HarvardX: CS50X - Programming Project and Problem Sets

Topics include:

• Abstraction,
• Algorithms,
• Data structures,
• Encapsulation,
• Resource management,
• Security,
• Software Engineering,
• Web Development.

Languages taught include C, Python, SQL, and JavaScript plus CSS and HTML.

Problem sets inspired by real-world domains of biology, cryptography, finance, forensics, and gaming.

Table of Contents

• Problem Set 1: C
  • hello
  • cash
  • credit
  • mario
    • less
    • more
• Problem Set 2: Crypto
  • caesar
  • vigenere
  • crack
• Problem Set 3: Forensics
  • whodunit
  • resize
    • less
    • more
  • recover
• Problem Set 4: Mispellings
  • speller
    • hashtable
    • trie
• Problem Set 5: HomePage
• Problem Set 6: Déjà vu
  • sentimental
    • hello
    • cash
    • credit
    • mario
      • less
      • more
    • caesar
    • vigenere
    • crack
  • bleep
• Problem Set 7: Similarities
  • similarities
    • less
    • more
  • survey
• Problem Set 8: C$50 Finance
  • finance
• Bonus Problem Sets
  • music
  • sentiments
  • mashup
  • breakout
  • fifteen
  • find
    • less
    • more
  • water