Algorithms and Data Structures. Leetcode problems.

Arrays

1. Remove Duplicates from Sorted Array
2. Best Time to Buy and Sell Stock-II
3. Rotate Array
4. Contains Duplicate
5. Single Number
6. Intersection of Two Arrays
7. Plus One
8. Two Sum
9. Valid Sudoku

Strings

1. Reverse String
2. Reverse Integer
3. First Unique Character in a String
4. Valid Anagram
5. Valid Palindrome
6. String to Integer (atoi)
7. Implement strStr()
8. Longest Common Prefix
9. Palindrome Number
10. Roman to Integer
11. Valid Parentheses
12. Length of Last Word

Linked Lists

1. Delete Node in a Linked List
2. Remove Nth Node From the End of a Linked List
3. Reverse Linked List
4. Merge Two Sorted Lists
5. Linked List Cycle
6. Palindrome Linked List
7. Remove Duplicates from Sorted List
8. Intersection of Two Linked Lists
9. Remove Linked List Elements
10. Design HashSet
11. Design HashMap
12. Middle of the Linked List
13. Convert Binary Number in a Linked List to Integer
14. Add Two Numbers
15. Swap Nodes in Pairs
16. Rotate List