46 lines
739 B
Nim
46 lines
739 B
Nim
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import lib/loader
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type
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Map = object
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rows: seq[string]
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proc `[]`(m: Map, x, y: int): bool =
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let row = m.rows[y]
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let colNum = x mod row.len
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result = (row[colNum] == '#')
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let data = Map(rows: loadStrings(3))
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proc partOne(dX, dY: int): int =
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var count, x, y = 0
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while y < data.rows.len:
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if data[x, y]:
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count += 1
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x += dX
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y += dY
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result = count
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proc partTwo(): int =
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let slopes = @[
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(1, 1),
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(3, 1),
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(5, 1),
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(7, 1),
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(1, 2),
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]
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var total = 1
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for slope in slopes:
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total *= partOne(slope[0], slope[1])
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result = total
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when isMainModule:
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echo "One: ", partOne(3, 1)
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echo "Two: ", partTwo()
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