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Implement Rand10() Using Rand7()

Largest Palindrome Product

December 10, 2023 · 5 min ·  Tags List of tags for the post   enumeration ·  leetcode ·  math ·  Last updated: Aug 2, 2025

Sum of Absolute Differences in a Sorted Array

Check If It Is a Straight Line

November 23, 2023 · 3 min ·  Tags List of tags for the post   array ·  geometry ·  leetcode ·  math ·  Last updated: Jul 31, 2025

Count Nice Pairs in an Array

Remove Colored Pieces if Both Neighbors are the Same Color

Linked List Random Node

A Number After a Double Reversal

Count Odd Numbers in an Interval Range

Number of Zero-Filled Subarrays

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