Maximum 69 Number

Minimum Time Difference

Nth Digit

Orderly Queue

November 9, 2023 · 3 min ·  Tags List of tags for the post   leetcode ·  math ·  sorting ·  string ·  Last updated: Aug 2, 2025

Rotate Function

Valid Square

November 9, 2023 · 3 min ·  Tags List of tags for the post   geometry ·  leetcode ·  math ·  maths ·  Last updated: Aug 2, 2025

Sum of All Odd Length Subarrays

Count Number of Homogenous Substrings

Maximize Score After N Operations

Determine if a Cell Is Reachable at a Given Time

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