Submission #31770604

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Source Code Expand

□ = Array.new(1500){[]}<<[[0,0]]
○ = 200.step(2,-2).map{|d|
	l = (d..1500).find{|l| □[l][0] }
	x,y = □[l].pop
	(x+d).step(x+l-d,d){|x|
		□[d]<<[x,y]
	}
	(y+d).step(y+l-d,d){|y|
		□[d]<<[x,y]
	}
	□[l-d]<<[x+d,y+d] if d<l
	next [x,y]
}.reverse
puts ○.map.with_index(1){|(x,y),r| "#{x+r} #{y+r}" }

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