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  1. "hello world" program.
  2. C program take input from user by scanf.
  3. C program to add two integer
  4. find ASCII value of a character
  5. find Quotient and Remainder
  6. find size of data types.
  7. swap two number by using third variable or without using
  8. enter a no.by user and check whether number is odd or even.
  9. check whether an entered character is vowel or not.
  10. find roots of the quadratic equation. 
  11. C program to check whether year is leap or not.
  12.  C program to find the largest no. between 3 number.
  13. find the sum of natural number between any range.
  14. find the character is alphabet or not.
  15. C program to find the factorial of a given number.
  16. C program to display fibonacci series.
  17. C program to find HCF and LCM
  18. C program to print all characters in alphabet.
  19. C program to display a multiplication table.
  20. C program to count the number of digits in number
  21. C program to reverse a number and string
  22. Number is prime or not
  23. Calculate the power of a number
  24. Check number and string is palindrome or not
  25. Check number is armstrong number or not
  26. Find the Factors of the Number.
  27. Print star patter in different shapes
  28. Print number pattern in different shapes
  29. Make a simple calculator only +,-,*,and%
  30. Convert decimal into binary and vice versa
  31. Find largest number in an array
  32. Add and Multiply two matrix
  33. Access Array Element using Pointers
  34. Increment a number using Call By Reference
  35. Find frequency or count the number of character in string
  36. Find Length of String
  37. Count the characters and vowels in a string
  38. Concatenate strings
  39. Use String function

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