Collection with fast removal/iteration/insertion that recycles objects in Android/Java programs?

I\'m programing a game for Android. As an example, the game might involve bullets, enemies, gems etc.which need to be:

DNF:dnf我48召唤觉醒了为什么不能学觉醒技能怎么办？

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How do I represent and work with n-bit vectors in Python?

In an assignment I am currently working on we need to work with bit vectors, but I am very unsure of how to do this in Python. They should be able to be from 4 bits to 20 bits. I have never worked wit

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Is k-d tree efficient for kNN search. k nearest neighbors search

I have to implement k nearest neighbors search for 10 dimensional data in kd-开发者_如何学JAVAtree.