| Arrays & Hashing |
|
|
|
| 1. Two Sum |
1. Two Sum |
${\color{green} Easy}$ |
Leet Code |
| 2. Container With Most Water |
11. Container With Most Water |
${\color{orange} Medium}$ |
Leet Code |
| 3. Three Sum |
15. Three Sum |
${\color{orange} Medium}$ |
Leet Code |
| 4. Remove Nth Node From End of List |
19. Remove Nth Node From End of List |
${\color{orange} Medium}$ |
Leet Code |
| 5. Contains Duplicate |
217. Contains Duplicate |
${\color{green} Easy}$ |
Leet Code |
| 6. Product of Array Except Self |
238. Product of Array Except Self |
${\color{orange} Medium}$ |
Leet Code |
| 7. Valid Anagram |
242. Valid Anagram |
${\color{green} Easy}$ |
Leet Code |
| Stack |
|
|
|
| 1. Valid Parentheses |
20. Valid Parentheses |
${\color{green} Easy}$ |
Leet Code |
| Linked List |
|
|
|
| 1. Merge Two Sorted Lists |
21. Merge Two Sorted Lists |
${\color{green} Easy}$ |
Leet Code |
| 2. Linked List Cycle |
141. Linked List Cycle |
${\color{green} Easy}$ |
Leet Code |
| 3. Reorder List |
143. Reorder List |
${\color{orange} Medium}$ |
Leet Code |
| 4. LRU Cache |
146. LRU Cache |
${\color{orange} Medium}$ |
Leet Code |
| 5. Reverse linked list |
206. Reverse linked list |
${\color{green} Easy}$ |
Leet Code |
| Binary Search |
|
|
|
| 1. Search in Rotated Sorted Array |
33. Search in Rotated Sorted Array |
${\color{orange} Medium}$ |
Leet Code |
| Greedy |
|
|
|
| 1. Maximum Subarray |
53. Maximum Subarray |
${\color{orange} Medium}$ |
Leet Code |
| DP |
|
|
|
| 1. Unique Paths |
62. Unique Paths |
${\color{orange} Medium}$ |
Leet Code |
| 2. Climbing Stairs |
70. Climbing Stairs |
${\color{green} Easy}$ |
Leet Code |
| 3. Edit Distance |
72. Edit Distance |
${\color{orange} Medium}$ |
Leet Code |
| 4. Decode Ways |
91. Decode Ways |
${\color{orange} Medium}$ |
Leet Code |
| 5. Word Break |
139. Word Break |
${\color{orange} Medium}$ |
Leet Code |
| 6. Maximum Product Subarray |
152. Maximum Product Subarray |
${\color{orange} Medium}$ |
Leet Code |
| 7. House robber |
198. House robber |
${\color{orange} Medium}$ |
Leet Code |
| 8. House robber II |
213. House robber II |
${\color{orange} Medium}$ |
Leet Code |
| 9. Longest Increasing Subsequence |
300. Longest Increasing Subsequence |
${\color{orange} Medium}$ |
Leet Code |
| 10. Coin Change |
322. Coin Change |
${\color{orange} Medium}$ |
Leet Code |
| 11. Combination Sum IV |
377. Combination Sum IV |
${\color{orange} Medium}$ |
Leet Code |
| 12. Longest Common Subsequence |
1143. Longest Common Subsequence |
${\color{orange} Medium}$ |
Leet Code |
| Sliding Window |
|
|
|
| 1. Best Time to Buy and Sell Stock |
121. Best Time to Buy and Sell Stock |
${\color{green} Easy}$ |
Leet Code |
| Two pointer |
|
|
|
| 1. Valid Palindrome |
125. Valid Palindrome |
${\color{green} Easy}$ |
Leet Code |
| Bit Manipulation |
|
|
|
| 1. Reverse Bits |
190. Reverse Bits |
${\color{green} Easy}$ |
Leet Code |
| 2. Number of 1 Bits |
191. Number of 1 Bits |
${\color{green} Easy}$ |
Leet Code |
| 3. Missing Number |
268. Missing Number |
${\color{green} Easy}$ |
Leet Code |
| 4. Counting Bits |
338. Counting Bits |
${\color{green} Easy}$ |
Leet Code |
| 5. Sum of Two Integers |
371. Sum of Two Integers |
${\color{orange} Medium}$ |
Leet Code |