Leena AI Software Development Engineer Intern Interview Questions and Answers

A 90-minute coding test on HackerRank, which includes one medium, one easy, and one hard question.

Q1. What is the index of the first occurrence where a pattern string matches with a text string?
Add your answer
Q2. Given a string, how can we find the minimum length substring whose sum is greater than or equal to a specified target?
Add your answer

It was good 20 mcqs 3 coding questions

Q1. Dsa and core subjects like cn os
Add your answer
Q2. Dsa questions and core subjects
Add your answer

Q1. Basic family discussion and salary details
Add your answer

Medium to hard questions based on arrays, dp

Q1. Quick sort algorithm
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divides array into smaller sub-arrays based on a pivot element

• Recursively sorts sub-arrays

• Combines sorted sub-arrays to get final sorted array

• Time complexity: O(n log n) on average, O(n^2) worst case

• Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
Answered by AI
Add your answer
Q2. Modified rotate a matrix
Ans. 
Rotate a matrix by 90 degrees in place
• Transpose the matrix

• Reverse each row of the transposed matrix
Answered by AI
Add your answer

Aptitude was including both MCQs and Input

Q1. Technical interview 1 It revolved around core subjects Like OS, Oops, CNS, dbms etc,. And few basic questions on arrays
Add your answer
Q2. Difference between python and C
Ans. 
Python is a high-level, interpreted language known for its simplicity and readability, while C is a low-level, compiled language known for its speed and efficiency.
• Python is dynamically typed, while C is statically typed.

• Python has automatic memory management, while C requires manual memory management.

• Python is platform-independent, while C is platform-dependent.

• Python is commonly used for web development and data anal...read more
Answered by AI
Add your answer
Q3. Why C is faster than python
Ans. 
C is faster than Python due to its lower-level nature and direct hardware access.
• C is a compiled language, while Python is an interpreted language.

• C code is directly translated into machine code, while Python code is executed line by line.

• C has direct access to hardware, while Python relies on external libraries for such access.
Answered by AI
Add your answer
Q4. Write a program to count vowels in your name
Ans. 
A program to count vowels in a given name
• Create a function that takes a string as input

• Loop through each character in the string and check if it is a vowel (a, e, i, o, u)

• Increment a counter for each vowel found

• Return the total count of vowels
Answered by AI
Add your answer

Q1. Technical interview 2 Focuses on DSA
Add your answer
Q2. Write quick sort
Ans. 
Quick sort is a divide-and-conquer algorithm that sorts an array by partitioning it into smaller sub-arrays.
• Choose a pivot element from the array

• Partition the array into two sub-arrays based on the pivot element

• Recursively apply quick sort to the sub-arrays

• Combine the sorted sub-arrays to get the final sorted array
Answered by AI
Add your answer
Q3. Implement Linked list
Ans. 
Implement a linked list data structure in a programming language.
• Create a Node class with data and a reference to the next node

• Implement methods to add, remove, and search for elements in the linked list

• Handle edge cases like adding to an empty list or removing the last element
Answered by AI
Add your answer
Q4. All operations on Linked list
Ans. 
Operations on Linked list include insertion, deletion, traversal, and searching.
• Insertion: Add a new node at the beginning, end, or middle of the linked list.

• Deletion: Remove a node from the linked list based on a given key or position.

• Traversal: Visit each node in the linked list to perform operations or display data.

• Searching: Find a specific node in the linked list based on a given key or value.
Answered by AI
Add your answer
Q5. Basic machine learning algorithms
Add your answer

Q1. Basic fitment questions
Add your answer
Q2. Introduction and flexibility
Add your answer

Some Objective questions and 1 Coding Questions

Q1. Situation based questions on Coroutines
Add your answer
Q2. About Project Tech Stack Used and Questions on that
Add your answer

2 DSA questions Both are from DP

Q1. 2 Questions , 1 is DSA
Add your answer
Q2. Second question is Puzzle
Add your answer

Q1. Pointless basic questions is what they asked
Add your answer

Q1. They had this round for hours together
Add your answer