Frequency of Each Element in an array.

1. Swap Two Numbers

2. Reverse a String

3. Length of a String

4. Dynamically Allocate Memory

5. Sum of Elements in a Dynamically Allocated Array

6. Concatenate Two Strings

7. Copy One String to Another

8. Number of Vowels and Consonants in a String

9. Read and Display the Contents of Input

10. Count the Number of Lines in Input

11. Check if a Number is a Palindrome

12. Factorial of a Number

13. Sort an Array of Integers

14. Second Largest Element in an Array

16. Merge two sorted arrays.

17. Length of a String

18. Concatenate Two Strings

19. Reverse an array.

20. Check if Two Strings are Anagrams

21. Number of Words in a String

22. Largest Word in a String

23. Replace All Vowels in a String

24. Transpose of a Matrix

25. Multiply Two Matrices

26. Find the Determinant of a 2x2 Matrix

27. Check if a Matrix is Symmetric

28. Sum of Two Matrices

29. Difference Between Two Matrices

30. Divisors of a Given Number

31. Decimal to Binary Number

32. Checking Fibonacci Number

33. Fibonacci Numbers

34. GCD of Two Numbers

35. Sum of the Series 1² + 2² + ... + n²

36. Sum of the Series 1! + 2! + ... + n!

37. Sum of the Digits

38. Strong Number Checking

39. Sum of the Series `1 + x + x^2 + x^3 + ... + x^n`

40. Sum of the Series '1 + 1/2 + 1/3 + ... + 1/n'

41. Pascal’s Triangle

42. Roots of a Quadratic Equation

43. LCM of Two Numbers

44. Armstrong Number Check

45. Sum of the Squares of Natural Numbers

46. Sum of All Even Numbers

47. First n Prime Numbers

48. Perfect Number Check

49. Sum of the First 'n' Natural Numbers

50. Remove Duplicates from an Array