Stage 3 · 45 min · Pro

Algorithmic challenges with lists

Practice data scanning, two-pointer techniques, handling edge cases, and optimizing list operations.

Objectives

Find the second largest distinct element
Merge two sorted sequences using two pointers
Rotate a list by a number of steps

This lesson is for Pro members

Algorithmic problems require not just code that works, but also choosing the right approach. These three challenges help you practice breaking down problems and controlling indices.

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