Submission #420803

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Source Code Expand

h,w = gets.split.map(&:to_i)

$map = []


pos = [0,0]
h.times do |j|
  $map << gets.chars
  pos = [$map[j].index('s'),j] if $map[j].index('s')
end

def f (x,y)
  return if x<0 or y<0
  return if $map[x].nil? or $map[x][y].nil?
  return if $map[x][y] == '#'

  if $map[x][y] == 'g'
    puts 'Yes'
    exit
  end

  $map[x][y] = '#'

  f(x-1,y)
  f(x+1,y)
  f(x,y-1)
  f(x,y+1)
  
end

f(pos[0], pos[1])
puts "No"

Submission Info

Compile Error

./Main.rb:1: warning: assigned but unused variable - w

Judge Result