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-- min, weight, receive
local function eliminate(budget, total_weight, elems)
if budget < 0 then
return
end
if total_weight == 0 then
return 0
end
local unit = budget / total_weight
for i, e in ipairs(elems) do
local allocated = unit * e.weight
if e.min > allocated then
e.receive = e.min
table.remove(elems, i)
budget = budget - e.min
total_weight = total_weight - e.weight
return eliminate(budget, total_weight, elems)
end
end
return unit
end
local function distribute(budget, elems)
local total_weight = 0
local remaining = {}
for _, v in pairs(elems) do
total_weight = total_weight + v.weight
table.insert(remaining, v)
end
local unit = eliminate(budget, total_weight, remaining)
if not unit then
for _, e in ipairs(remaining) do
e.receive = e.min
end
return false
end
for _, e in ipairs(remaining) do
e.receive = unit * e.weight
end
return true
end
return distribute
|
