Check If N and Its Double Exist

Count Pairs in Two Arrays

Count Pairs Whose Sum is Less than Target

Count the Number of Incremovable Subarrays II

DI String Match

Duplicate Zeros

November 29, 2024 · 5 min ·  Tags List of tags for the post   array ·  leetcode ·  two-pointers ·  Last updated: Aug 2, 2025

Expressive Words

Find Maximum Removals From Source String

Find Positive Integer Solution for a Given Equation

Find the Integer Added to Array II

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