kalasoo

let candidates = [
    '鬼舞双城',
    'ASR_C',
    '林打叶',
    'ggg_Flash',
    '奉皇涅槃',
    'AnnatarHe',
    '膜法小编',
    '猎奇小编',
    'lingersten',

kalasoo

# Just found an interesting stuff

x = [[]] * 4    # [[], [], [], []]
x[0] << 1       # or x[0] .push 1
# => [[1], [1], [1], [1]]

# Reason
x = [[]] * 4
puts x.each {|a| puts a.object_id } 
x = Array.new(4) { [] }