- Sum of two Strings : Given two non-negative integers num1 and num2 represented as string, return the sum of num1 and num2.
- Two Sum Problem : Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
- Rotate and array : Given an array, rotate the array to the right by k steps, where k is non-negative.
- Is Unique : Implement an algorithm to determine if a string has all unique characters.
- Check Permutation : Given two strings, write a method to decide if one is a permutation of the other
- LeetCode 19 - Remove Nth node from End of List
- LeetCode 83 - Remove duplicates from sorted Link List
- LeetCode 86 - Partition List around a value X
- LeetCode 708 - Insert into a Sorted Circular Linked List
- LeetCode 1290 - Convert Binary Number in a Linked List to Integer
- Odd Even Linked List: Leet code 328
- Delete N Nodes After M Nodes of a Linked List: Leet code 1474
- Delete Node in a Linked List: Leet code 237
- Split Linked List in Parts: Leet code 725
- Remove Duplicates from Sorted List II: Leet code 82
- Reverse Nodes in k-Group: Leet code 25
- Reorder List: [Leet code 143](Reorder List)
- Next Greater Node In Linked List: Leet code 1019
- Swap Nodes in Pairs: Leet code 24
- Reverse Nodes in k-Group:Leet code 25
- Remove Linked List Elements: Leet code 203
- Valid Parentheses: Leet code 20
- Simplify Path: Leet code 71
- Min Stack: Leet code 155
- Basic Calculator: Leet code 224
- Remove Duplicate Letters: Leet code 316
- Mini Parser: Leet code 385
- Decode String: Leet code 394
- Remove K Digits: Leet code 402
- 132 Pattern: Leet code 456
- Next Greater Element I: Leet code 496
- Next Greater Element II: Leet code 503
- Number of Atoms: Leet code 726
- Asteroid Collision: Leet code 735
- Daily Temperatures: Leet code 739
- Backspace String Compare: Leet code 844
- Score of Parentheses: Leet code 856
- Decoded String at Index: Leet code 880
- Maximum Frequency Stack: Leet code 895
- Minimum Add to Make Parentheses Valid: Leet code 921
- Next Greater Node In Linked List: Leet code 1019
- Remove Outermost Parentheses: Leet code 1021