Chingari Software Engineer Interview Questions and Answers

2 dsa questions of easy/medium

Q1. Asked two dsa questions of leetcodeeasy/medium
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Q1. Asked two dsa questions of leetcode easy/medium
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Q1. Asked one dsa question on tree and discussion on resume and dbms os
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Q1. Salary Discussion
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Easy to medium, can solve with leetcode medium

Q1. Number of islands count
Ans. 
Count the number of islands in a grid of '1's and '0's
• Iterate through the grid and for each '1' encountered, perform a depth-first search to mark all connected '1's as visited

• Increment the island count for each new island found

• Ensure to handle boundary cases and check for visited nodes
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Q2. First and last index of a particular element in an array
Ans. 
Find the first and last index of a specific element in an array of strings.
• Iterate through the array and keep track of the index of the first and last occurrence of the element.

• Return the first and last index once the iteration is complete.

• Example: Array ['apple', 'banana', 'apple', 'orange'], element 'apple' - First index: 0, Last index: 2.
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Q1. Design Questions to build a scalable micro service
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Q2. Salary Discussion
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Q1. Oops Inheritance and Incapsulation
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Q1. Concurrency related general question
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Q1. What are decorators
Ans. 
Decorators are functions that modify the behavior of other functions or methods.
• Decorators are used to add functionality to existing functions without modifying their code.

• They are commonly used in Python to modify the behavior of functions or methods.

• Decorators are often used for logging, authentication, caching, and more.

• Example: @staticmethod or @classmethod decorators in Python.
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Q2. What is python and is application
Ans. 
Python is a high-level programming language known for its simplicity and readability, commonly used for web development, data analysis, artificial intelligence, and more.
• Python is versatile and can be used for various applications such as web development, data analysis, artificial intelligence, scientific computing, and automation.

• It is known for its clean syntax and readability, making it a popular choice for beginner...read more
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Q3. What oops define it with coding examples
Ans. 
Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Encapsulation: bundling data and methods that operate on the data into a single unit

• Inheritance: creating new classes based on existing classes

• Polymorphism: the ability for objects to be treated as instances of their parent class

• Abstraction: hiding the complex implementation details and showing only th
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Q4. Write a code to print infinite fibonacci series
Ans. 
Use a loop to continuously calculate and print Fibonacci numbers
• Use a loop to calculate the next Fibonacci number by adding the previous two numbers

• Print each Fibonacci number as it is calculated

• Consider using a while loop to continuously calculate and print Fibonacci numbers
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Q5. Write a code to check palindrome using two pointer
Ans. 
Code to check palindrome using two pointers in an array of strings
• Initialize two pointers, one at the start of the string and one at the end

• Compare characters at the two pointers, moving them towards each other until they meet or cross

• If all characters match, the string is a palindrome
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