| 1 |
Easy |
Two Sum |
Two Sum (Solution) |
|
Two Sum (Video) |
Two Sum (Description) |
| 2 |
Medium |
Add Two Numbers |
Add Two Numbers (Solution) |
|
|
Add Two Numbers (Description) |
| 3 |
Medium |
Longest Substring Without Repeating Characters |
Longest Substring Without Repeating Characters (Solution) |
|
|
Longest Substring Without Repeating Characters (Description) |
| 20 |
Easy |
Valid Parentheses |
Valid Parentheses (Solution) |
|
|
Valid Parentheses (Description) |
| 26 |
Easy |
Remove Duplicates from Sorted Array |
Remove Duplicates from Sorted Array (Solution) |
|
Remove Duplicates from Sorted Array (Video) |
Remove Duplicates from Sorted Array (Description) |
| 53 |
Medium |
Maximum Subarray |
Maximum Subarray (Solution) |
|
|
Maximum Subarray (Description) |
| 88 |
Easy |
Merge Sorted Array |
Merge Sorted Array (Solution) |
|
Merge Sorted Array (Video) |
Merge Sorted Array (Description) |
| 118 |
Easy |
Pascal's Triangle |
Pascal's Triangle (Solution) |
|
|
Pascal's Triangle (Description) |
| 141 |
Easy |
Linked List Cycle |
Linked List Cycle (Solution) |
|
Linked List Cycle (Video) |
Linked List Cycle (Description) |
| 189 |
Medium |
Rotate Array |
Rotate Array (Solution) |
|
|
Rotate Array (Description) |
| 206 |
Easy |
Reverse Linked List |
Reverse Linked List (Solution) |
Iterative with two pointers (prev, curr) |
Reverse Linked List (Video) |
Reverse Linked List (Description) |
| 217 |
Easy |
Contains Duplicate |
Contains Duplicate (Solution) |
|
Contains Duplicate (Video) |
Contains Duplicate (Description) |
| 242 |
Easy |
Valid Anagram |
Valid Anagram (Solution) |
|
|
Valid Anagram (Description) |
| 268 |
Easy |
Missing Number |
Missing Number (Solution) |
|
Missing Number (Video) |
Missing Number (Description) |
| 643 |
Easy |
Maximum Average Subarray I |
Maximum Average Subarray I (Solution) |
Sliding Window |
|
Maximum Average Subarray I (Description) |
| 701 |
Medium |
Insert into a Binary Search Tree |
Insert into a Binary Search Tree (Solution) |
|
|
Insert into a Binary Search Tree (Description) |
| 876 |
Easy |
Middle of the Linked List |
Middle of the Linked List (Solution) |
Two Pointers (Fast & Slow) |
|
Middle of the Linked List (Description) |
| 1518 |
Easy |
Water Bottles |
Water Bottles (Solution) |
Math |
|
Water Bottles (Description) |
| 1870 |
Medium |
Minimum Speed to Arrive on Time |
Minimum Speed to Arrive on Time (Solution) |
Binary Search |
|
Minimum Speed to Arrive on Time (Description) |
