Boost Your Coding Skills with Hands-On Exercises in C: While and Do-While Loops

🔥 C While & Do-While Loop Programs (Practice Set 1)

🚀 Practice the most important C while loop and do-while loop programs asked in exams and interviews. These beginner-to-advanced problems will help you master loop concepts quickly.

1. C Program to Print Odd Numbers from 1 to N (While & Do-While)

   Learn how to print odd numbers using loops in C. A basic problem to understand loop iteration.

2. C Program to Print Even Numbers from 1 to N

   Understand how to display even numbers using while and do-while loops in C.

3. C Program to Print Uppercase Alphabets (A to Z)

   Print all uppercase letters using loops. Helps in understanding ASCII values and iteration.

4. C Program to Print Lowercase Alphabets (a to z)

   Simple loop program to print lowercase alphabets in C.

5. C Program to Print Numbers from 1 to 10

   Basic beginner example to understand number printing using loops.

6. C Program to Print Multiplication Table using While Loop

   Take user input and generate a multiplication table. Common interview question.

7. C Program to Check Positive, Negative or Zero

   Check number type continuously using loops until user exits.

8. C Program to Find Factorial using While Loop

   Calculate factorial using loops. Important for coding interviews.

9. C Program to Find Sum of First N Natural Numbers

   Compute sum from 1 to N using loop logic. Core beginner problem.

10. C Program to Print Prime Numbers from 1 to N

    Learn prime number logic using nested loops in C programming.

11. C Program to Print Armstrong Numbers from 1 to N

    Understand Armstrong number logic using loops and mathematical operations.

12. C Program to Print Leap Years using While Loop

    Find leap years using conditions and loops. Useful for real-world logic building.

13. C Program to Reverse a Number using While Loop

    Reverse digits of a number using loops. Frequently asked interview question.

📘 Practice/Assignment Set 2: C While & Do-While Loop Series Programs

1. C Program to Find Sum of Squares from 1 to N using While Loop
Learn how to calculate the sum of squares (1² + 2² + 3² + ... + N²) using while and do-while loops in C. This is a commonly asked logic-building problem in exams and coding interviews.

2. C Program to Find Sum of First N Natural Numbers using While Loop
Write a C program to calculate the sum of natural numbers (1 + 2 + 3 + ... + N) using loops. A basic and important program for beginners learning loop concepts.

3. C Program to Find Sum of Series (1/1! + 2/2! + ... + N/N!)
Practice a slightly advanced loop problem by computing the sum of factorial-based series using while or do-while loops. Helps strengthen logic and mathematical programming skills.

4. C Program to Find Sum of Harmonic Series (1 + 1/2 + 1/3 + ... + 1/N)
Learn how to calculate the harmonic series using loops in C. This program improves understanding of floating-point calculations and loop control.

5. C Program to Find Sum of Series (1 + 3²/3³ + 5²/5³ + ... up to N Terms)
Solve an advanced series-based problem using while loop logic. This type of question is frequently asked in competitive programming and technical interviews.