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Showing posts from June, 2020

DP - Find the minimum cost for tickets

Find Least Number of Unique Integers after k removals - Leetcode #1481

My Work From Home Desk Setup

Error connecting to 127.0.0.1:27017 -- target machine actively refused it - MongoDB Issue

Performing CRUD operation on MongoDB using Java

Constructing Binary Tree from In-order and Pre-order traversal in Java

Binary Tree - Traversal

Inversion of Binary Tree in Java - Using Recursion

Sending Whatsapp Message in Java using Twilio