## Array

- [ ] [Two Sum](https://leetcode.com/problems/two-sum/)
- [ ] [Best Time to Buy and Sell Stock](https://leetcode.com/problems/best-time-to-buy-and-sell-stock/)
- [ ] [Contains Duplicate](https://leetcode.com/problems/contains-duplicate/)
- [ ] [Product of Array Except Self](https://leetcode.com/problems/product-of-array-except-self/)
- [ ] [Maximum Subarray](https://leetcode.com/problems/maximum-subarray/)
- [ ] [Maximum Product Subarray](https://leetcode.com/problems/maximum-product-subarray/)
- [ ] [Find Minimum in Rotated Sorted Array](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/)
- [ ] [Search in Rotated Sorted Array](https://leetcode.com/problems/search-in-rotated-sorted-array/)
- [ ] [3Sum](https://leetcode.com/problems/3sum/)
- [ ] [Container With Most Water](https://leetcode.com/problems/container-with-most-water/)

---

## Binary

- [ ] [Sum of Two Integers](https://leetcode.com/problems/sum-of-two-integers/)
- [ ] [Number of 1 Bits](https://leetcode.com/problems/number-of-1-bits/)
- [ ] [Counting Bits](https://leetcode.com/problems/counting-bits/)
- [ ] [Missing Number](https://leetcode.com/problems/missing-number/)
- [ ] [Reverse Bits](https://leetcode.com/problems/reverse-bits/)

---

## Dynamic Programming

- [ ] [Climbing Stairs](https://leetcode.com/problems/climbingstairs/)
- [ ] [Coin Change](https://leetcode.com/problems/coinchange/)
- [ ] [Longest Increasing Subsequence](https://leetcode.com/problems/longestincreasingsubsequence/)
- [ ] [Longest Common Subsequence](https://leetcode.com/problems/longest-common-subsequence/)
- [ ] [Word Break Problem](https://leetcode.com/problems/wordbreak/)
- [ ] [Combination Sum](https://leetcode.com/problems/combinationsumiv/)
- [ ] [House Robber](https://leetcode.com/problems/houserobber/)
- [ ] [House Robber II](https://leetcode.com/problems/houserobberii/)
- [ ] [Decode Ways](https://leetcode.com/problems/decodeways/)
- [ ] [Unique Paths](https://leetcode.com/problems/uniquepaths/)
- [ ] [Jump Game](https://leetcode.com/problems/jumpgame/)

---

## Graph

- [ ] [Clone Graph](https://leetcode.com/problems/clonegraph/)
- [ ] [Course Schedule](https://leetcode.com/problems/courseschedule/)
- [ ] [Pacific Atlantic Water Flow](https://leetcode.com/problems/pacificatlanticwaterflow/)
- [ ] [Number of Islands](https://leetcode.com/problems/numberofislands/)
- [ ] [Longest Consecutive Sequence](https://leetcode.com/problems/longestconsecutivesequence/)
- [ ] [Alien Dictionary (Leetcode Premium)](https://leetcode.com/problems/aliendictionary/)
- [ ] [Graph Valid Tree (Leetcode Premium)](https://leetcode.com/problems/graphvalidtree/)
- [ ] [Number of Connected Components in an Undirected Graph (Leetcode Premium)](https://leetcode.com/problems/numberofconnectedcomponentsinanundirectedgraph/)
---

## Interval

- [ ] [Insert Interval](https://leetcode.com/problems/insertinterval/)
- [ ] [Merge Intervals](https://leetcode.com/problems/mergeintervals/)
- [ ] [Non-overlapping Intervals](https://leetcode.com/problems/nonoverlappingintervals/)
- [ ] [Meeting Rooms (Leetcode Premium)](https://leetcode.com/problems/meetingrooms/)
- [ ] [Meeting Rooms II (Leetcode Premium)](https://leetcode.com/problems/meetingroomsii/)

---

## Linked List

- [ ] [Reverse a Linked List](https://leetcode.com/problems/reverselinkedlist/)
- [ ] [Detect Cycle in a Linked List](https://leetcode.com/problems/linkedlistcycle/)
- [ ] [Merge Two Sorted Lists](https://leetcode.com/problems/mergetwosortedlists/)
- [ ] [Merge K Sorted Lists](https://leetcode.com/problems/mergeksortedlists/)
- [ ] [Remove Nth Node From End Of List](https://leetcode.com/problems/removenthnodefromendoflist/)
- [ ] [Reorder List](https://leetcode.com/problems/reorderlist/)

---

## Matrix

- [ ] [Set Matrix Zeroes](https://leetcode.com/problems/setmatrixzeroes/)
- [ ] [Spiral Matrix](https://leetcode.com/problems/spiralmatrix/)
- [ ] [Rotate Image](https://leetcode.com/problems/rotateimage/)
- [ ] [Word Search](https://leetcode.com/problems/wordsearch/)

---

## String

- [ ] [Longest Substring Without Repeating Characters](https://leetcode.com/problems/longestsubstringwithoutrepeatingcharacters/)
- [ ] [Longest Repeating Character Replacement](https://leetcode.com/problems/longestrepeatingcharacterreplacement/)
- [ ] [Minimum Window Substring](https://leetcode.com/problems/minimumwindowsubstring/)
- [ ] [Valid Anagram](https://leetcode.com/problems/validanagram/)
- [ ] [Group Anagrams](https://leetcode.com/problems/groupanagrams/)
- [ ] [Valid Parentheses](https://leetcode.com/problems/validparentheses/)
- [ ] [Valid Palindrome](https://leetcode.com/problems/validpalindrome/)
- [ ] [Longest Palindromic Substring](https://leetcode.com/problems/longestpalindromicsubstring/)
- [ ] [Palindromic Substrings](https://leetcode.com/problems/palindromicsubstrings/)
- [ ] [Encode and Decode Strings (Leetcode Premium)](https://leetcode.com/problems/encodeanddecodestrings/)

---

## Tree

- [ ] [Maximum Depth of Binary Tree](https://leetcode.com/problems/maximumdepthofbinarytree/)
- [ ] [Same Tree](https://leetcode.com/problems/sametree/)
- [ ] [Invert/Flip Binary Tree](https://leetcode.com/problems/invertbinarytree/)
- [ ] [Binary Tree Maximum Path Sum](https://leetcode.com/problems/binarytreemaximumpathsum/)
- [ ] [Binary Tree Level Order Traversal](https://leetcode.com/problems/binarytreelevelordertraversal/)
- [ ] [Serialize and Deserialize Binary Tree](https://leetcode.com/problems/serializeanddeserializebinarytree/)
- [ ] [Subtree of Another Tree](https://leetcode.com/problems/subtreeofanothertree/)
- [ ] [Construct Binary Tree from Preorder and Inorder Traversal](https://leetcode.com/problems/constructbinarytreefrompreorderandinordertraversal/)
- [ ] [Validate Binary Search Tree](https://leetcode.com/problems/validatebinarysearchtree/)
- [ ] [Kth Smallest Element in a BST](https://leetcode.com/problems/kthsmallestelementinabst/)
- [ ] [Lowest Common Ancestor of BST](https://leetcode.com/problems/lowestcommonancestorofabinarysearchtree/)
- [ ] [Implement Trie (Prefix Tree)](https://leetcode.com/problems/implementtrieprefixtree/)
- [ ] [Add and Search Word](https://leetcode.com/problems/addandsearchworddatastructuredesign/)
- [ ] [Word Search II](https://leetcode.com/problems/wordsearchii/)

---

## Heap

- [ ] [Merge K Sorted Lists](https://leetcode.com/problems/mergeksortedlists/)
- [ ] [Top K Frequent Elements](https://leetcode.com/problems/topkfrequentelements/)
- [ ] [Find Median from Data Stream](https://leetcode.com/problems/findmedianfromdatastream/)

## Important Link:
[14 Patterns to Ace Any Coding Interview Question](https://hackernoon.com/14-patterns-to-ace-any-coding-interview-question-c5bb3357f6ed)