FE Prep

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Start Here – FE Crash Course

100 handpicked problems in the right study order

Spring 2026 Exam

Practice the most recent exam with 12 questions

How to Pass the FE?

I lowkey suggest you read that before practicing :)

#	Title	Difficulty	Exam
409	Mario Kart Driver Item Collection	Hard	Spring 2026
410	Swap Pairs to Tail Recursively	Hard	Spring 2026
411	Infix to Postfix Evaluation 11	Med.	Spring 2026
412	BST Mystery Print Order	Easy	Spring 2026
413	Base 27 String Hash Function	Hard	Spring 2026
414	AVL Deletion With Double Rotation	Easy	Spring 2026
415	Binary Split With Linear Loop	Hard	Spring 2026
419	Big O to Days Runtime Estimate	Med.	Spring 2026
420	Solve Recurrence 3T(n-1) + 3n	Hard	Spring 2026
418	Recursive Chocolate Bar Slicer	Hard	Spring 2026
417	Recursive Bubble Sort	Hard	Spring 2026
416	Binary to Base 16	Med.	Spring 2026
397	Merge Two Bank Accounts	Med.	Fall 2025
398	The Mysterious K Shift	Med.	Fall 2025
399	Circular Battle Arena	Hard	Fall 2025
400	Recursive Binary Tree Sum	Easy	Fall 2025
401	Min-Heap Array Simulation	Med.	Fall 2025
402	Fixed Length Word Search	Hard	Fall 2025
403	Nested Loop Binary Search	Hard	Fall 2025
404	Cubic Root Runtime	Med.	Fall 2025
405	Sum of First 2n Cubes	Med.	Fall 2025
406	Recursive Mist Spray	Med.	Fall 2025
407	Trace Bubble Sort Iterations	Easy	Fall 2025
408	Bitwise Subset Sum	Insane	Fall 2025
385	Resize 2D Array by Tripling Columns	Med.	Summer 2025