Submission #422334

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Source Code Expand

n,q = gets.split.map(&:to_i)
 
$f = [*0..n]
 
def root(x)
 log = []
  (x=$f[x];log <<x) until $f[x] == x
 log.each { |y| $f[y] =x}
  x
end
 
q.times do
  p,a,b = gets.split.map(&:to_i)
 
  b,a = [a,b].shuffle
 
  case p
  when 0
    $f[root(a)] = $f[root(b)]
  when 1
    puts (root(a) == root(b)) ? 'Yes' : 'No'
  end
end

Submission Info

Compile Error

./Main.rb:7: warning: `<<' after local variable or literal is interpreted as binary operator
./Main.rb:7: warning: even though it seems like here document

Judge Result