Array

Reversing an Array

Array Rotation

Array rotation is a common problem in computer science and programming that involves reordering the elements of an array. It has applications in various domains, including data manipulation, image processing, and algorithm design. In this article, we will explore the problem of array rotation, understand it with examples, and delve into different algorithms to solve it.

Finding Majority Element in Array 1

The majority element in an array is defined as the element that appears more than n/2 times, where n is the size of the array. Solving the problem of finding the majority element is a common task in computer science and has applications in various domains. In this article, we'll explore the problem, understand it with an example, delve into different algorithms to solve it.

Finding the Min Max Element

Find the Missing Number in Array

Find the missing number in an array from the range [0, n] using optimal approaches like XOR, sum formula, hashing, and more with C++ code, examples, dry run, and complexity analysis.

Counting Frequencies of Array Elements

Learn how to efficiently count frequencies of array elements using C++ and hash maps. Optimize from naive O(n²) to O(n) time with practical code and real-world use cases!

Remove Duplicates from Sorted Array

Learn how to remove duplicates from a sorted array using C++. Explore 3 efficient approaches (Two Pointers, Set, Frequency Map) with full code, explanation, and complexity analysis. Perfect for LeetCode!

Merge Two Sorted Arrays

Given two sorted arrays, the task is to merge them into a single sorted array. The goal is to accomplish this in an efficient manner, minimizing both time and space complexity.

Arrays

Solve array problems using efficient techniques like sorting, searching, and sliding window. Build strong problem-solving skills with step-by-step examples.