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【[国家集训队] Crash 的文明世界】
先写一个五十分的思路吧 首先这道题有一个弱化版 "[POI2008]STA Station" 相当于$k=1$,于是就是一个非常简单的树形$dp$的$up\ \ and\ \ down$思想 但是我们现在要求的是这个柿子了 $$\sum_{j=1}^ndis(i,j)^k$$ 感觉这个东西很组合数学 ...
分类:其他好文   时间:2019-01-01 21:06:25    阅读次数:189
LC 789. Escape The Ghosts
You are playing a simplified Pacman game. You start at the point (0, 0), and your destination is(target[0], target[1]). There are several ghosts on th ...
分类:其他好文   时间:2019-01-01 17:29:48    阅读次数:114
Lavavel 入口文件解读及生命周期
这里只贴index.php的代码, 深入了解的请访问 https://laravel-china.org/articles/10421/depth-mining-of-laravel-life-cycle ...
分类:其他好文   时间:2019-01-01 16:15:49    阅读次数:232
Leetcode 425. Word Squares
Problem: Given a set of words (without duplicates), find all word squares you can build from them. A sequence of words forms a valid word square if th ...
分类:其他好文   时间:2019-01-01 14:05:31    阅读次数:198
win10 装centos7 虚拟机
1.下载VMware Workstation 64版本 https://www.vmware.com/products/workstation-pro/workstation-pro-evaluation.html 2.下载CentOS-7-x86_64-DVD-1810 https://www.c ...
分类:Windows程序   时间:2019-01-01 13:19:03    阅读次数:231
321. Create Maximum Number (c++ ——> lexicographical_compare)
Given two arrays of length m and n with digits 0-9 representing two numbers. Create the maximum number of length k <= m + n from digits of the two. Th ...
分类:编程语言   时间:2018-12-31 21:59:17    阅读次数:123
134. Gas Station
There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it cost ...
分类:其他好文   时间:2018-12-31 19:04:52    阅读次数:147
HDU 1217 Arbitrage(最短路径,Floyd算法)
Problem Description Arbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into more than one unit of th ...
分类:编程语言   时间:2018-12-31 17:27:58    阅读次数:143
用群晖ds218play下载人人影视中的视频
一、安装人人影视客户端, 二、查找片源: 三、打开wireshark,并选择侦听: 四、点击“下载”后,在wireshark中搜索http协议以及get命令,找到后复制uri全路径,去处结尾http1.0 五、打开nas中的“Download Station”,粘贴第四步中的uri,按“下载”按钮 ...
分类:其他好文   时间:2018-12-31 14:44:07    阅读次数:673
LC 967. Numbers With Same Consecutive Differences
Return all non-negative integers of length N such that the absolute difference between every two consecutive digits is K. Note that every number in th ...
分类:其他好文   时间:2018-12-30 18:47:55    阅读次数:164
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