题目:给定一个非负整数 n ，请计算 0 到 n 之间的每个数字的二进制表示中 1 的个数，并输出一个数组。
示例 1：
// 输入: n = 2
// 输出: [0,1,1]
// 解释:
// 0 --> 0
// 1 --> 1
// 2 --> 10
示例 …
给定两个 01 字符串 a 和 b ，请计算它们的和，并以二进制字符串的形式输出。
输入为 非空 字符串且只包含数字 1 和 0。
示例 1：
// 输入: a = "11", b = "10"
// 输出: "101"
示例 2：
// 输 …题目:输入2个int型整数，它们进行除法计算并返回商，要求不得使 用乘号'*'、除号/及求余符号'%'。当发生溢出时，返回最大的整数值。假设 除数不为0。例如，输入15和 2，输出 15/2的结果，即 …
Background
As a reverse engineer, I often use IDA Pro in my daily work. This is not surprising, as IDA Pro is the industry standard (although alternatives such as radare2 and Hopper are becoming increasingly popular). One of the most powerful features of IDA that I recommended all reverse engineers is the Python extension, aptly named 'IDAPython', which exposes a large number of IDA …
Pelican is a static site generator, written in Python. Highlights include: - Write your content directly with your editor of choice in reStructuredText or Markdown formats - Includes a simple CLI tool to (re)generate your site - Easy to interface with distributed version control systems and web hooks - Completely static output is easy to host anywhere
Pelican’s feature highlights include: - Articles (e.g., blog posts …
zsh:no matches found
因为zsh缺省情况下始终自己解释这个firefox*，而不会传递给adb logcat来解释。 在~/.zshrc中加入: setopt no_nomatch, 然后进行source .zshrc命令
章节内容解密
package com.ushaqi.zhuishushenqi.reader.txtreader.activity;
public class ReaderNewActivity{
private void a(FineBookConfigBean bean){
}
}
示例数据
// 章节解密密码
auth.zhuishushenqi.com
productLine=1&
startSeqId=2669&
cp=567b60b6ea95f6ea479a177e&token=tyU2QCjdYHCNyeF8e6476ef1f13b652d13d25d2310eeca5f69e15570325cbac7fd0286494441df9829eb2de8a8b333a98f328b4ba39c4b5475118db133d1742945d11d88087f117c8a4227dce946dd92f13f914076840c97&
bookId=516531015a29ee6a5e0000e1&
chapterNum=1
环境搭建
frida-server : 12.8.19
下载frida-server并解压
xz -d frida-server-12.8.19-android-arm64.xz
adb push frida-server-12.8.19-android-arm64 /data/local/tmp/frida-server-arm64
修改权限并启动frida-server
adb shell
cd /data/local/tmp
chown root:root frida-server-arm64
chmod a+x frida-server-arm64
./frida-server-arm64
遇到的问题
Unable to preload: Unable to access process with pid 402 …
安装扩展
- Kotlin Language
- Code Runner
设置kotlinc路径
$ANDROID_STUDIO/plugins/Kotlin/kotlinc/bin
kotlinc -version
安装JDK
JDK安装完成后，设置路径，使其可以在命令行找到
java -version
如何利用grep和sed实现搜索和替换
grep -Erl "M\\('local" .|xargs sed -Ei "" "s/M\\('local/M\\('remote/g"
grep -Erl "http://loca" .|xargs sed -Ei "" "s/http:\/\/local/http:\/\/remote/g"
grep
- -E 将样式为延伸的普通表示法来使用
- -r 此参数的效果和指定“-d recurse”参数相同 …