Number of unique elements in sorted array with repeated elements

Remove duplicates from unsorted array

Smallest Range Covering Elements from K Lists

Check if postordered array forms a binary search tree

Construct reverse sum hierarchy triangle from an array

December 2, 2024 · 5 min ·  Tags List of tags for the post   array ·  array-algo ·  Last updated: Aug 2, 2025

Find fixed point in sorted array

Largest Positive Integer That Exists With Its Negative

Reverse Prefix of Word

Missing Number

Count of Smaller Numbers After Self

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