Xinyuan Mao

Xinyuan Mao

Math fuels logic, Physics sparks wonder, Coding builds dreams.

Posts by Tags

AP Macroeconomics

Macro Unit 19

2 minute read

Published:

International Trade.

Macro Unit 17-18

2 minute read

Published:

Phillips Curve, National Debt, and Fiscal Policy.

Macro Unit 16

2 minute read

Published:

Business Cycle and AD-AS Model.

Macro Unit 14-15 主线

4 minute read

Published:

Money Market, Loanable Funds Market, and Monetary Policy.

Macro Unit 12-13

7 minute read

Published:

GDP, Inflation, and Unemployment.

AP Physics C E&M

AP Physics C Mech

转动惯量表

less than 1 minute read

Published:

Rotational inertia for common shapes.

Andrew Ng

Neural Network

3 minute read

Published:

Intro to Neural Network.

Classification

1 minute read

Published:

Methods of Classification.

Linear Regression

4 minute read

Published:

Methods of solving Linear Regression.

Intro to AI

less than 1 minute read

Published:

Introduction to Machine Learning.

CORE

MY OI

3 minute read

Published:

OI 做题思路

My Math

3 minute read

Published:

对 MO 问题的各种解决方法合集。

MY OI

2 minute read

Published:

对 OI 问题的各种解决方法合集。

Coding

Use Mathematica in Python

less than 1 minute read

Published:

在 Python 中使用 Wolfram Mathematica 的计算能力。

Math

函数的极值

1 minute read

Published:

讲解了一些常用的函数极值处理手法。

2025 AIME II

9 minute read

Published:

对这套考场上做过 9 分的题，给出复盘与想法。

My Math

3 minute read

Published:

对 MO 问题的各种解决方法合集。

Lifting The Exponent

4 minute read

Published:

升幂引理（LTE）的介绍与应用。

Math 专题笔记

Lifting The Exponent

4 minute read

Published:

升幂引理（LTE）的介绍与应用。

Mathematica

Use Mathematica in Python

less than 1 minute read

Published:

在 Python 中使用 Wolfram Mathematica 的计算能力。

OI

Cycle Space 与 Cut Space

4 minute read

Published:

讲解了无向图的 cycle space 和 cut space 的性质，并且尝试在有向图的情况进行类比。

图论 1

5 minute read

Published:

最短路、优化建图、差分约束、MST、Tarjan、2-SAT、Euler 路。

高开省选 Day 6

3 minute read

Published:

网络流的原理和图论建模。

高开省选 Day 2

less than 1 minute read

Published:

沈吉滪的数据结构课！

MY OI

3 minute read

Published:

OI 做题思路

数据结构 6

less than 1 minute read

Published:

杂题选做。

字符串 2

7 minute read

Published:

SA、SAM、广义 SAM。

字符串

less than 1 minute read

Published:

集合——(K)MP、AC 自动机、Z 函数、Manacher、SA、SAM、广义 SAM。

字符串 1

12 minute read

Published:

(K)MP、AC 自动机、Z 函数、Manacher。

数据结构

less than 1 minute read

Published:

集合——Splay、LCT、分块、莫队、块状链表、可持久化数据结构、静态链分治、线段树合并、长链剖分、整体二分、CDQ 分治、点分治、点分树。

数据结构 5

9 minute read

Published:

静态链分治、线段树合并、长链剖分、整体二分、CDQ 分治、点分治、点分树

数据结构 4

less than 1 minute read

Published:

数据结构

数据结构 3

2 minute read

Published:

根号算法——分块 & 块状链表 & 莫队

斜率优化学习笔记

2 minute read

Published:

动态规划优化算法 - 斜率优化的详细介绍。

SA 学习笔记

1 minute read

Published:

字符串算法 - 后缀数组（Suffix Array）的详细介绍。

MY OI

2 minute read

Published:

对 OI 问题的各种解决方法合集。

对拍

less than 1 minute read

Published:

Windows 下对拍的方法介绍。

粉兔杯初赛

less than 1 minute read

Published:

经典贪心模型。

OI 专题笔记

斜率优化学习笔记

2 minute read

Published:

动态规划优化算法 - 斜率优化的详细介绍。

SA 学习笔记

1 minute read

Published:

字符串算法 - 后缀数组（Suffix Array）的详细介绍。

Tag1

TestPost

less than 1 minute read

Published:

这是一个 excerpt 嘿嘿

Tag2

TestPost

less than 1 minute read

Published:

这是一个 excerpt 嘿嘿

default

Hello World!

less than 1 minute read

Published:

Hello World!

专题笔记

探究

数学套题

2025 AIME II

9 minute read

Published:

对这套考场上做过 9 分的题，给出复盘与想法。

比赛技巧

对拍

less than 1 minute read

Published:

Windows 下对拍的方法介绍。

科研

题解

粉兔杯初赛

less than 1 minute read

Published:

经典贪心模型。

高开

高开省选 Day 6

3 minute read

Published:

网络流的原理和图论建模。

高开省选 Day 2

less than 1 minute read

Published:

沈吉滪的数据结构课！