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Category: Hashing

February 26, 2023 Hashing

Hashing | Maps | Time Complexity | Collisions | Division Rule of Hashing | Strivers A2Z DSA Course

Hashing: Let’s first try to understand the importance of hashing using an example: Given an array of integers: [1, 2,

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January 29, 2023 Arrays / Hashing

Find the highest/lowest frequency element

Problem Statement: Given an array of size N. Find the highest and lowest frequency element. Pre-requisite: Hashing Theory and  Counting

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July 11, 2022 Arrays / Data Structure / Hashing / Sorting

Contains Duplicate : Check if a value appears atleast twice

Problem Statement: Given an integer array nums, return true if any value appears at least twice in the array, and return

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April 3, 2022 Arrays / Data Structure / Hashing

Count Distinct Elements In Every Window

Problem Statement: “Given an array of integers and a number K. Find the count of distinct elements in every window

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March 31, 2022 Arrays / Data Structure / Hashing

Longest common span with same sum in binary array

Problem Statement: Given two binary arrays arr1[] and arr2[] of same size N. Find length of the longest common span

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March 20, 2022 Arrays / Data Structure / Hashing

Two Odd Occurring

Problem Statement: Find the two numbers which occur an odd number of times in the given unsorted array. Examples: Example

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March 20, 2022 Arrays / Data Structure / Hashing

One Odd Occurring

Problem Statement: Given an array of positive integers, where all elements are occurring even a number of times except one

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March 16, 2022 Arrays / Data Structure / Hashing

More than n/k Occurences of element in array

“Given an array of N integers, and an integer K. Write a program to find all the elements in an

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March 7, 2022 Hashing

What is Hashing?

In this article, we will learn about the most popular question “What is Hashing?” Before that, let’s try to think

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February 13, 2022 Hashing

Hashing : Applications

What is hashing?  Hashing refers to the concept of taking an arbitrary amount of data as an input, applying some

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