cs50's profile picture. @Harvard's introduction to the intellectual enterprises of computer science and the art of #programming, taught by @davidjmalan. Verify at http://cs50.harvard.edu/x.

CS50

@cs50

@Harvard's introduction to the intellectual enterprises of computer science and the art of #programming, taught by @davidjmalan. Verify at http://cs50.harvard.edu/x.

Live from @Harvard at 1:30pm EDT, this is Week 6 of @CS50 on #Python. Open to anyone online. To attend in person some day, see cs50.ly/attend. This lecture will become part of CS50x 2026 on @edXOnline on January 1, 2026. On @Zoom at cs50.zoom.us/meeting/regist…. On @YouTube


🧩 The first-ever CS50x Puzzle Day in #London is this Friday, October 10, 2025 at 5:00 PM British Summer Time, hosted at @Meta by Professor @davidjmalan, Professor Daniel Wilson from @OxLifelongLearn, @UniofOxford, Professor Tom Crawford from Oxford (and University of Cambridge…

cs50's tweet image. 🧩 The first-ever CS50x Puzzle Day in #London is this Friday, October 10, 2025 at 5:00 PM British Summer Time, hosted at @Meta by Professor @davidjmalan, Professor Daniel Wilson from @OxLifelongLearn, @UniofOxford, Professor Tom Crawford from Oxford (and University of Cambridge…

Live from @Harvard at 1:30pm EDT, this is Week 5 of @CS50 on data structures and more. Open to anyone online. This lecture will become part of CS50x 2026 on @edXOnline on January 1, 2026. To attend in person some day, see cs50.ly/attend. On @Zoom at…


Live from @Harvard on Monday, September 29, 2025, this is Week 4 of @CS50 (on memory and more). Open to anyone online. This lecture will become part of CS50x 2026 on @edXOnline on January 1, 2026. On @YouTube at youtube.com/live/aQFbviJhe…. On @Zoom at cs50.zoom.us/meeting/regist…. To…


Live from @Harvard University at 1:30pm EDT, this is Week 3 of @CS50 on algorithms. Open to anyone online. (Or attend in person some day, per cs50.ly/attend.) Watch on @YouTube at youtube.com/live/4eN3_kbbh…. Register for @Zoom at cs50.zoom.us/meeting/regist….

cs50's tweet image. Live from @Harvard University at 1:30pm EDT, this is Week 3 of @CS50 on algorithms. Open to anyone online. (Or attend in person some day, per cs50.ly/attend.)  

Watch on @YouTube at youtube.com/live/4eN3_kbbh…. 

Register for @Zoom at cs50.zoom.us/meeting/regist….

Hello, world! @CS50 will again be offered at @UniofOxford through @OxLifelongLearn in Michaelmas and Hilary terms. To attend in person, register at conted.ox.ac.uk/courses/introd…. To attend online, register at conted.ox.ac.uk/courses/introd…. #education #community

cs50's tweet image. Hello, world! @CS50 will again be offered at @UniofOxford through @OxLifelongLearn in Michaelmas and Hilary terms. To attend in person, register at conted.ox.ac.uk/courses/introd…. To attend online, register at conted.ox.ac.uk/courses/introd….

#education #community

@CS50 is back in the United Kingdom! Join us on Friday, October 10, 2025, for the first-ever, in-person CS50x Puzzle Day in London at @Meta, with @OxLifelongLearn of @UniofOxford, with Professor @davidjmalan from @Harvard), Professor Daniel Wilson from Oxford, Professor Tom…


Live from @Harvard at 1:30pm EDT, this is Week 2 of @CS50 on arrays and more. Open to anyone online. (Or attend in person some day, per cs50.ly/attend.) This lecture will become part of CS50x 2026 on @edXOnline on January 1, 2026. On @Zoom at cs50.zoom.us/meeting/regist….…


CS50 repostou

"A look at how @CS50 has incorporated artificial intelligence (AI), including its new-and-improved rubber duck debugger, and how it has impacted the course already." 🦆 With Rongxin Liu et al. With thanks to @OpenAI, @Microsoft, and @GitHub. academy.openai.com/public/videos/…


Live from @Harvard at 1:30pm EDT, this is Week 1 of @CS50 on C. Open to anyone online. This lecture will become part of CS50x 2026 on @edXOnline on January 1, 2026. To attend in person some day, see cs50.ly/attend. On @YouTube at youtube.com/live/2Lg0W1_JM…. On @Zoom at…

cs50's tweet card. CS50 Fall 2025 - Lecture 1 - C (live, unedited)

youtube.com

YouTube

CS50 Fall 2025 - Lecture 1 - C (live, unedited)


Live from @Harvard University on Wednesday, September 3, at 1:30 PM EDT, this is @CS50's first lecture of Fall 2025, aka Week 0, on: Computer Science. Computational Thinking. Problem Solving: Inputs, Outputs. Representation: Unary, Binary, Decimal, ASCII, Unicode, RGB.…


Hello, world! @CS50's lectures in Sanders Theatre at @Harvard are open to the public, September 2025 – November 2025. Whether you are (or were!) a student or teacher of any of CS50's courses, or just CS50-curious, you are welcome to attend CS50's lectures in person in Cambridge,…

cs50's tweet image. Hello, world! @CS50's lectures in Sanders Theatre at @Harvard are open to the public, September 2025 – November 2025. Whether you are (or were!) a student or teacher of any of CS50's courses, or just CS50-curious, you are welcome to attend CS50's lectures in person in Cambridge,…

Last week, we hosted this year's @CS50 Educator Workshop, bringing together teachers from 14 countries to learn how to adopt or adapt CS50 for their own classrooms. 🌎 Over two days, educators explored CS50’s teaching resources, heard from CS50’s own @davidjmalan about the…

cs50's tweet image. Last week, we hosted this year's @CS50 Educator Workshop, bringing together teachers from 14 countries to learn how to adopt or adapt CS50 for their own classrooms. 🌎 Over two days, educators explored CS50’s teaching resources, heard from CS50’s own @davidjmalan about the…

This was the first-ever @CS50 Hackathon at @Meta in London 🇬🇧, with workshops on AI, Llama, Wearables, and Number Games by CS50’s own @davidjmalan and Rongxin Liu, Oxford’s own @tomrocksmaths, et al. 💻

cs50's tweet image. This was the first-ever @CS50 Hackathon at @Meta in London 🇬🇧, with workshops on AI, Llama, Wearables, and Number Games by CS50’s own @davidjmalan and Rongxin Liu, Oxford’s own @tomrocksmaths, et al. 💻
cs50's tweet image. This was the first-ever @CS50 Hackathon at @Meta in London 🇬🇧, with workshops on AI, Llama, Wearables, and Number Games by CS50’s own @davidjmalan and Rongxin Liu, Oxford’s own @tomrocksmaths, et al. 💻
cs50's tweet image. This was the first-ever @CS50 Hackathon at @Meta in London 🇬🇧, with workshops on AI, Llama, Wearables, and Number Games by CS50’s own @davidjmalan and Rongxin Liu, Oxford’s own @tomrocksmaths, et al. 💻
cs50's tweet image. This was the first-ever @CS50 Hackathon at @Meta in London 🇬🇧, with workshops on AI, Llama, Wearables, and Number Games by CS50’s own @davidjmalan and Rongxin Liu, Oxford’s own @tomrocksmaths, et al. 💻

Last month, @CS50’s team got together to say goodbye to Yuliia and Vlad as they prepared for new adventures. For the last two years, Yuliia has been CS50’s preceptor, helping manage CS50 both on campus and off, while Vlad worked on CS50's social media and video production.…

cs50's tweet image. Last month, @CS50’s team got together to say goodbye to Yuliia and Vlad as they prepared for new adventures. For the last two years, Yuliia has been CS50’s preceptor, helping manage CS50 both on campus and off, while Vlad worked on CS50's social media and video production.…
cs50's tweet image. Last month, @CS50’s team got together to say goodbye to Yuliia and Vlad as they prepared for new adventures. For the last two years, Yuliia has been CS50’s preceptor, helping manage CS50 both on campus and off, while Vlad worked on CS50's social media and video production.…
cs50's tweet image. Last month, @CS50’s team got together to say goodbye to Yuliia and Vlad as they prepared for new adventures. For the last two years, Yuliia has been CS50’s preceptor, helping manage CS50 both on campus and off, while Vlad worked on CS50's social media and video production.…
cs50's tweet image. Last month, @CS50’s team got together to say goodbye to Yuliia and Vlad as they prepared for new adventures. For the last two years, Yuliia has been CS50’s preceptor, helping manage CS50 both on campus and off, while Vlad worked on CS50's social media and video production.…

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