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Count Number of Pairs With Absolute Difference K

Count Good Meals

Dutch National Flag DNF

Boats to Save People

3Sum0 - Find three elements in an array that sum to a zero

3Sum - Classic

March 24, 2023 · 4 min ·  Tags List of tags for the post   sum ·  n-sum ·  2sum ·  two-pointers ·  Last updated: Aug 10, 2025

Two Sum

3Sum - Closest

2Sum 2 – Input array is sorted

4Sum

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