This is CS50x 2020, an older version of the course. See cs50.harvard.edu/x for the latest!

This is CS50x

OpenCourseWare

David J. Malan
malan@harvard.edu

Week 0 Scratch 😺
Week 1 C
Week 2 Arrays
Week 3 Algorithms
Week 4 Memory
Week 5 Data Structures
Week 6 Python 🐍
Week 7 SQL
Week 8 Information

Tracks
Android
Games
iOS
Web

Final Project

Academic Honesty
CS50 Certificate
FAQs
Staff
Syllabus

Ed Discussion for Q&A
Quick Start Guide

edX
iTunes U
YouTube

CS50 IDE
Gradebook
Manual Pages
Python Documentation
Style Guide

Changelog
Status Page

Communities
Discord Q&A
Ed Q&A
Facebook Group Q&A
Facebook Page
GitHub
Gitter Q&A
Instagram
LinkedIn Group
LinkedIn Page
Quora
Reddit Q&A
Slack Q&A
Snapchat
SoundCloud
Stack Exchange Q&A
Twitter
YouTube

Weeks

Scratch
C
Arrays
Algorithms
Memory
Data Structures
Python
SQL
Privacy