I have these indexes: [3,1,1,2] And I need to append these items:

   [Item("beer", 4), Item("steak", 1), Item("hamburger", 1), Item("donut", 3)]

to list, to be like in this particular order

   [ Item("hamburger", 1),Item("steak", 1), Item("donut", 3),Item("beer", 4)]

Im doing it in python, i tried it many ways but none of it worked properly

CodePudding user response：

The following builds a priority queue, where the "indices" indicate the priority of each item:

>>> indices = [3, 1, 1, 2]
>>> items = [("beer", 4), ("steak", 1), ("hamburger", 1), ("donut", 3)]
>>> from bisect import bisect_left
>>> prio = []
>>> new = []
>>> for i, item in zip(indices, items):
...     index = bisect_left(prio, i)
...     prio.insert(index, i)
...     new.insert(index, item)
... 
>>> new
[('hamburger', 1), ('steak', 1), ('donut', 3), ('beer', 4)]