Yearly Archives: 2026

Title: Find a Pair with the Given ProductIn this guide, you'll learn how to find a pair of numbers in an array whose product...

Title: Find All Pairs with the Given DifferenceUnderstanding the ProblemGiven an array of integers and a target difference k, the goal is to find...

Title: Find a Pair with the Given DifferenceGiven an array of integers and a target difference, how do you quickly find two elements whose...

Title: Find All Pairs with the Given SumIn this guide, you'll learn how to find all pairs in an array of integers whose sum...

Title: Find a Pair with the Given SumIn this guide, you'll learn how to find two numbers in an array that add up to...

Title: Find Four Elements that Sum to a TargetIn this guide, you'll learn how to solve the classic 4Sum problem: given an array of...

Title: Find Three Elements that Sum to a TargetIn this guide, you'll learn how to find three elements in an array that add up...

Title: Find the Local Maxima in an ArrayA local maximum is an element that is strictly greater than its immediate neighbors. Unlike searching for...

Title: Find the Local Minima in an ArrayUnderstanding the ProblemA local minima in an array is an element that is smaller than or equal...

Title: Find the Previous Smaller Element in an ArrayIn this guide, you will learn how to find the previous smaller element for every entry...