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April 30, 2020
#LeetCode: Check valid sequence from root to leaves in a BTree
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C heck If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree Given a binary tree where each path going from the root ...
#LeetCode: Binary Tree Maximum Path Sum
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G iven a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some startin...
April 28, 2020
#LeetCode: First Unique Number
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Y ou have a queue of integers, you need to retrieve the first unique integer in the queue. Implement the FirstUnique class: FirstUnique...
#JWT: Part 3 - Spring Boot project with Spring Security and JWT Example
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ALSO CHECK : Spring/JWT Interview Questions And Answers W e will develop a Spring boot project with Spring security and JWt from scratc...
#JWT: Part 2 - JWT Structure
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ALSO CHECK : Spring/JWT Interview Questions And Answers What is JWT token? JWT (JSON Web Token) is a safe, compact, and self-contained...
#JWT: Part 1 - Authorization Strategies, Real Life examples of Session and JWT Token
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ALSO CHECK : Spring/JWT Interview Questions And Answers Authorization Strategies HTTP is a stateless protocol that's why we need t...
April 27, 2020
#LeetCode: Maximal Square
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G iven a 2D binary matrix filled with 0's and 1's, find the largest square containing only 1's and return its area. Example :...
April 26, 2020
Yash Pandit and Khushi Mukherjee roped in for Ullu App's Love Festival..
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U llu App is coming up with another interesting web-series which is based on partner exchange. The online streaming platform is all set t...
#LeetCode: Longest Common Subsequence
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G iven two strings text1 and text2, return the length of their longest common subsequence. A subsequence of a string is a new string gene...
April 25, 2020
#LeetCode: Java Solution of Jump Game problem
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G iven an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represent...
April 17, 2020
Veronica Vanij bags Ullu App's Smartphone
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O nline Streaming platform Ullu App is leaving no stone unturned to woo the viewers during quarantine. They are making the lockdown exper...
Part 6: Elastic Search Interview Questions And Answers(Hands On)
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Explain Bool Query in ElasticSearch. A query that matches documents matching boolean combinations of other queries is called Bool Query. I...
Part 5: Elastic Search Interview Questions And Answers(Hands On)
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ALSO CHECK : All About Elastic Search How to check health of cluster and node? Start ElasticSearch and Kibana, and then open Kibana das...
April 16, 2020
Part 4: Elastic Search Interview Questions And Answers
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ALSO CHECK : All About Elastic Search What is ELK Stack and its contents? Enterprises, large or small nowadays come across information...
Part 3: Elastic Search Interview Questions And Answers
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ALSO CHECK : All About Elastic Search What is an Elasticsearch Analyzer? What are the various types of analyzers in Elasticsearch? Anal...
Part 2: Elastic Search Interview Questions And Answers
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ALSO CHECK : All About Elastic Search Explain the procedure to add or create an index in Elasticsearch Cluster? To add a new index, cr...
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