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Leetcode 题目解析之 Next Permutation

Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.

2022-01-09
1

Gilbreath原理中的数学与魔术(一)——Gilbreath Shuffle & First Principle

从本期开始再次进入久违的数学魔术系列,这期给大家准备的是经典的数学魔术原理Gilbreath Principle!经过陆陆续续历时半年多才整理出了这个系列的全部数学原理,魔术内容以及视频拍摄,各位数学和魔术爱好者们千万不要错过,...

2021-09-27
1

Scrambled后的序列依然具有radical inversion的性质

原文中陈述了很多具体的例子,而缺乏了一些Halton序列本身的说明,使用场景、以及与其他序列使用对比的差异,故在此处进行补充

2021-09-26
1

LeetCode 0060 - Permutation Sequence

The set [1,2,3,…,n] contains a total of n! unique permutations.

2021-08-11
1

LeetCode 0031 - Next Permutation

Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.

2021-08-11
2

betadisper: PERMDISP procedure

PERMDISP procedure可分析multivariate homogeneity of group dispersions (variances)(组分散(方差)的多元同质性)。

2020-12-16
3

聊一聊置换检验Permutation test的原理

统计,是我们做研究不可或缺的一个工具,尽管有时候两组样本的某个指标的均值看起来相差很大,但是只有当两组样本的这个指标具有统计学差异时,我们才有信心说这两组样本确实有差异。我们在平时的研究中,用的较多的统计方法是...

2020-12-01
1

Codeforces Round #623 (Div. 2, based on VK Cup 2019-2020 - Elimination Round, Engine) C. Restoring

C. Restoring Permutation time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output You are given a sequence ...

2020-10-29
1

Codeforce 1255 Round #601 (Div. 2) C. League of Leesins (大模拟)

Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!

2020-10-28
1

2019 ICPC 南京网络赛 F Greedy Sequence

You're given a permutation aa of length nn (1 le n le 10^51≤n≤105).

2020-10-28
1