1. fibonacci number upto N
2. prime number between 2 numbers
3. count digits in a input
4. print each digit of input
5. print last to first digit
6. inverse of a number lec 23 pepcoding
7. rotate a number by k
8. GCD and LCM
9. prime factorization
10. Pattern 1 * from 1 to n triangle
11. Pattern 2 * triangle reverse
12. Pattern 3
13. pattern 4
14. pattern 5
15. pattern 6
16. Diamond pattern
17. Increasing triangle
18. nCr Triangle
19. unique pattern
20. advance pattern
21. advance pattern 2
22. advance Pattern 3
23. Swastik Pattern
24. W pattern
25. Sum OF 2 array
26. difference of 2 array
27. Dublicate brackets
28. Balanced brackets
29. Next greater Elements to the right
30. Stock Span
31. max Area of histogram
32. Stack span1
33. Sliding Window Maximum