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Valid Pattern Lock(dfs + 暴力）

Valid Pattern Lock Time Limit: 2 Seconds      Memory Limit: 65536 KB Pattern lock security is generally used in Android handsets instead of a password. The pattern lock can be set by joining points on a 3 × 3 matrix in a chosen order. The points of t…

DFS+模拟 ZOJ 3861 Valid Pattern Lock

题目传送门 /* 题意:手机划屏解锁,一笔连通所有数字,输出所有可能的路径: DFS:全排列 + ok () 判断函数,去除一些不可能连通的点:) */ #include <cstdio> #include <iostream> #include <algorithm> #include <cstring> #include <string> #include <map> #include <cmath> #include…

ACM学习历程—ZOJ 3861 Valid Pattern Lock（dfs）

Description Pattern lock security is generally used in Android handsets instead of a password. The pattern lock can be set by joining points on a 3 × 3 matrix in a chosen order. The points of the matrix are registered in a numbered order starting wit…

ZOJ 3861 - Valid Pattern Lock

3861 - Valid Pattern Lock Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%lld & %llu Submit Status Practice ZOJ 3861 Description Pattern lock security is generally used in Android handsets instead of a password. The pattern lock can b…

ZOJ Problem Set - 3861 Valid Pattern Lock（dfs)

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3861 这道题当时没做出来,后来经过队友提醒才做出来. 3*3的九宫格,给你其中n个点按下面要求连起来: 1. 给你的n个点都要激活(至少经过一次) 2. 如果点A,B相连后要经过另一个点C,则C在序列中的位置必须在A,B之前 如 1 7 4是不合法的 3.线段相交是没关系的,如 7 6 9 4 我是直接生成n个数的全排列,然后在所有排列里面去掉不合法的. #include…

浙江大学2015年校赛B题 ZOJ 3861 Valid Pattern Lock

这道题目是队友写的,貌似是用暴力枚举出来. 题意:给出一组数,要求这组数在解锁的界面可能的滑动序列. 思路:按照是否能够直接到达建图,如1可以直接到2,但是1不能直接到3,因为中间必须经过一个2. 要注意的假如2已结访问过,那么1就可以直接到2. 建图DFS,图要更新. Source Code: #include <stdio.h> #include <string.h> ], ans[], n, vis[], k, fun[][]; ][] = { {}, {,,,,,,,,,}…

ZOJ - 3861 Valid Pattern Lock 【全排列】

题目链接 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3861 思路 先生成全排列,然后判断哪些情况不符合的,剔除就好了 代码中 init() 部分 就是 先指明 哪两个数字之间 是必须有另外一个数字的 AC代码 #include <cstdio> #include <cstring> #include <ctype.h> #include <cstdlib> #include &…

ACM: FZU 2107 Hua Rong Dao - DFS - 暴力

FZU 2107 Hua Rong Dao Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u  Practice  Description Cao Cao was hunted down by thousands of enemy soldiers when he escaped from Hua Rong Dao. Assuming Hua Rong Dao is a narrow aisl…

ACM: Gym 100935G Board Game - DFS暴力搜索

Board Game Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u  Gym 100935G Description standard input/outputStatements Feras bought to his nephew Saleem a new game to help him learning calculating. The game consists of a boa…

Bypass pattern lock on Sony Xperia Z2 and backup all data

Yesterday she came to me with a Sony Xperia Z2 D6503. Guess what? She forgot the pattern so she could not unlock her phone.You guys could take a look at her phone as below: I installed Sony Companion and connected it to my workstation. All she want w…