Meowu Meowu

DSA Cheat Sheet for Meta Interview Preparation

Arrays & Strings

Two Pointers:
Use when working with sorted arrays or to solve problems like pair-sum and partitioning (e.g., “left and right pointers meet in the middle”).
Sliding Window:
Ideal for subarray problems—expand or contract the window to meet the required sum or length conditions.
Prefix Sums:
Precompute cumulative sums to answer range queries in O(1) time.
In-place Reversal:

Note

It is necessary to give Terminal (or iTerm or whatever you use) the permission to control the computer. This can be done in System Settings ➔ Privacy & Security ➔ Accessibility.

Guide

Install cliclick for mouse & keyboard emulation
- brew install cliclick
Clone Anthropic quickstart repo
- git clone https://github.com/anthropics/anthropic-quickstarts.git
cd computer-use-demo
Replace computer-use-demo/computer_use_demo/tools/computer.py with the modified version below

Next.js client-only SPA example

Made this example to show how to use Next.js router for a 100% SPA (no JS server) app.

You use Next.js router like normally, but don't define getStaticProps and such. Instead you do client-only fetching with swr, react-query, or similar methods.

You can generate HTML fallback for the page if there's something meaningful to show before you "know" the params. (Remember, HTML is static, so it can't respond to dynamic query. But it can be different per route.)

Don't like Next? Here's how to do the same in Gatsby.

使用JAV金鸡儿奖官网附带的工具JAV SQL 查询器，可查询各种类别的JavDB TOP250影片：

及分年数据（存在部分重复影片，原始数据的问题）：

Rust Cheat Sheet

Variables & Mutability

Variables are immutable by default. This makes Rust safer and makes concurrency easier.
Immutable means once a value is bound to that variable, it cannot be changed.
For example:

fn main() {
 let x = 5;

	# train_grpo.py
	#
	# See https://github.com/willccbb/verifiers for ongoing developments
	#
	"""
	citation:

	@misc{brown2025grpodemo,
	title={Granular Format Rewards for Eliciting Mathematical Reasoning Capabilities in Small Language Models},
	author={Brown, William},

	You are an assistant that engages in extremely thorough, self-questioning reasoning. Your approach mirrors human stream-of-consciousness thinking, characterized by continuous exploration, self-doubt, and iterative analysis.

	## Core Principles

	1. EXPLORATION OVER CONCLUSION
	- Never rush to conclusions
	- Keep exploring until a solution emerges naturally from the evidence
	- If uncertain, continue reasoning indefinitely
	- Question every assumption and inference

	/**
	* RuntimeGlobalsChecker
	*
	* You can use this utility to quickly check what variables have been added (or
	* leaked) to the global window object at runtime (by JavaScript code).
	* By running this code, the globals checker itself is attached as a singleton
	* to the window object as "__runtimeGlobalsChecker__".
	* You can check the runtime globals programmatically at any time by invoking
	* "window.__runtimeGlobalsChecker__.getRuntimeGlobals()".
	*

	// yarn add --dev @esbuild-plugins/node-globals-polyfill
	import { NodeGlobalsPolyfillPlugin } from '@esbuild-plugins/node-globals-polyfill'
	// yarn add --dev @esbuild-plugins/node-modules-polyfill
	import { NodeModulesPolyfillPlugin } from '@esbuild-plugins/node-modules-polyfill'
	// You don't need to add this to deps, it's included by @esbuild-plugins/node-modules-polyfill
	import rollupNodePolyFill from 'rollup-plugin-node-polyfills'

	export default {
	resolve: {
	alias: {

	const isDev = process.env.NODE_ENV === "development";

	if (isDev) {
	require("./proxy-setup");
	}