摘要：
Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't mat... 阅读全文
摘要：
最近想刷一下LeetCode练习一下数据结构算法之类的，先从水题开始吧题目是这样的Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as theH... 阅读全文