keygenme-py 解题思路 题目如下 点击 keygenme-trial.py 获取要破解的文件 py文件代码为 点击查看代码 #============================================================================# #============================ARCANE CALCULATOR===============================# #========================…

林炳文Evankaka原创作品.转载请注明出处http://blog.csdn.net/evankaka 摘要:本文主要讲了n皇后问题的解题思路,并分别用java和c++实现了过程,最后,对于算法改进,使用了位运算. 一.问题抛出与初步解题思路 问题描述:八皇后问题是一个以国际象棋为背景的问题:如何能够在 8×8 的国际象棋棋盘上放置八个皇后,使得任何一个皇后都无法直接吃掉其他的皇后?为了达到此目的,任两个皇后都不能处于同一条横行.纵行或斜线上. 转化规则:其实八皇后问题可以推广为更一般的n皇后…

阿里聚安全攻防挑战赛第三题Android PwnMe解题思路 大家在聚安全挑战赛正式赛第三题中,遇到android app 远程控制的题目.我们今天带你一探究竟,如何攻破这道题目. 一.题目 购物应用pwn (6分) 环境: 要求在ARM 64位Android手机上攻击成功,也可在模拟器(运行Google官方Android SDK提供的Google APIs ARM64 Android 7.0镜像)中攻击成功,其中镜像会打包提供,参见题目下载链接.模拟器执行命令参考如下:(qemu-system…

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution. For example, given array S = {-1 2…

Given a singly linked list, determine if it is a palindrome. Follow up:Could you do it in O(n) time and O(1) space? 问题:给定一个单向列表结构,判断它是不是回文的. 补充:是否可以在 O(n) 时间,O(1) 额外空间下完成? 解题思路: 对于数组,判断是否是回文很好办,只需要用两个指针,从两端往中间扫一下就可以判定. 对于单向列表,首先想到的是,将列表复制一份到数组中,然后用上面…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" Minimum window is "BANC". Note:If there is no such window i…

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note: Elements in a triplet (a,b,c) must be in non-descending order. (ie, a ≤ b ≤ c) The solut…

Given an array of n positive integers and a positive integer s, find the minimal length of a subarray of which the sum ≥ s. If there isn't one, return 0 instead. For example, given the array [2,3,1,2,4,3] and s = 7,the subarray [4,3] has the minimal…

Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words. For example, givens = "leetcode",dict = ["leet", "code"]. Return true because &…

Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2. Another example is &…