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…