12,22,18,20,8,19,3,26,1
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let testInput = """7,4,9,5,11,17,23,2,0,14,21,24,10,16,13,6,15,25,12,22,18,20,8,19,3,26,1
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22 13 17 11 0
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8 2 23 4 24
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21 9 14 16 7
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6 10 3 18 5
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1 12 20 15 19
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22 13 17 11 0
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8 2 23 4 24
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21 9 14 16 7
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6 10 3 18 5
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1 12 20 15 19
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3 15 0 2 22
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9 18 13 17 5
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19 8 7 25 23
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20 11 10 24 4
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14 21 16 12 6
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3 15 0 2 22
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9 18 13 17 5
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19 8 7 25 23
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20 11 10 24 4
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14 21 16 12 6
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14 21 17 24 4
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10 16 15 9 19
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18 8 23 26 20
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22 11 13 6 5
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2 0 12 3 7
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""".strip().split('\n')
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14 21 17 24 4
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10 16 15 9 19
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18 8 23 26 20
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22 11 13 6 5
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2 0 12 3 7""".split('\n')
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doAssert testInput.squidBingo() == 4512
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