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I was interviewed before Sep 2023.
BST is a binary tree where left child is smaller and right child is greater. Add/delete ops maintain this property.
BST is a data structure used for searching, sorting, and storing data
Add operation: Traverse the tree and find the appropriate position to insert the new node
Delete operation: Find the node to be deleted, replace it with its inorder successor or predecessor, and delete the successor/predecessor node
Time co...
Copy a linked list with random pointers to random nodes in the list.
Create a new node for each node in the original list
Map the original nodes to their corresponding new nodes
Copy the value of the original node to the new node
Copy the random pointer of the original node to the new node using the mapping created earlier
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I am a software engineer with experience in developing web applications and a passion for problem-solving.
Experienced in developing web applications using languages such as Java, Python, and JavaScript
Proficient in using frameworks such as Spring, Django, and React
Skilled in problem-solving and troubleshooting
Strong communication and collaboration skills
Passionate about learning new technologies and keeping up with ind
I have experience in software development and have worked on various projects using different technologies.
Started my career as a software developer at XYZ company
Developed web applications using Java and Spring framework
Worked on a project for a client in the healthcare industry, developing a patient management system
Implemented RESTful APIs using Node.js and Express
Contributed to open source projects on GitHub
Current...
Times Internet interview questions for designations
I applied via Campus Placement and was interviewed before Nov 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed in Oct 2019. There were 5 interview rounds.
Find sum of k smallest numbers in a BST.
Traverse the BST in-order and add the k smallest numbers to a sum variable.
Use a priority queue to keep track of the k smallest numbers.
If k is greater than the number of nodes in the BST, return the sum of all nodes.
If k is 0, return 0.
Design algorithm and database for seat booking system of BookMyShow and handle failed payments.
Create a database with tables for movies, theaters, seats, bookings, and payments
Use a locking mechanism to prevent double booking of seats
If payment fails, release the locked seats and notify the user
Write a query to get the timestamp in SQL: SELECT CURRENT_TIMESTAMP;
Code for time stamp in C
Use the time.h header file
Call the time() function to get the current time in seconds
Convert the time to a string using strftime() function
Use the format string to specify the desired format of the time stamp
Rearrange array in consecutive pair multiplication in descending order.
Create a new array to store the multiplied values
Use a loop to iterate through the original array and multiply consecutive pairs
Write a compare function to sort the new array in descending order
Code to rearrange an array in maximum-minimum form.
Sort the array in descending order.
Create a new array and alternate between adding the maximum and minimum values from the sorted array.
Return the new array.
Time complexity: O(nlogn)
Space complexity: O(n)
stoi() function converts a string to an integer.
stoi() is a C++ function that takes a string as input and returns an integer.
It is used to convert a string of digits into an integer.
It can also handle negative numbers and ignore leading whitespace.
Example: int num = stoi("123"); // num is now 123
Code for finding the longest common substring in an array of strings.
Iterate through the first string and check for all possible substrings
Check if the substring is present in all other strings
Keep track of the longest common substring found so far
Return the longest common substring
Answers to common technical questions in a software engineering interview
A transaction in DBMS is a sequence of operations that must be treated as a single unit of work. ACID properties ensure reliability and consistency of transactions.
A thread is a lightweight process that shares memory and resources with other threads in the same process. A process is a separate instance of a program.
Common Linux commands include ls...
I applied via Recruitment Consultant and was interviewed before Jul 2020. There was 1 interview round.
I was interviewed in Oct 2016.
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