# Category Archives: Queue

Given two binary trees, we have to check if each of their levels is an anagram of the other or not. Example:    Tree 1: Levelâ€¦ Read More
Coding Round: A variation of Knapsack Easy string manipulation problem A brute-force based string matching problem Technical Round 1: Finding the length of a Linked-Listâ€¦ Read More
A stack permutation is a permutation of objects in the given input queue which is done by transferring elements from the input queue to theâ€¦ Read More
Given a non-empty binary tree, print the average value of the nodes on each level. Examples:  Input : 4 / \ 2 9 / \â€¦ Read More
Given a stream of characters and we have to find first non repeating character each time a character is inserted to the stream.  Examples:  Inputâ€¦ Read More
Round I 1.Implement expiry cache system : every page in cache have id and expiry time (TTL of few seconds). After page expires it behavesâ€¦ Read More
Prerequisite : Page Replacement Algorithms In operating systems that use paging for memory management, page replacement algorithm are needed to decide which page needed toâ€¦ Read More
Given a string of lowercase alphabets and a number k, the task is to print the minimum value of the string after removal of â€˜kâ€™â€¦ Read More
Given an array and a positive integer k, find the first negative integer for each window(contiguous subarray) of size k. If a window does notâ€¦ Read More
Given a Binary Tree, print the nodes level wise, each level on a new line.  Output: 1 2 3 4 5 Recommended: Please solve itâ€¦ Read More
Senior Android developer(4-8 years) Qualification & Experience- Â· 4-8 years of experience in software development Â· Experience in Mobile App development in Android is aâ€¦ Read More
A Priority Queue is different from a normal queue, because instead of being a “first-in-first-out”, values come out in order by priority. It is anâ€¦ Read More
Prerequisite â€“ Circular Singly Linked List We have discussed basics and how to implement circular queue using array in set 1. Circular Queue | Setâ€¦ Read More
What is a Circular Queue? A Circular Queue is an extended version of a normal queue where the last element of the queue is connectedâ€¦ Read More
I want to share my interview experience with Paytm with all of you. Round-1 [1.5 hr] Brief introduction Discussion about project why are you usingâ€¦ Read More