公司生日会生日礼物In the years before 2020, it was common for a large number of school children (20–30 or more) to physically colocate for their math lessons. And in many a class, students were asked to compute the probability that two of them had the sam…
旧金山字体This series of articles is devoted to the study of the construction activity of the main city of Silicon Valley — San Francisco. Charts and calculations were built with the help of Jupyter Notebook (Kaggle)该系列文章专门研究硅谷主要城市旧金山的建…
题意:3 * N的格子 有一些点是坏的 用1X1和1X2的砖铺有多少种方法 题解:重新学了下轮廓线 写的很舒服 #include <bits/stdc.h>
using namespace std;
typedef long long ll;int n, m;
int vis[30][5];
ll dp[25][1 << 3];void dfs(int num, int i, int state, int n…
lambda函数,函数符两个Lambda用户的故事 (A Tale of Two Lambda Users) 故事1:业余 (Tale #1: The Amateur) One moment everything is fine, then … Bam! Your Lambda function raises an exception, you get alerted and everything changes instantl…
ai 中 统计Today I plan to cover the following topics: Linear independence, special matrices, and matrix decomposition.今天,我计划涵盖以下主题:线性独立性,特殊矩阵和矩阵分解。 线性独立 (Linear independence) A set of vectors …
twitter数据分析If you’ve written data science articles or are trying to get started, finding the most popular topics is a big help in getting your articles read. Below are the steps to easily determine what these topics are using R and the results of the …
平均“命中率”是什么样的 (What an Average ‘Hit’ looks like) Before we break the song down, let us have a brief analysis of what the greatest hits of all time had in common. I have picked 1500 songs ( charting hits ) right from the ’50s to the’10s, spre…
流行编程语言There has never been a unanimous agreement on what the most popular programming languages are, and probably never will be. Yet we believe that there is merit in trying to come up with ways to rank the popularity of programming languages. It hel…
corba的兴衰意见 (Opinion) 目录 (Table of Contents) Introduction 介绍 Salary and Growth 薪资与增长 Summary 摘要 介绍 (Introduction) In the past five years, data science salary cumulative growth has varied between 12% in the United States, according to Glass…
通才与专家Throughout my 10-year career, I have seen people often spend their time and energy in passionate debates about what data science can deliver, and what data scientists do or do not do. I submit that these are the wrong questions to focus on when y…