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I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.
Join statements are used in SQL to combine data from two or more tables based on a related column.
JOIN keyword is used to combine tables
Types of joins include INNER, LEFT, RIGHT, and FULL OUTER
ON keyword is used to specify the related column
Example: SELECT * FROM table1 JOIN table2 ON table1.column = table2.column
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Valid parentheses check ensures every opening bracket has a corresponding closing bracket in the correct order.
Use a stack to track opening parentheses. Example: '(()' -> push '(', push '(', pop ')' -> stack: ['(']
For each closing parenthesis, check if the stack is not empty and matches the last opened. Example: '()' -> valid.
An empty stack at the end indicates all parentheses were matched. Example: '(()())' -...
Currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of nested functions, each taking a single argument.
Currying can be achieved using arrow functions in JavaScript.
Arrow functions automatically bind 'this' and do not have their own 'this' value.
Example: const add = a => b => a + b;
Example: const addFive = add(5); const result = addFive(3); // result ...
First round was aptitude with coding round it was easy
1st round was DSA round. Pretty easy
I appeared for an interview in Mar 2025, where I was asked the following questions.
Key DSA problems: Next Greater Element, Cycle in Linked List, Stock Trading, and Coin Change.
Next Greater Element: Find the next greater number for each element in an array. Example: For [4, 5, 2, 10], result is [5, 10, 10, -1].
Cycle in Linked List: Detect and remove a cycle using Floyd's Tortoise and Hare algorithm. If a cycle exists, find the start and remove it.
Best Time to Buy and Sell Stocks: Maximize profit by fi...
Retrieve the top 3 salaries from each department and calculate total working hours for each employee using SQL queries.
Use the ROW_NUMBER() function to rank salaries within each department: SELECT *, ROW_NUMBER() OVER (PARTITION BY department_id ORDER BY salary DESC) AS rank FROM employees.
Filter the results to get only the top 3 salaries: WHERE rank <= 3.
To calculate total working hours, use SUM() function: SELECT ...
I applied via Company Website and was interviewed in May 2021. There were 5 interview rounds.
3 questions 3 sum linked list missing sum
System design involves creating a high-level architecture of a software system, while HR principles focus on managing people effectively.
System design involves identifying components, defining their interactions, and ensuring scalability and reliability.
HR principles include hiring the right talent, providing training and development opportunities, and fostering a positive work culture.
Both system design and HR princip...
posted on 5 Feb 2025
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