local Luan = require "luan:Luan.luan"
local error = Luan.error
local pairs = Luan.pairs or error()
local type = Luan.type or error()
local Math = require "luan:Math.luan"
local floor = Math.floor or error()


local Utils = {}

local function deep_copy(tbl)
	local rtn = {}
	for key, value in pairs(tbl) do
		rtn[key] = type(value)=="table" and deep_copy(value) or value
	end
	return rtn
end
Utils.deep_copy = deep_copy

function Utils.round(x)
	return floor( x + 0.5 )
end

Utils.cups = {
	[0] = "AA"
	[1] = "A"
	[2] = "B"
	[3] = "C"
	[4] = "D"
	[5] = "DD(E)"
	[6] = "DDD(F)"
	[7] = "G"
}

return Utils