Teachmint Software Development Engineer 3 Interview Questions and Answers

Q1. What React js?
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Q2. What is the difference between class and functional Component?
Ans. 
Class components use ES6 classes, while functional components are simpler functions. Both render UI in React.
• Class components can hold and manage local state using 'this.state'. Example: 'this.setState({ count: 1 })'.

• Functional components are stateless by default but can use hooks like 'useState' for state management. Example: 'const [count, setCount] = useState(0)'.

• Class components require 'render()' method to return ...read more
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Question on Linked list. array and string manipulation.

Q1. No any interview
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Q2. It's aptitude test only
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Two dynamic programming challenges at the hard level on LeetCode and 10 medium-level SQL challenge.

Python technical SQL basic

Q1. Check if string is palindrome
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2.5 Hours 2 Coding que and sql query and topin tech platform

Q1. Based on boolean matrix
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Q2. Find k closest node of given given node in a BST.
Ans. 
Find k closest nodes to a given node in a BST.
• Perform an inorder traversal of the BST to get a sorted list of nodes.

• Use a priority queue to keep track of the k closest nodes based on their absolute difference with the target node.

• Populate the priority queue with the first k nodes from the inorder traversal.

• For each subsequent node, calculate its absolute difference with the target node and compare it with the top eleme...read more
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Medium to hard level DSA from leetcode

Medium to hard level DSA from leetcode

Q1. General HR questions.
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