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I applied via campus placement at International Institute of Information Technology (IIIT), Allahabad and was interviewed before Oct 2023. There was 1 interview round.
Two questions asked which have difficulty level is high
I applied via Campus Placement and was interviewed in Oct 2024. There were 3 interview rounds.
Test contains 26 questions for me 13 are java based 13 are c++ based
Indexing in DBMS is a technique to improve the performance of queries by creating a data structure that allows for faster retrieval of data.
Indexes are created on columns in a database table to speed up the retrieval of rows that match a certain condition.
Types of indexes include clustered, non-clustered, unique, and composite indexes.
Examples of indexing techniques include B-tree, hash, and bitmap indexes.
Indexing can...
Check if two strings are anagrams by comparing the sorted characters in each string.
Sort the characters in both strings and compare if they are equal.
Ignore spaces and punctuation when comparing the strings.
Example: 'listen' and 'silent' are anagrams.
Example: 'hello' and 'world' are not anagrams.
Use a stack to simulate the recursive inorder traversal process
Create an empty stack to store nodes
Start with the root node and push it onto the stack
While the stack is not empty, keep traversing left and pushing nodes onto the stack
Once you reach a leaf node, pop it from the stack, print its value, and move to its right child
Repeat the process until all nodes have been visited
To make a class final, use the 'final' keyword in the class declaration.
Use the 'final' keyword before the 'class' keyword in the class declaration
A final class cannot be subclassed or extended
Final classes are often used for utility classes or classes that should not be modified
I applied via Referral and was interviewed in Jun 2024. There were 3 interview rounds.
Hackerrank Coding Test, Leetcode medium questions
HLD test, was asked to design an online coding platform like leetcode
Leaves of a tree are the nodes with no children in a tree data structure.
Traverse the tree and identify nodes with no children.
Use depth-first search or breadth-first search algorithms to find leaves.
Examples: In a binary tree, leaves are nodes with no left or right child.
In a general tree, leaves are nodes with no children in their child list.
The Lowest Common Ancestor (LCA) of a tree is the shared ancestor of two nodes farthest from the root.
Start from the root and traverse the tree to find the paths from the root to the two nodes.
Compare the paths to find the last common node between them, which is the LCA.
If one of the nodes is an ancestor of the other, then the ancestor node is the LCA.
I have worked on projects involving web development, mobile app development, and data analysis.
Developed a web application using React and Node.js for a client in the e-commerce industry
Created a mobile app using Flutter for a startup in the healthcare sector
Performed data analysis on customer behavior using Python and SQL for a marketing company
I completed internships at ABC Company and XYZ Company during my undergraduate studies.
Interned at ABC Company working on web development projects
Interned at XYZ Company assisting with software testing and quality assurance
Gained hands-on experience in coding, debugging, and problem-solving
Some database questions,some java questions .
JavaScript is a programming language used for web development, while jQuery is a library built with JavaScript to simplify HTML document traversal and manipulation.
JavaScript is a programming language, while jQuery is a library written in JavaScript.
JavaScript can be used for a wide range of tasks, while jQuery is mainly used for DOM manipulation and event handling.
JavaScript is a core technology for web development, w...
Different types of joins are used in SQL to combine rows from two or more tables based on a related column between them.
Inner Join: Returns rows when there is at least one match in both tables.
Left Join (or Left Outer Join): Returns all rows from the left table and the matched rows from the right table.
Right Join (or Right Outer Join): Returns all rows from the right table and the matched rows from the left table.
Full ...
Multithreading allows multiple threads to run concurrently, while exception handling deals with errors in a program.
Multithreading involves running multiple threads simultaneously to improve performance and responsiveness.
Threads share the same memory space but have their own program counter and registers.
Exception handling is a mechanism to handle errors or exceptional situations in a program.
It helps prevent the prog...
I applied via Job Portal and was interviewed in May 2024. There was 1 interview round.
React based
problem solving round
posted on 19 Dec 2023
I applied via LinkedIn and was interviewed in Nov 2023. There were 2 interview rounds.
Create subarrays with sum = 0 from given array of integers.
Iterate through the array and keep track of the running sum.
Store the running sum in a hashmap and check if the current sum - any previous sum equals 0.
If yes, then the subarray between those two indices has a sum of 0.
The left view of a binary tree is the set of nodes visible when the tree is viewed from the left side.
Traverse the tree in a level order manner and keep track of the first node at each level.
Use a queue to store nodes at each level and update the left view nodes accordingly.
Example: For a binary tree with root node 1, left child 2, and right child 3, the left view would be [1, 2].
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