Comprehensive Collection of C Programming Examples

The best way to learn C programming is through practical exercises. This page contains some examples of basic concepts in C programming. It is recommended that you refer to the references in these examples and try to use them yourself. All the programs on this page have been tested and should run on all platforms.

Basic Examples of C Language

1. C "Hello, World!" Program

2. C program to print an integer (input by the user)

3. C program to add two integers 　 　 　　
   

4. C program to multiply two floating-point numbers

5. C program to find the ASCII value of a character

6. C program for finding quotient and remainder

7. C program to find the size of int, float, double, and char
   

8. Demonstration of C program using the long keyword

9. A C program to swap two numbers

C Language flow control and loop instance

10. A C program to check if a number is even or odd

11. A C program to check if a character is a vowel or consonant

12. A C program to find the largest number among three numbers

13. A C program to find the roots of a quadratic equation

14. A C program to check if a year is a leap year

15. A C program to check if a number is positive or negative

16. A C program to check if a character is a letter

17. A C program to calculate the sum of natural numbers

18. A C program to find the factorial of a number

19. A C program to generate a multiplication table

20. A C program to display the Fibonacci sequence

21. A C program to find the GCD (greatest common divisor) of two numbers

22. A C program to find the LCM of two numbers

23. A C program uses a loop to display characters from A to Z

24. A C program to calculate the number of digits in an integer

25. A C program to reverse a number

26. A C program to calculate the power of a number

27. A C program to check if a number is palindrome

28. A C program to check if a number is prime

29. A C program to display prime numbers between two time intervals

30. A C program to check Armstrong numbers

31. A C program to display Armstrong numbers between two intervals

32. A C program to display the factors of a number

C Language function instance

33. A C program uses switch ... case to make a simple calculator

34. A C program to display prime numbers between intervals

35. A C program, to check for prime numbers or Armstrong numbers using user-defined functions

36. A C program to check if a number can be represented as the sum of two prime numbers

37. A C program uses recursion to find the sum of natural numbers

38. A C program uses recursion to find the factorial of a number

39. A C program uses recursion to find GCD

40. A C program to convert binary numbers to decimal

41. A C program to convert octal numbers to decimal

42. A C program to convert binary numbers to octal

43. A C program uses recursion to reverse a sentence

44. A C program uses recursion to calculate powers

C Language pointer and array instance

45. A C program to calculate the average using an array

46. A C program to find the maximum element in an array

47. A C program to calculate the standard deviation

48. A C program uses multidimensional arrays to add two matrices

49. A C program uses multidimensional arrays to multiply two matrices

50. A C program to find the transpose of a matrix

51. A C program to multiply two matrices by passing two matrices to the function

52. A C program uses pointers to access array elements

53. A C program uses reference calling to arrange numbers in a circular order

54. A C program uses dynamic memory allocation to find the maximum number

C Language string instance

55. A C program to find the frequency of characters in a string

56. A C program to calculate the number of vowels, consonants, etc.

57. A C program to delete all characters except letters in a string

58. A C program to find the length of a string

59. A C program to concatenate two strings

60. A C program to copy a string without using strcpy()

61. A C program sorts elements in dictionary order (dictionary order)

C Language structure instance

62. A C program to store student information

63. A C program uses 'structure' to add two distances (in inches)-in feet units)

64. A C program to add two complex numbers by passing structure to the function

65. C Program to Calculate the Time Difference Between Two Time Periods

66. C Program Using Structures to Store Student Information

67. C Program, Used to Dynamically Store Data in Structures

C Language File (I/O) Example

68. C Program to Write Sentences to a File

69. C Program to Read a Line from a File and Display It

70. C Program to Display Its Own Source Code as Output

71. C Program to Print Pyramid and Patterns