CodingGame - Horse-racing Duals(easy)

就是給你一串數字,然後找出相差最小的差是多少
如果知道each_cons就很快可以解決

pi_array = []
min = 99999999999999999
@n = gets.to_i
@n.times do
    pi = gets.to_i
    pi_array << pi
end
new_pi = pi_array.sort

new_pi.each_cons(2) do |a,b|
    if min > (b-a)
        min = (b-a)
    end

end
puts min

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