Simplify

摘要： Length of Last Word: Given a string s consists of upper/lower-case alphabets and empty space characters ’ ‘, return the length of las... 阅读全文

摘要： Find Pivot: Given an array of integers nums, write a method that returns the “pivot” index of this array. We define the pivot inde... 阅读全文

摘要： Find Bottom Left Tree Value: Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Input: 2 ... 阅读全文

摘要： Maximum Length of Repeated Subarray: Given two integer arrays A and B, return the maximum length of an subarray that appears in both ... 阅读全文

摘要： Maximum Subarray: Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For exa... 阅读全文

摘要： Reverse Words in a String: Given an input string, reverse the string word by word. For example, Given s = “the sky is blue”, r... 阅读全文

摘要： Implement strStr(): Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not pa... 阅读全文

摘要： import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGrou... 阅读全文

摘要： Symmetric Tree： Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this b... 阅读全文

摘要： socket的基本操作： （1）socket()函数： （2）bind()函数： （3）listen(),connect()函数； （4）accept()函数； （5）socket中的发送与接收函数： （6）close()函数： （7）服务器上调用socket函数： （8）客户端调用socket函数 阅读全文