39 lines
880 B
Crystal
39 lines
880 B
Crystal
require "./common.cr"
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lines = File.read("day3_input").split("\n")
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lines.pop
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REGEX = /#([0-9]+) @ ([0-9]+),([0-9]+): ([0-9]+)x([0-9]+)/
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claims = {} of Int32 => Rectangle
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lines.each do |line|
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match = line.match(REGEX).not_nil!
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claim = match[1].to_i32
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x = match[2].to_i32
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y = match[3].to_i32
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width = match[4].to_i32
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height = match[5].to_i32
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claims[claim] = Rectangle.new(x, y, width, height)
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end
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claimed_coords = {} of Tuple(Int32, Int32) => Int32
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claims.values.each do |claim|
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claim.each_coord do |x, y|
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coord = {x, y}
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claimed_coords[coord] = (claimed_coords[coord]? || 0) + 1
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end
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end
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puts "Overlapping: #{claimed_coords.values.count &.>(1)}"
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claims.each do |k, v|
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count_overlapped = 0
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v.each_coord do |x, y|
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count_overlapped += 1 if claimed_coords[{x, y}] > 1
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end
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if count_overlapped == 0
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puts "No overlaps: #{k}"
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exit
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end
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end
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