Submission #1517225

---

Source Code Expand

r, c, k = gets.split.map(&:to_i)
ss = r.times.map{gets.chomp}
counts = ss.map{|s|
	s.reverse.chars.reduce([0]){|a, c|
		a << (c=='o' ? a[-1]+1 : 0)
	}
}.map{|a| a[1..-1].reverse}

p (k-1..r-k).map{|y|
	(0..c-(2*k-1)).count{|x|
		(-k+1..k-1).all?{|t|
			counts[y+t][x+t.abs] >= 2*(k-t.abs)-1
		}
	}
}.reduce(0, :+)

Submission Info

Compile Error

./Main.rb:4: warning: shadowing outer local variable - c

Judge Result