2 posts tagged with "Two Pointers"

The Remove Linked List Elements problem is a fundamental linked list manipulation challenge that teaches essential pointer handling techniques. This problem is excellent for understanding when and why to use dummy nodes in linked list operations.

The Minimum Subarray Sum problem (also known as "Minimum Size Subarray Sum") is an excellent introduction to the sliding window technique. This problem demonstrates how we can optimize from a brute force O(n³) solution to an elegant O(n) solution.