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Category: Arrays

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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November 4, 2022 Arrays / Data Structure / dynamic programming

Minimum cost to cut the stick| (DP-50)

Problem Description: We are given a stick of length N and a CUTS array of size C. The stick has

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October 11, 2022 Arrays / Data Structure / Graph

Detect cycle in a directed graph (using DFS) : G 19

Problem Statement: Given a directed graph with V vertices and E edges, check whether it contains any cycle or not. 

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October 8, 2022 Arrays / Data Structure / dynamic programming

Matrix Chain Multiplication | Tabulation Method | (DP-49)

In the previous article, we learned the solution for the problem of “Matrix chain multiplication”. We had discussed the recursive

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September 21, 2022 Arrays / Data Structure / Graph

Number of Distinct Islands

Problem Statement: Given a boolean 2D matrix grid of size N x M. You have to find the number of

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September 3, 2022 Arrays / Data Structure / dynamic programming

Number of Longest Increasing Subsequences | (DP-47)

Problem Statement:  Number of Longest Increasing Subsequences Prerequisite: Longest increasing subsequence, Printing Longest Increasing subsequence Problem Link:  Given an array,

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September 3, 2022 Arrays / Data Structure / dynamic programming

Longest Bitonic Subsequence | (DP-46)

Problem Statement:  Longest Bitonic Subsequence Prerequisite: Longest increasing subsequence, Printing Longest Increasing subsequence Problem Link:  Given an array, ‘Arr’ of

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August 30, 2022 Arrays

Product of Array Except Itself

Problem Statement: Given an array arr[] of integers, you need to return the product of given array elements except including

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August 29, 2022 Arrays / Data Structure / Graph

Detect Cycle in an Undirected Graph (using DFS)

Problem Statement: Given an undirected graph with V vertices and E edges, check whether it contains any cycle or not. 

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August 27, 2022 Arrays / Data Structure / Graph

Detect Cycle in an Undirected Graph (using BFS)

Problem Statement: Given an undirected graph with V vertices and E edges, check whether it contains any cycle or not. 

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