Welcome to the Top-100 Programming Questions

This collection of the Top 100 Programming Questions is designed to cover every fundamental and advanced topic in programming. By thoroughly preparing these questions, you will gain a strong understanding of core concepts and achieve clarity in problem-solving.

Topics Covered:

• Basic Concepts - Fundamental programming principles
• Data Types - Working with numbers and strings
• Data Structures - Arrays, advanced array problems, and matrices
• Pattern Programs - Various pattern printing exercises

Company-Wise Topic Focus:

Topic	Companies That Focus on It
Basic Concepts	TCS, Infosys, Wipro, Cognizant
Data Types	Capgemini, Accenture, Infosys
Data Structures	Amazon, Microsoft, Google, Adobe
Pattern Programs	Infosys, TCS, Wipro, Capgemini

Frequently Asked Questions (FAQs)

1. What is the difference between a compiler and an interpreter?

A compiler translates the entire code into machine language at once before execution, while an interpreter translates the code line by line during execution.

2. How do you find if a number is prime?

A prime number is only divisible by 1 and itself. You can check for divisibility from 2 to the square root of the number to determine if it is prime.

3. What is an array, and how is it different from a linked list?

An array is a fixed-size data structure storing elements of the same type in contiguous memory, whereas a linked list consists of nodes connected through pointers, allowing dynamic memory allocation.

4. How do you reverse a string in programming?

You can reverse a string using built-in functions like str[::-1] in Python or using a loop to swap characters in other languages.

5. What is recursion, and give an example?

Recursion is a technique where a function calls itself to solve a problem. Example:

def factorial(n):  
    if n == 0:  
        return 1  
    return n * factorial(n - 1)

Mastering these questions will ensure a solid grasp of essential programming concepts. Start preparing now!