Lux: My Computing Science Study Voyage

Table of Contents

[TOC]

LeetCode Problems & Solutions

LL : Linked list

Problems	Languages & Notes	Labels
🟢 0001. Two Sum	C
🟢 0027. Remove Element	Python
🟢 0035. Search Insert Position	Python
🟠 0050. Pow(x, n)	C
🟢 0058. Length of Last Word	C
🟠 0061. Rotate List	C	LL
🟢 0070. Climbing Stairs	Java
🟠 0074. Search a 2D Matrix	Python
🟠 0075. Sort Colors	C
🟢 0083. Remove Duplicates from Sorted List	C	LL
🟢 0121. Best Time to Buy and Sell Stock	C
🟢 0125. Valid Palindrome	C
🟢 0136. Single Number	C
🟢 0141. Linked List Cycle	C	LL
🟢 0175. Combine Two Tables	SQL
🟠 0176. Second Highest Salary	SQL
🟠 0177. Nth Highest Salary	SQL
🟢 0181. Employees Earning More Than Their Managers	SQL
🟢 0203. Remove Linked List Elements	C	LL
🟢 0206. Reverse Linked List	C	LL
🟠 0237. Delete Node in a Linked List	C	LL
🟢 0263. Ugly Number	C
🟢 0283. Move Zeroes	C
🟠 0289. Game of Life	Java
🟢 0292. Nim Game	C
🟢 0326. Power of Three	C
🟢 0344. Reverse String	C Python
🟢 0345. Reverse Vowels of a String	C
🟢 0485. Max Consecutive Ones	C
🟢 0495. Teemo Attacking	C Python
🟢 0541. Reverse String II	C
🟢 0577. Employee Bonus	SQL
🟢 0595. Big Countries	SQL
🟢 0704. Binary Search	Python
🟢 0709. To Lower Case	C
🟢 0836. Rectangle Overlap	C Python Java
🟢 0876. Middle of the Linked List	C	LL
🟠 0877. Stone Game	C
🟢 1119. Remove Vowels from a String	C
🟢 1137. N-th Tribonacci Number	Java
🟠 1227. Airplane Seat Assignment Probability	C Python
🟢 1290. Convert Binary Number in a Linked List to Integer	C	LL
🟢 1342. Number of Steps to Reduce a Number to Zero	C
🟢 1350. Students With Invalid Departments	SQL
🟢 1480. Running Sum of 1d Array	C
🟢 1486. XOR Operation in an Array	C
🟢 1512. Number of Good Pairs	C
🟢 1528. Shuffle String	C
🟢 1672. Richest Customer Wealth	Python
🟢 1683. Invalid Tweets	SQL
🟢 1716. Calculate Money in LeetCode Bank	C
🟢 1757. Recyclable and Low Fat Products	SQL
🟢 1929. Concatenation of Array	C Python
🟢 1935. Maximum Number of Words You Can Type	Python
🟢 1952. Three Divisors	C Python Java 🌟 LeetCode Discussion Page
🟢 2278. Percentage of Letter in String	C

Computer Science

COMP - Algorithms & Programming Techniques

COMP - Data Structures

COMP - Rabbit's Python Tutorials (Data Aspect)

COMP - Programming Fundamentals

Markdown Notes

• 1. "Hello World!"
  • 1.1 Comments
  • 1.2 The First C Program
  • 1.3 #include <...>
  • 1.4 Why Do We Need the "stdio.h"?
  • 1.5 What Is the "printf(...)"?
  • 1.6 Main Function
• 2. C Foundations
  • 2.1 Basic Data Types
  • 2.2 If Statements
  • 2.3 Loop Statements
  • 2.4 Switch, continue And break
  • 2.5 Struct
• 3. Functions in C Standard Libraries
• 4. Pointers and Addresses
  • 4.1 A Pointer Example
  • 4.2 Demonstrations
  • 4.3 No Dangling Pointer
• 5. Multiple Files and Arguments
• 6. Arrays and Strings
• 7. Linked Lists
• 8. Two ADTs
  • 8.1 Stacks
  • 8.2 Queues

Others CS-related Short Notes

• Map of CS
• Unix-like OS Commands

Mathematics

MATH - Information, Codes and Ciphers

PDF Notes LaTeX Source

• Chapter 1. Introduction
• Chapter 2. Error Detecting and Correcting Codes
• Chapter 3. Compression Coding
• Chapter 4. Information Theory
• Chapter 5. Algebra and Number Theory
• Chapter 6. Algebraic Coding
• Chapter 7. Cryptography (Ciphers)

Physics

PHYS - Introduction to Astronomy

Markdown Notes

• 1.1 Introduction to Astronomy
• 1.2 Introduction to Astrobiology
• 1.3 Key Concepts
• 1.4 Techniques of Astronomy
• 2.1 The Solar System
• 2.2 The Earth - Evolution of a habitable planet
• 2.3 Exploring the Solar System
• 2.4 Habitability in the Solar System
• 3.1 What is Life?
• 3.2 The History of Life on Earth
• 3.3 The Origin of Life
• 3.4 Life in the Solar System
• 4.1 Our Star, The Sun
• 4.2 Properties and Evolution of Stars
• 4.3 Extrasolar Planets
• 4.4 Habitability and Life on Exoplanets
• 5.1 Our Milky Way Galaxy
• 5.2 Recycling of Material in the Galaxy
• 5.3 Galaxies and their Evolution
• 5.4 Cosmology

Copyright

All rights reserved until further notice to change it.