Algorithm

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see how to find all subsets of set or power set in java. Problem Given a set of distinct integers, arr, return all possible subsets (the power set). For example: Input: nums = [1,2,3] Output: […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see how to find all permutations of the array in java. Problem 1 Given array of distinct integers, print all permutations of the array. For example: array : [10, 20, 30] Permuations are : […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see about how to count all paths from top left to bottom right of MxN matrix. Problem We need to count all paths from top left to bottom right of MxN matrix. You can […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this tutorial, we will see about Memoization example in java. Let me start with the question. Would you like to do same task again and again when you know that it is going to give you same […]

If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this post, we will see how to find Intersection of two linked lists. Problem Given two singly linked lists, find if two linked lists intersect. If they intersect, find intersection point. Solution Here is simple algorithm to […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see LRU cache implementation in java. [toc] Problem Design a Least recently used cache implementation in java. It should have below properties. bounded size: It should have bounded size to take care of memory […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this tutorial, we will see Find Longest Substring Without Repeating Characters in java. Problem We need to find Longest Substring Without Repeating Characters Solution Brute force solution Find all the substring and check the Longest Substring Without […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see about linear search in java. Linear search is simple sequential search in which target element is searched one by one in the array. If element is found in the array then index […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see Dijkstra algorithm for find shortest path from source to all other vertices. Problem You will be given graph with weight for each edge,source vertex and you need to find minimum distance from […]