leetcode:Reverse Bits 本题目收获 移位(<<  >>), 或(|),与(&)计算的妙用 题目: Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in bin…

Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as00111001011110000010100101000000). Follow up:If this function i…

Reverse Bits Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 00111001011110000010100101000000). Follow up: If…

Reverse Bits Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as00111001011110000010100101000000). Follow up:If th…

题意:给定一个无符号32位整数,将其二进制形式左右反置,再以整型返回. 思路:循环32轮,将n往右挤出一位就补到ans的尾巴上. class Solution { public: uint32_t reverseBits(uint32_t n) { ; uint32_t ans = ; int i; ; i<; i++ ) { ans <<= ; ) ans |= ; n >>=; } return ans; } }; Reverse Bits…

Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as00111001011110000010100101000000). Follow up:If this function i…

1.首先我们了解一下keras中的Embedding层:from keras.layers.embeddings import Embedding: Embedding参数如下: 输入尺寸:(batch_size,input_length) 输出尺寸:(batch_size,input_length,output_dim) 举个例子:(随机初始化Embedding): from keras.models import Sequential from keras.layers import Emb…

Rotate Array 本题目收获: 题目: Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4]. 思路: 我的思路:新建一个数组存放旋转后的内容,但是怎么把原数组的内容存放在数组中,不清楚. leetcode/discuss思路: 思路一:新建数组,复制原…

一.FreeMarker简介 二.第一个FreeMark示例 2.1.新建一个Maven项目 2.2.添加依赖 2.3.添加存放模板的文件夹 2.4.添加模板 2.5.解析模板 2.6.运行结果 三.动态页面静态化 3.1.动态页面静态化的优点 3.2.动态页面静态化的问题 3.3.实现动态页面静态化 3.3.1.新建一个基于Maven的Web项目 3.3.2.添加依赖 3.3.3.创建文章POJO类 3.3.4.创建文章业务类 3.3.5.添加模板 3.3.6.添加Servlet生成静态页 3…

1.Java中哪些类是不能被继承的? 不能被继承的是那些用final关键字修饰的类.一般比较基本的类型或防止扩展类无意间破坏原来方法的实现的类型都应该是final的,在java中,System,String,StringBuffer等都是不能被继承的. 2.String是基本数据类型吗? 基本数据类型包括byte short char int  long float  double  boolean  . java.lang.String类是final类型的,因此不可以继承这个类,不能修改这个类…