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I was interviewed before Mar 2021.
To check if a number is a power of 2, we can use bitwise operations.
A power of 2 has only one bit set to 1, so we can use the bitwise AND operator to check if the number is a power of 2.
If n is a power of 2, then n & (n-1) will be 0.
For example, 8 (1000 in binary) is a power of 2, and 8 & 7 (0111 in binary) is 0.
Sort a stack without using another data structure
Use recursion to pop the top element and insert it at the bottom of the remaining stack
Repeat until the stack is sorted in ascending order
Time complexity: O(n^2), space complexity: O(n) due to recursion
Check if array has continuous increasing and decreasing values
Loop through the array and check if each element is greater than the previous one
Once you find the maximum element, check if the remaining elements are in decreasing order
If yes, return true else false
Design a cricinfo (LLD)
Identify the entities: players, teams, matches, scorecards, tournaments, etc.
Define the relationships between entities
Create a database schema to store the data
Implement APIs to fetch and update data
Design a UI to display the information
Consider scalability and performance
Ensure data security and privacy
I applied via Referral and was interviewed in Jul 2022. There were 4 interview rounds.
posted on 8 Feb 2025
I was interviewed before Feb 2024.
I applied via Naukri.com
Dependency injection in Laravel is a technique to manage class dependencies and improve code flexibility.
Dependency injection allows for easier testing and maintenance of code.
It involves passing dependencies to a class through its constructor or method parameters.
Laravel's container class manages the dependencies and resolves them when needed.
Example: injecting a database connection into a repository class.
Can also us...
To find the second largest number in a column in MySQL, you can use the ORDER BY and LIMIT clauses.
Write a SELECT statement to retrieve the column values in descending order using ORDER BY.
Use the LIMIT clause to limit the result set to the second row.
The value in the second row will be the second largest number in the column.
Magic Edtech is an innovative educational technology company.
Magic Edtech develops interactive learning platforms and tools.
They use advanced technologies like AI, AR, and VR to enhance the learning experience.
Their products include virtual classrooms, adaptive learning systems, and educational games.
Magic Edtech focuses on personalized learning and data-driven insights.
They collaborate with schools, universities, and
I applied via Naukri.com and was interviewed in Jul 2024. There were 2 interview rounds.
posted on 18 Jun 2024
Count occurrences of a letter in a string.
Iterate through each character in the string and count occurrences of the specified letter.
Use a hashmap to store the count of each letter.
Handle both uppercase and lowercase letters to ensure accurate counting.
posted on 2 Jan 2022
I applied via Naukri.com and was interviewed in Dec 2021. There were 4 interview rounds.
posted on 10 May 2020
I applied via Recruitment Consultant and was interviewed in Apr 2020. There were 4 interview rounds.
posted on 6 Oct 2024
Technical Support Engineer 3
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