[Solved] I have a array of hash in which I have user name and price and I wants to retrieve uniq order [closed]

by 


a = [{"user"=>"a1", "drink"=>"d1", "price"=>"60"},
 {"user"=>"a2", "drink"=>"d2", "price"=>"30"},
 {"user"=>"a3", "drink"=>"d3", "price"=>"30"},
 {"user"=>"a2", "drink"=>"d4", "price"=>"40"}]

 b = []

 a.each_with_object({}) do |x|
    count =  b.find {|y| y["user"] == x["user"] }
    if count.nil?
        b << x
    else
        count["price"] = count["price"].to_i + x["price"].to_i
        count["price"] = count["price"].to_s
    end
 end

puts b

1

solved I have a array of hash in which I have user name and price and I wants to retrieve uniq order [closed]