[LeetCode] Random Pick Index 随机拾取序列
Given an array of integers with possible duplicates, randomly output the index of a given target ...
原文：[LeetCode] Random Pick with Weight 根据权重随机取点
Given an arraywof positive integers, wherew i describes the weight of indexi,write a functionpickIndexwhich randomlypicks an indexin proportionto its weight. Note: lt w.length lt lt w i lt pickIndexw ...
2018-10-13 23:05 5 7778 推荐指数：
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