Loop Exercises

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Loop programming exercises and solutions in C

In programming, there exists situations when you need to repeat single or a group of statements till some condition is met. Such as - read all files of a directory, send mail to all employees one after another etc. These task in C programming is handled by looping statements.

Looping statement defines a set of repetitive statements. These statements are repeated with same or different parameters for a number of times. Looping statement is also known as iterative or repetitive statement.

C supports three looping statements.

for loop

while loop

do...while loop

In this exercise we will practice lots of looping problems to get a strong grip on loop. This is most recommended C programming exercise for beginners.

Always feel free to drop your queries, suggestions, hugs or bugs down below in the comments section. I always look forward to hear from you.

Required knowledge

Basic C programming, Relational operators, Logical operators, If else, For loop

List of loop programming exercises

1. Write a C program to print all natural numbers from 1 to n. - using while loop
   
   
2. Write a C program to print all natural numbers in reverse (from n to 1). - using while loop
   
   
3. Write a C program to print all alphabets from a to z. - using while loop
   
   
4. Write a C program to print all even numbers between 1 to 100. - using while loop
   
   
5. Write a C program to print all odd number between 1 to 100.
   
   
6. Write a C program to find sum of all natural numbers between 1 to n.
   
   
7. Write a C program to find sum of all even numbers between 1 to n.
   
   
8. Write a C program to find sum of all odd numbers between 1 to n.
   
   
9. Write a C program to print multiplication table of any number.
   
   
10. Write a C program to count number of digits in a number.
    
    
11. Write a C program to find first and last digit of a number.
    
    
12. Write a C program to find sum of first and last digit of a number.
    
    
13. Write a C program to swap first and last digits of a number.
    
    
14. Write a C program to calculate sum of digits of a number.
    
    
15. Write a C program to calculate product of digits of a number.
    
    
16. Write a C program to enter a number and print its reverse.
    
    
17. Write a C program to check whether a number is palindrome or not.
    
    
18. Write a C program to find frequency of each digit in a given integer.
    
    
19. Write a C program to enter a number and print it in words.
    
    
20. Write a C program to print all ASCII character with their values.
    
    
21. Write a C program to find power of a number using for loop.
    
    
22. Write a C program to find all factors of a number.
    
    
23. Write a C program to calculate factorial of a number.
    
    
24. Write a C program to find HCF (GCD) of two numbers.
    
    
25. Write a C program to find LCM of two numbers.
    
    
26. Write a C program to check whether a number is Prime number or not.
    
    
27. Write a C program to print all Prime numbers between 1 to n.
    
    
28. Write a C program to find sum of all prime numbers between 1 to n.
    
    
29. Write a C program to find all prime factors of a number.
    
    
30. Write a C program to check whether a number is Armstrong number or not.
    
    
31. Write a C program to print all Armstrong numbers between 1 to n.
    
    
32. Write a C program to check whether a number is Perfect number or not.
    
    
33. Write a C program to print all Perfect numbers between 1 to n.
    
    
34. Write a C program to check whether a number is Strong number or not.
    
    
35. Write a C program to print all Strong numbers between 1 to n.
    
    
36. Write a C program to print Fibonacci series up to n terms.
    
    
37. Write a C program to find one's complement of a binary number.
    
    
38. Write a C program to find two's complement of a binary number.
    
    
39. Write a C program to convert Binary to Octal number system.
    
    
40. Write a C program to convert Binary to Decimal number system.
    
    
41. Write a C program to convert Binary to Hexadecimal number system.
    
    
42. Write a C program to convert Octal to Binary number system.
    
    
43. Write a C program to convert Octal to Decimal number system.
    
    
44. Write a C program to convert Octal to Hexadecimal number system.
    
    
45. Write a C program to convert Decimal to Binary number system.
    
    
46. Write a C program to convert Decimal to Octal number system.
    
    
47. Write a C program to convert Decimal to Hexadecimal number system.
    
    
48. Write a C program to convert Hexadecimal to Binary number system.
    
    
49. Write a C program to convert Hexadecimal to Octal number system.
    
    
50. Write a C program to convert Hexadecimal to Decimal number system.
    
    
51. Write a C program to print Pascal triangle upto n rows.
    
    
52. Star pattern programs - Write a C program to print the given star patterns.
    
    
53. Number pattern programs - Write a C program to print the given number patterns.
    
    

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