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ICFP Programming Contest 2026

@icfpcontest.bsky.social

77 followers 2 following 26 posts

A Programming Contest associated with ICFP and organized yearly since 1998! icfpcontest2025.github.io

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 27/07/2026

Just under 12 hours remain in this year's contest and the top five are all very close! Good luck in the last leg of the contest - we hope your little men behave themselves

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 25/07/2026

The lightning round has ended! We are releasing two more pieces of content: * Semester 4 - 4 new hard problems - on the problem sets page * A new instruction called "split" Read more about split here: icfpcontest2026.com/split

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 24/07/2026

This year's ICFP programming contest has begun! To get started, read the textbook: icfpcontest2026.com/textbook

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 16/07/2026

The ICFP programming contest is next week! This year's contest will focus on the little men running around inside your computer icfpcontest2026.com has everything you need to participate

screenshot from this year's ICFP programming contest. Full text:

How does a computer work?

As some of you likely know, inside your computer are millions (or even billions) of little men.

Those men are constantly dashing around to find and execute simple instructions. An instruction might, for example, tell a little man to add or subtract two numbers or send a message to another little man.

We call the set of instructions that a group of little men executes a program. The individual instructions of a program are simple, but a program's behavior can be surprisingly complex. Programs can solve difficult mathematical problems, simulate games, and communicate over long distances.

With enough time one could even write a program that simulates the behavior of a little man!

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 08/09/2025

We have frozen the public leaderboards, because we are in the final two hours of the contest. Explore quickly!

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 06/09/2025

The public leaderboards are now updating again. Hilariter hackate!

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 06/09/2025

The lightning round is now over, and a new batch of problems have been released! Check our task description page to see how to solve them! icfpcontest2025.github.io

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ICFP Programming Contest 2026 @icfpcontest.bsky.social · 06/09/2025

The lightning round ends in two hours! The public leaderboards have now been frozen to keep the lightning winners a mystery until our grand reveal at ICFP 2025 in Singapore. They will be back in 4 hours (i.e. two hours after the lightning round ends).