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| Most Popular and liked - Technical Interview questions of all time |
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| Num | LeetCode Problem | Topic | Video Explanation | Asked By Company + Number of Times | Level |
| | | | | | | | | |
| 1 | Two Sum | Array | https://www.youtube.com/watch?v=NP9nLwKzXGA | Amazon - 108 | Apple - 43 | Google - 39 | Facebook - 22 | Bloomberg 13 | Easy |
| 2 | Best Time to Buy and Sell Stock | Array | https://www.youtube.com/watch?v=CCQBvgPages | Amazon - 62 | Microsoft - 19 | Bloomberg - 15 | Facebook - 12 | Google - 12 | Easy |
| 3 | Contains Duplicate | Array | https://www.youtube.com/watch?v=c_q_Pc2yg_0 | Amazon -17 | Apple - 15 | Google - 8 | Microsoft - 6 | Facebook - 5 | Easy |
| 4 | Contains Duplicate II | Array | https://www.youtube.com/watch?v=Te_MCY4uG-M | Amazon - 6 | Facebook - 5 | Google - 2 | Microsoft - 2 | Bloomberg - 3 | Easy |
| 5 | Product of Array Except Self | Array | https://www.youtube.com/watch?v=UxmLwxH-lhM | Amazon - 34 | Facebook - 13 | Microsoft - 13 | Apple - 8 | Google - 2 | Medium |
| 6 | Maximum Subarray | Array | https://www.youtube.com/watch?v=nr2djEYM7_A | Linked In - 39 | Amazon - 32 | Apple - 19 | Microsoft - 16 | Google - 15 | Medium |
| 7 | Maximum Product Subarray | Array | https://www.youtube.com/watch?v=OuRQ_TCCjsU | Linked In - 26 | Amazon - 21 | Microsoft - 4 | Google - 3 | Infosys - 2 | Medium |
| 8 | Find Minimum in Rotated Sorted Array | Array | https://www.youtube.com/watch?v=Dr69TSfv9JI | Amazon - 8 | Microsoft - 7 | Facebook - 5 | Uber - 3 | Apple - 2 | Medium |
| 9 | Search in Rotated Sorted Array | Array | https://www.youtube.com/watch?v=sE_4DzVc71w | Amazon - 27 | Facebook - 22 | Microsoft - 22 | Linked in - 21 | Apple - 5 | Medium |
| 10 | Two Sum - II | Array | https://www.youtube.com/watch?v=c9ywRRJcP1Y | Amazon - 10 | Apple - 4 | Google - 2 | Facebook - 2 | | Medium |
| 11 | 3 Sum | Array | https://www.youtube.com/watch?v=WtloSzFYvho | Amazon - 40 | Microsoft - 24 | Facebook - 21 | Apple - 16 | Google - 8 | Medium |
| 12 | Container With Most Water | Array | https://www.youtube.com/watch?v=wi8fqhNoV-Y | Amazon - 31 | Microsoft - 8 | Facebook - 8 | Apple - 5 | Google - 5 | Medium |
| 13 | Verifying an Alien Dictionary | Array | https://www.youtube.com/watch?v=8NoyVvm1v88 | Faccebook - 10 | Uber - 4 | Amazon - 2 | Linked In - 3 | Apple - 2 | Easy |
| 14 | Next Permutation | Array | https://www.youtube.com/watch?v=oc3OOtGmH6U | Facebook - 33 | Amazon - 19 | Google - 12 | Apple - 10 | Microsoft - 8 | Medium |
| 15 | Remove Duplicates from Sorted Array | Array | https://www.youtube.com/watch?v=0F49FLuzScU | Amazon - 3 | Apple - 2 | Microsoft - 6 | Google - 4 | Facebook - 4 | Medium |
| 16 | | Array | https://www.youtube.com/watch?v=aPD6g96fRO4 | Facebook - 23 | Amazon - 21 | Microsoft - 8 | Bloomberg - 6 | Google - 6 | Medium |
| 17 | Trapping Rain Water | Array | https://www.youtube.com/watch?v=AFl_VxaO_F0 | Amazon - 51 | Goldman Sachs- 44 | Bloomberg - 20 | Facebook - 19 | Microsoft - 12 | Hard |
| 18 | Median of Two Sorted Arrays | Array | https://www.youtube.com/watch?v=LRM4qiHLYCE | Amazon - 39 | Apple - 20 | Microsoft - 18 | Google - 15 | Bloomberg - 9 | Hard |
| 19 | Climbing Stairs | Dynamic Programming | https://www.youtube.com/watch?v=5mWBnYrdO70 | Amazon - 16 | Microsoft - 5 | Uber - 3 | Google - 2 | Apple - 2 | Easy |
| 20 | Coin Change | Dynamic Programming | https://www.youtube.com/watch?v=UOmlkfWMU6M | Amazon - 28 | Microsoft - 13 | Adobe - 6 | Apple - 6 | Google - 3 | Medium |
| 21 | Longest Increasing Subsequence | Dynamic Programming | https://www.youtube.com/watch?v=cixz99yxgWA | Google - 12 | Microsoft - 10 | Amazon - 6 | tiktok - 3 | Facebook - 3 | Medium |
| 22 | Longest Common Subsequence | Dynamic Programming | https://www.youtube.com/watch?v=lPnPdSIliII | DoorDash - 7 | Amazon - 6 | Google - 4 | Bloomberg - 3 | Microsoft - 2 | Medium |
| 23 | Word Break Problem | Dynamic Programming | https://www.youtube.com/watch?v=XD9tXO9HW40 | Amazon - 35 | Facebook - 20 | Apple - 6 | Microsoft - 6 | Google - 5 | Medium |
| 24 | Combination Sum | Dynamic Programming | https://www.youtube.com/watch?v=dJBbuDK4ZRk | Amazon - 5 | Google - 3 | Microsoft - 2 | Facebook - 3 | Apple - 4 | Medium |
| 25 | House Robber | Dynamic Programming | https://www.youtube.com/watch?v=jFmfYi_dvwQ | Amazon - 25 | Apple - 11 | Google - 5 | Microsoft - 5 | Bloomberg - 3 | Medium |
| 26 | House Robber II | Dynamic Programming | https://www.youtube.com/watch?v=c_rwra1aITY | Google - 11 | Tiktok - 2 | Amazon - 6 | Microsoft - 2 | Facebook - 2 | Medium |
| 27 | Decode Ways | Dynamic Programming | https://www.youtube.com/watch?v=ayGRvdnjFKg | Amazon - 9 | Tiktok - 7 | Google - 6 | Microsoft - 6 | Lyft - 5 | Medium |
| 28 | Unique Paths | Dynamic Programming | https://www.youtube.com/watch?v=klWLMgdMWCY | Google - 17 | Amazon - 10 | Microsoft - 9 | Facebook - 8 | Apple - 6 | Medium |
| 29 | Pascal's Triangle | Dynamic Programming | https://www.youtube.com/watch?v=f0EEHwaY3HY | Amazon - 13 | Microsoft - 4 | Google - 3 | Apple - 2 | Facebook - 2 | Easy |
| 30 | Generate Parentheses | Dynamic Programming | https://www.youtube.com/watch?v=VzMyeCMLdPI | Amazon - 38 | Facebook - 13 | Microsoft - 09 | Apple - 09 | Bloomberg - 07 | Medium |
| 31 | Jump Game | Dynamic Programming | https://www.youtube.com/watch?v=PVNLmjJaHW0 | Amazon - 21 | Facebook - 5 | Apple - 4 | Google - 3 | DoorDash - 2 | Medium |
| 32 | Jump Game II | Dynamic Programming | https://www.youtube.com/watch?v=d_1GRnMg_zs | Amazon - 12 | DoorDash - 04 | Bloomberg - 3 | Google - 3 | Microsoft - 3 | Medium |
| 33 | Regular Expression Matching | Dynamic Programming | https://www.youtube.com/watch?v=VFQddcCP46c | Microsoft - 18 | Amazon - 08 | Facebook - 06 | Google - 06 | Bloomberg - 03 | Hard |
| 34 | Race Car | Dynamic Programming | https://www.youtube.com/watch?v=TAXt_TkSNfw | Google - 92 | Amazon - 12 | Microsoft- 2 | Apple - 2 | | Hard |
| 35 | Clone Graph | Graph | https://www.youtube.com/watch?v=1aN0WWM0-Eo | Facebook - 28 | Bloomberg - 8 | Amazon - 7 | Google - 5 | Microsoft - 3 | Medium |
| 36 | Course Schedule | Graph | https://www.youtube.com/watch?v=ge9WKEsVue0 | Amazon - 34 | Google - 9 | Tiktok - 9 | Microsoft - 8 | Facebook - 7 | Medium |
| 37 | Course Schedule II | Graph | https://www.youtube.com/watch?v=_RWV4hZdmdk | Amazon - 40 | Google - 14 | Microsoft - 13 | Apple - 6 | Tik Tok - 4 | Medium |
| 38 | Pacific Atlantic Water Flow | Graph | https://www.youtube.com/watch?v=fTohawuMcvY | Amazon - 6 | Google - 6 | Microsoft - 4 | Uber - 3 | Facebook - 2 | Medium |
| 39 | Number of Islands | Graph | https://www.youtube.com/watch?v=H-2Nh2RXX6g | Amazon - 115 | Microsoft - 44 | Bloomberg - 29 | Facebook - 25 | Google - 16 | Medium |
| 40 | Longest Consecutive Sequence | Graph | https://www.youtube.com/watch?v=sJBf-JdWGhM | Amazon - 21 | Google - 12 | Microsoft - 9 | Bloomberg - 6 | Apple - 6 | Medium |
| 41 | Alien Dictionary (Leetcode Premium) | Graph | https://www.youtube.com/watch?v=1QbsN5JyPto | Airbnb - 18 | Amazon - 12 | Facebook - 9 | Google - 6 | Microsoft - 5 | Hard |
| 42 | Graph Valid Tree (Leetcode Premium) | Graph | https://www.youtube.com/watch?v=WU3-vo0MJW0 | Linked In - 9 | Google - 3 | Microsoft - 3 | Amazon - 2 | Bloomberg - 2 | Medium |
| 43 | Number of Provinces | Graph | https://www.youtube.com/watch?v=ff38kbREIX8 | Amazon - 22 | DoorDash - 8 | Apple - 2 | Google - 2 | Bloomberg - 3 | Medium |
| 44 | Find the Celebrity | Graph | https://www.youtube.com/watch?v=lqdgGNGPS68 | Amazon - 5 | Microsoft - 4 | Linked in - 4 | Facebook - 5 | Apple - 3 | Medium |
| 45 | | Graph | https://www.youtube.com/watch?v=NDInpfnTMos | Amazon - 7 | Facebook - 3 | Google - 2 | Microsoft - 2 | Pinetrest - 2 | Medium |
| 46 | Roman to Integer | Hashing | https://www.youtube.com/watch?v=qmkr61ySQwQ | Amazon - 46 | Adobe - 32 | Apple - 27 | Google - 25 | Facebook - 11 | Easy |
| 47 | Copy List with Random Pointer | Hashing | https://www.youtube.com/watch?v=vy7ZJ4TdyS8 | Facebook - 31 | Amazon - 30 | Microsoft - 7 | Bloomberg - 5 | Apple - 2 | Medium |
| 48 | Word Ladder | Hashing | https://www.youtube.com/watch?v=isLTjdCw52s | Amazon - 53 | Microsoft - 9 | Linked In - 7 | Facebook - 6 | Google - 2 | Hard |
| 49 | First Missing Positive | Hashing | https://www.youtube.com/watch?v=N8DefKVUIKw | Amazon - 18 | Microsoft - 10 | Adobe - 5 | Google - 3 | Apple - 3 | Hard |
| 50 | Insert Interval | Interval | https://www.youtube.com/watch?v=16YiKk6ga7Y | Google - 15 | Linked In - 8 | Facebook - 6 | Amazon - 4 | Microsoft - 2 | Medium |
| 51 | Merge Intervals | Interval | https://www.youtube.com/watch?v=n3F2v9f8OfY | Facebook - 87 | Amazon - 57 | Google - 31 | Apple - 22 | Microsoft - 17 | Medium |
| 52 | Non-overlapping Intervals | Interval | https://www.youtube.com/watch?v=y8nBFmPsAF8 | Facebook - 6 | Amazon - 5 | Microsoft - 3 | Apple - 5 | Google - 5 | Medium |
| 53 | Remove Interval | Interval | https://www.youtube.com/watch?v=YrB_zKEHgmQ | Google - 5 | Amazon - 3 | Microsoft - 1 | | | Medium |
| 54 | Meeting Rooms (Leetcode Premium) | Interval | https://www.youtube.com/watch?v=5nqLIwo0oC0 | Google - 3 | Amaozn - 2 | Microsoft - 6 | Facebook - 2 | Bloomberg - 2 | Easy |
| 55 | Meeting Rooms II (Leetcode Premium) | Interval | https://www.youtube.com/watch?v=sQkgNfoPrDw | Amazon - 58 | Google - 22 | Facebook - 20 | Bloomberg - 19 | Microsoft - 18 | Medium |
| 56 | Add Two Numbers | Linked List | https://www.youtube.com/watch?v=MYtp__JpTns | Amazon - 36 | Apple - 17 | Microsoft - 11 | Facebook - 11 | Google - 6 | Medium |
| 57 | Reverse a Linked List | Linked List | https://www.youtube.com/watch?v=FHhItaCZ2pE | Amazon - 15 | Apple - 8 | Microsoft - 7 | Google - 4 | Facebook - 3 | Easy |
| 58 | Detect Cycle in a Linked List | Linked List | https://www.youtube.com/watch?v=k-gTqlOBT1g | Amazon - 9 | Spotify - 4 | Apple - 2 | Microsoft - 2 | Google - 2 | Easy |
| 59 | Merge Two Sorted Lists | Linked List | https://www.youtube.com/watch?v=Bwymxn-n6XA | Amazon - 21 | Microsoft - 13 | Facebook - 12 | Apple - 4 | Bloomberg - 4 | Easy |
| 60 | Merge K Sorted Lists | Linked List | https://www.youtube.com/watch?v=SlKgDtpJnxg | Amazon - 54 | Facebook - 42 | Microsoft - 17 | Apple - 10 | Google - 8 | Hard |
| 61 | Remove Nth Node From End Of List | Linked List | https://www.youtube.com/watch?v=hZtAW3cp8vQ | Facebook - 18 | Amazon - 9 | Google - 4 | Microsoft - 4 | Apple - 3 | Medium |
| 62 | Reorder List | Linked List | https://www.youtube.com/watch?v=lBdS4AV1EGw | Amazon - 9 | Microsoft - 8 | Facebook - 3 | Google - 3 | Uber - 3 | Medium |
| 63 | Middle of the Linked-List | Linked List | https://www.youtube.com/watch?v=s7cHxJBuhjg | Apple - 4 | Amazon - 3 | Facebook - 2 | Google - 2 | Microsoft - 3 | Easy |
| 64 | Flatten Binary Tree to Linked List | Linked List | https://www.youtube.com/watch?v=3IrFrQ2JSfg | Amazon - 9 | Microsoft - 5 | Facebook - 3 | Apple - 2 | Google - 2 | Medium |
| 65 | Reverse Nodes in k-Group | Linked List | https://www.youtube.com/watch?v=P9_K8M4nnf0 | Microsoft - 15 | Amazon - 13 | Google - 03 | Apple - 03 | Facebook - 02 | Hard |
| 66 | Set Matrix Zeroes | Matrix | https://www.youtube.com/watch?v=JwQvyZcwcP4 | microsoft - 8 | Amazon - 5 | Bloomberg - 4 | Facebook - 4 | Apple - 2 | Medium |
| 67 | Spiral Matrix | Matrix | https://www.youtube.com/watch?v=xUpnTpzMqfI | Microsoft - 20 | Amazon - 10 | Apple - 8 | Facebook - 8 | Google - 7 | Medium |
| 68 | Rotate Image | Matrix | https://www.youtube.com/watch?v=dF1E3G9wBCw | Cisco - 18 | Apple - 11 | Facebook - 10 | Microsoft - 9 | Amazon - 9 | Medium |
| 69 | Longest Increasing Path in a Matrix | Matrix | https://www.youtube.com/watch?v=gvwTGXP-reQ | Google - 26 | Amazon - 6 | DoorDash - 5 | Facebook - 3 | Tik tok - 03 | Hard |
| 70 | Word Search | Matrix | https://www.youtube.com/watch?v=5VRCAx2DVas | Amazon - 38 | microsoft - 19 | Twitter - 17 | Uber - 16 | Facebook - 10 | Medium |
| 71 | Valid Sudoku | Matrix | https://www.youtube.com/watch?v=q2fl7lUkc8o | Amazon - 24 | Apple - 15 | Uber - 7 | Microsoft - 4 | Google - 2 | Medium |
| 72 | Game of Life | Matrix | https://www.youtube.com/watch?v=1FQNMDPZXRc | Amazon - 10 | Bloomberg - 5 | Google - 3 | Microsoft - 2 | DoorDash - 2 | Medium |
| 73 | LRU Cache | Design | https://www.youtube.com/watch?v=VPq5dlxaeP8 | Amazon - 102 | Microsoft - 36 | Facebook - 29 | Apple - 29 | Google - 11 | Medium |
| 74 | Insert Delete GetRandom O(1) | Design | https://www.youtube.com/watch?v=cRPoqZOlDkg | Bloomberg - 35 | Linked In - 17 | Facebook - 12 | Microsoft - 11 | Uber - 7 | Medium |
| 75 | Logger Rate Limiter | Design | https://www.youtube.com/watch?v=gYNSX9yVuhQ | Google - 48 | Microsoft - 5 | Amazon - 3 | Apple - 3 | Netflix - 3 | Easy |
| 76 | Design Tic-Tac-Toe | Design | https://www.youtube.com/watch?v=eaBYb0uSfBM | Amazon - 14 | Facebook - 6 | Microsoft - 5 | Apple - 2 | Google - 4 | Medium |
| 77 | Moving Average from Data Stream | Design | https://www.youtube.com/watch?v=WTuA4qNZky4 | Facebook - 23 | Spotify - 21 | Google - 4 | Apple - 3 | Amazon - 3 | Easy |
| 78 | Merge Sorted Array | Sorting | https://www.youtube.com/watch?v=05mXJB5SLA8 | Facebook - 44 | Microsoft - 13 | Amazon - 9 | Apple - 6 | LinkedIn - 4 | Easy |
| 79 | Largest Number | Sorting | https://www.youtube.com/watch?v=q6tyGuVVbfE | Amazon - 6 | Microsoft - 3 | Apple - 3 | Bloomberg - 2 | Facebook - 3 | Medium |
| 80 | Sort List | Sorting | https://www.youtube.com/watch?v=7halZ77R55o | Apple - 6 | Microsoft - 5 | Amazon - 2 | Facebook - 7 | Tik tok - 2 | Medium |
| 81 | Sort Colors | Sorting | https://www.youtube.com/watch?v=HO-qzdL_x8U | Amazon - 10 | Microsoft - 7 | Apple - 7 | Facebook - 3 | Google - 2 | Medium |
| 82 | Majority Element | Sorting | https://www.youtube.com/watch?v=UoTI6zBIBMo | Amazon - 9 | Google - 4 | Apple - 4 | Microsoft - 2 | Bloomberg - 2 | Easy |
| 83 | Longest Substring Without Repeating Characters | String | https://www.youtube.com/watch?v=RMQ-gRQAY0o | Amazon - 58 | microsoft - 30 | Bloomberg - 22 | Facebook - 20 | Google - 19 | Medium |
| 84 | Longest Repeating Character Replacement | String | https://www.youtube.com/watch?v=FYyWsqFjkZk | Google - 9 | Uber - 7 | Amazon - 5 | Adobe - 2 | Facebook - 4 | Medium |
| 85 | Fizz Buzz | String | https://www.youtube.com/watch?v=E3eO7jTFElU | Google - 5 | Amazon - 4 | Facebook - 3 | Apple - 2 | Tik tok - 6 | Easy |
| 86 | Longest Common Prefix | String | https://www.youtube.com/watch?v=PWoIZxcamsQ | Amazon - 20 | Facebook - 15 | Apple - 15 | Google - 10 | Microsoft - 7 | Easy |
| 87 | Minimum Window Substring | String | https://www.youtube.com/watch?v=tMx5JZSBWIE | Facebook - 18 | Amazon - 16 | Linked In - 9 | Lyft - 9 | Microsoft - 8 | Hard |
| 88 | Valid Anagram | String | https://www.youtube.com/watch?v=qyQni3rz-ko | Amazon - 13 | Bloomberg - 10 | Spotify - 9 | Facebook - 6 | Apple - 6 | Easy |
| 89 | Group Anagrams | String | https://www.youtube.com/watch?v=dEMcIpBOHpg | Amazon - 56 | Microsoft - 27 | Facebook - 17 | Apple - 14 | Google - 7 | Medium |
| 90 | Valid Parentheses | String | https://www.youtube.com/watch?v=D4l9TK0tWcI | Amazon - 52 | Linked In - 33 | Facebook - 23 | Microsoft - 21 | Bloomberg - 17 | Easy |
| 91 | Valid Palindrome | String | https://www.youtube.com/watch?v=MFPmKyThyHk | Facebook - 74 | Amazon - 10 | microsoft - 9 | Apple - 6 | Bloomberg - 4 | Easy |
| 92 | Longest Palindromic Substring | String | https://www.youtube.com/watch?v=92KOT17h8zw | Amazon - 40 | microsoft - 19 | Google - 15 | Adobe - 10 | Apple - 10 | Medium |
| 93 | Letter Combinations of a Phone Number | String | https://www.youtube.com/watch?v=dmYiOfy8a-k | Amazon - 38 | Microsoft - 27 | Facebook - 10 | Apple - 09 | Google - 08 | Medium |
| 94 | Palindromic Substrings | String | https://www.youtube.com/watch?v=WfkVe8egZbU | Facebook - 14 | Amazon - 4 | Google - 3 | Apple - 3 | Twitter - 2 | Medium |
| 95 | Encode and Decode Strings (Leetcode Premium) | String | https://www.youtube.com/watch?v=P5LQbpI4p_I | Facebook - 2 | Linked In - 2 | Square - 2 | Uber - 2 | Google - 7 | Medium |
| 96 | Palindrome Linked List | String | https://www.youtube.com/watch?v=uGGAJxeXa4U | Amazon - 16 | Facebook - 7 | Microsoft - 7 | Apple - 7 | Google - 5 | Easy |
| 97 | Text Justification | String | https://www.youtube.com/watch?v=Pf_1Ox9ud_w | Google - 23 | Linked In - 17 | Uber - 9 | Facebook - 4 | Microsoft - 3 | Hard |
| 98 | Min Stack | Stack | https://www.youtube.com/watch?v=To2iap-ac3g | Amazon - 17 | Microsoft - 11 | Bloomberg - 5 | Facebook - 3 | Apple - 2 | Medium |
| 99 | Largest Rectangle in Histogram | Stack | https://www.youtube.com/watch?v=IasMlShanvc | Amazon - 15 | Microsoft - 4 | Facebook - 3 | Bloomberg - 3 | Apple - 2 | Hard |
| 100 | Minimum Remove to Make Valid Parentheses | Stack | https://www.youtube.com/watch?v=h9skhJ_UZQo | Facebook - 142 | Amazon - 7 | Bloomberg - 5 | Google - 3 | Microsoft - 4 | Medium |
| 101 | Longest Valid Parentheses | Stack | https://www.youtube.com/watch?v=GrSL3c8G6k8 | Amazon - 11 | Microsoft - 4 | Google - 2 | Facebook - 2 | Apple - 2 | Hard |
| 102 | Max Stack | Stack | https://www.youtube.com/watch?v=SyDmmNQFW_I | Linked In - 34 | Bloomberg - 4 | Lyft - 3 | Amazon - 3 | Microsoft - 7 | Hard |
| 103 | Maximum Depth of Binary Tree | Tree | https://www.youtube.com/watch?v=yi7ym5R5aYI | Linked In - 8 | Amazon - 5 | Google - 5 | Spotify - 4 | Microsoft - 4 | Easy |
| 104 | Same Tree | Tree | https://www.youtube.com/watch?v=yi7ym5R5aYI | Linked In - 8 | Amazon - 4 | Google - 2 | Bloomberg - 2 | Apple - 2 | Easy |
| 105 | Symmetric Tree | Tree | https://www.youtube.com/watch?v=NeSeH2ECZUw | Amazon - 9 | Linked In - 5 | Google - 5 | Facebook - 4 | Apple - 3 | Easy |
| 106 | Invert/Flip Binary Tree | Tree | https://www.youtube.com/watch?v=yb2Y9h2YWio | Amazon - 5 | Facebook - 5 | Google - 3 | microsoft - 2 | Apple - 2 | Easy |
| 107 | Binary Tree Maximum Path Sum | Tree | https://www.youtube.com/watch?v=6wv9yMSenvQ | Amazon - 20 | DoorDash - 18 | Microsoft - 12 | Facebook - 9 | Google - 6 | Hard |
| 108 | Binary Tree Level Order Traversal | Tree | https://www.youtube.com/watch?v=tBJ1a5ljFCQ | Amazon - 11 | Linked in - 11 | Microsoft - 9 | Facebook - 5 | Google - 2 | Medium |
| 109 | Serialize and Deserialize Binary Tree | Tree | https://www.youtube.com/watch?v=vqbpTOU-LS4 | Amazon - 26 | Microsoft - 16 | Linked in - 15 | Uber - 6 | Google - 4 | Hard |
| 110 | Subtree of Another Tree | Tree | https://www.youtube.com/watch?v=YOW_-ptARNE | Amazon - 7 | Microsoft - 2 | Google - 2 | Facebook - 9 | Apple - 2 | Easy |
| 111 | Find Leaves of Binary Tree | Tree | https://www.youtube.com/watch?v=VZCWLZ5PvKM | Google - 52 | Linked In - 15 | Amazon - 8 | Microsoft - 4 | Facebook - 2 | Medium |
| 112 | | Tree | https://www.youtube.com/watch?v=YYl2Tp-Wqcw | Microsoft - 6 | Amazon - 3 | Bloomberg - 2 | Google - 2 | Apple - 2 | Medium |
| 113 | Validate Binary Search Tree | Tree | https://www.youtube.com/watch?v=QaCMLopSwWI | Amazon - 25 | Microsoft - 12 | Bloomberg - 12 | Facebook - 5 | Uber - 3 | Medium |
| 114 | Kth Smallest Element in a BST | Tree | https://www.youtube.com/watch?v=tAUB05a6ys4 | Uber - 17 | Amazon - 8 | Microsoft - 3 | Facebook - 2 | Apple - 2 | Medium |
| 115 | Lowest Common Ancestor of BST | Tree | https://www.youtube.com/watch?v=1HUmPsyFb9U | Linked in - 12 | Facebook - 5 | Amazon - 3 | Apple - 3 | Google - 2 | Medium |
| 116 | Binary Tree Zigzag Level Order Traversal | Tree | https://www.youtube.com/watch?v=Oy3g4SEKNw0 | Facebook - 8 | Bloomberg - 8 | Amazon - 3 | Microsoft - 2 | Apple - 2 | Medium |
| 117 | Implement Trie (Prefix Tree) | Tree | https://www.youtube.com/watch?v=nLTqtBLhPbQ | Amazon - 13 | Google - 8 | Twitter - 7 | Microsoft - 5 | Snapchat - 5 | Medium |
| 118 | Add and Search Word | Tree | https://www.youtube.com/watch?v=Z7Kr2b4d9fE | Amazon - 9 | Google - 5 | Microsoft - 4 | Apple - 2 | Facebook - 8 | Medium |
| 119 | Word Search II | Tree | https://www.youtube.com/watch?v=8K2Sh9ingJA | Amazon - 28 | Uber - 28 | Cisco - 12 | Microsoft - 9 | Google - 6 | Hard |
| 120 | High Five | Heap | https://www.youtube.com/watch?v=z4c5QzarJxI | Goldman Sachs - 17 | Amazon - 5 | | | | Easy |
| 121 | Top K Frequent Elements | Heap | https://www.youtube.com/watch?v=QubWUx59QCk | Facebook - 73 | Amazon - 30 | Microsoft - 8 | Google - 7 | Uber - 7 | Medium |
| 122 | Kth Largest Element in an Array | Heap | https://www.youtube.com/watch?v=kmUL7CAOSwc | Facebook - 64 | Amazon - 19 | LinkedIn - 14 | Microsoft - 9 | Google - 6 | Medium |
| 123 | Sliding Window Maximum | Heap | https://www.youtube.com/watch?v=GIYk1wit12k | Amazon - 34 | Google - 13 | Apple - 7 | Facebook - 5 | Microsoft - 4 | Hard |
| 124 | Find Median from Data Stream | Heap | https://www.youtube.com/watch?v=IKpM6Q8wTIY | Amazon - 26 | Microsoft - 14 | Facebook - 6 | Apple - 5 | Google - 4 | Hard |
| 125 | Employee Free Time | Heap | https://www.youtube.com/watch?v=99l7goR4y0U | Google - 10 | Uber - 4 | Apple - 3 | Microsoft - 2 | Amazon - 3 | Hard |
| 126 | Sum of Two Integers | Binary-Bit Manipulation | https://www.youtube.com/watch?v=oQqe3N2aSd4 | Adobe - 2 | Facebook - 3 | Amazon - 3 | TCS - 3 | Microsoft - 3 | Medium |
| 127 | Number of 1 Bits | Binary-Bit Manipulation | https://www.youtube.com/watch?v=xx9vN3n0_SA | Box - 11 | Amazon - 7 | Facebook - 5 | Qualcomm - 4 | Cisco - 4 | Easy |
| 128 | Counting Bits | Binary-Bit Manipulation | https://www.youtube.com/watch?v=f9vCuICgRpU | Bloomberg - 3 | Microsoft - 3 | Google - 2 | Amazon - 2 | Apple - 2 | Easy |
| 129 | Missing Number | Binary-Bit Manipulation | https://www.youtube.com/watch?v=-pLW7935dlc | Microsoft - 13 | Amazon - 12 | Apple - 4 | Adobe - 3 | Facebook - 3 | Easy |
| 130 | Reverse Bits | Binary-Bit Manipulation | https://www.youtube.com/watch?v=-7bpRBMPXh8 | Apple - 3 | Facebook - 3 | Microsoft - 2 | Qualcomm - 2 | Amazon - 3 | Easy |
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| NEETCODE 150 Solved | | | | | |
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| Num | LeetCode Problem | Topic | Video Explanation | Difficulty | | | | | |
| 1 | Contains Duplicate | Arrays & Hashing | https://www.youtube.com/watch?v=c_q_Pc2yg_0 | Easy | | | | | |
| 2 | Valid Anagram | Arrays & Hashing | https://www.youtube.com/watch?v=qyQni3rz-ko | Easy | | | | | |
| 3 | Two Sum | Arrays & Hashing | https://www.youtube.com/watch?v=NP9nLwKzXGA | Easy | | | | | |
| 4 | Group Anagrams | Arrays & Hashing | https://www.youtube.com/watch?v=dEMcIpBOHpg | Medium | | | | | |
| 5 | Top K Frequent Elements | Arrays & Hashing | https://www.youtube.com/watch?v=QubWUx59QCk | Medium | | | | | |
| 6 | Product of Array Except Self | Arrays & Hashing | https://www.youtube.com/watch?v=UxmLwxH-lhM | Medium | | | | | |
| 7 | Valid Sudoku | Arrays & Hashing | https://www.youtube.com/watch?v=q2fl7lUkc8o | Medium | | | | | |
| 8 | Encode and Decode Strings | Arrays & Hashing | https://www.youtube.com/watch?v=P5LQbpI4p_I | Medium | | | | | |
| 9 | Longest Consecutive Sequence | Arrays & Hashing | https://www.youtube.com/watch?v=sJBf-JdWGhM | Medium | | | | | |
| 10 | Valid Palindrome | Two Pointers | https://www.youtube.com/watch?v=MFPmKyThyHk | Easy | | | | | |
| 11 | Two Sum II Input Array Is Sorted | Two Pointers | https://www.youtube.com/watch?v=c9ywRRJcP1Y | Medium | | | | | |
| 12 | 3Sum | Two Pointers | https://www.youtube.com/watch?v=WtloSzFYvho | Medium | | | | | |
| 13 | Container With Most Water | Two Pointers | https://www.youtube.com/watch?v=wi8fqhNoV-Y | Medium | | | | | |
| 14 | Trapping Rain Water | Two Pointers | https://www.youtube.com/watch?v=AFl_VxaO_F0 | Hard | | | | | |
| 15 | Best Time to Buy And Sell Stock | Sliding Window | https://www.youtube.com/watch?v=CCQBvgPages | Easy | | | | | |
| 16 | Longest Substring Without Repeating Characters | Sliding Window | https://www.youtube.com/watch?v=RMQ-gRQAY0o | Medium | | | | | |
| 17 | Longest Repeating Character Replacement | Sliding Window | https://www.youtube.com/watch?v=FYyWsqFjkZk | Medium | | | | | |
| 18 | Permutation In String | Sliding Window | https://www.youtube.com/watch?v=mIorIJvhl8E | Medium | | | | | |
| 19 | Minimum Window Substring | Sliding Window | https://www.youtube.com/watch?v=tMx5JZSBWIE | Hard | | | | | |
| 20 | Sliding Window Maximum | Sliding Window | https://www.youtube.com/watch?v=GIYk1wit12k | Hard | | | | | |
| 21 | Valid Parentheses | Stack | https://www.youtube.com/watch?v=D4l9TK0tWcI | Easy | | | | | |
| 22 | Min Stack | Stack | https://www.youtube.com/watch?v=To2iap-ac3g | Medium | | | | | |
| 23 | Evaluate Reverse Polish Notation | Stack | https://www.youtube.com/watch?v=vDRZN5i4b8U | Medium | | | | | |
| 24 | Generate Parentheses | Stack | https://www.youtube.com/watch?v=VzMyeCMLdPI | Medium | | | | | |
| 25 | Daily Temperatures | Stack | https://www.youtube.com/watch?v=jmuo4BBfl3I | Medium | | | | | |
| 26 | Car Fleet | Stack | https://www.youtube.com/watch?v=TPSiTAFhszA | Medium | | | | | |
| 27 | Largest Rectangle In Histogram | Stack | https://www.youtube.com/watch?v=IasMlShanvc | Hard | | | | | |
| 28 | Binary Search | Binary Search | https://www.youtube.com/watch?v=t3yPHFyKxr4 | Easy | | | | | |
| 29 | Search a 2D Matrix | Binary Search | https://www.youtube.com/watch?v=dP4cb8zbohY | Medium | | | | | |
| 30 | Koko Eating Bananas | Binary Search | https://www.youtube.com/watch?v=3m3QZeiH3KI | Medium | | | | | |
| 31 | Find Minimum In Rotated Sorted Array | Binary Search | https://www.youtube.com/watch?v=Dr69TSfv9JI | Medium | | | | | |
| 32 | Search In Rotated Sorted Array | Binary Search | https://www.youtube.com/watch?v=sE_4DzVc71w | Medium | | | | | |
| 33 | Time Based Key Value Store | Binary Search | https://www.youtube.com/watch?v=u08L8DaDoOU | Medium | | | | | |
| 34 | Median of Two Sorted Arrays | Binary Search | https://www.youtube.com/watch?v=LRM4qiHLYCE | Hard | | | | | |
| 35 | Reverse Linked List | Linked List | https://www.youtube.com/watch?v=FHhItaCZ2pE | Easy | | | | | |
| 36 | Merge Two Sorted Lists | Linked List | https://www.youtube.com/watch?v=Bwymxn-n6XA | Easy | | | | | |
| 37 | Reorder List | Linked List | https://www.youtube.com/watch?v=lBdS4AV1EGw | Medium | | | | | |
| 38 | Remove Nth Node From End of List | Linked List | https://www.youtube.com/watch?v=hZtAW3cp8vQ | Medium | | | | | |
| 39 | Copy List With Random Pointer | Linked List | https://www.youtube.com/watch?v=vy7ZJ4TdyS8 | Medium | | | | | |
| 40 | Add Two Numbers | Linked List | https://www.youtube.com/watch?v=MYtp__JpTns | Medium | | | | | |
| 41 | Linked List Cycle | Linked List | https://www.youtube.com/watch?v=k-gTqlOBT1g | Easy | | | | | |
| 42 | Find The Duplicate Number | Linked List | https://www.youtube.com/watch?v=Lu3if4xOA1s | Medium | | | | | |
| 43 | LRU Cache | Linked List | https://www.youtube.com/watch?v=VPq5dlxaeP8 | Medium | | | | | |
| 44 | Merge K Sorted Lists | Linked List | https://www.youtube.com/watch?v=SlKgDtpJnxg | Hard | | | | | |
| 45 | Reverse Nodes In K Group | Linked List | https://www.youtube.com/watch?v=P9_K8M4nnf0 | Hard | | | | | |
| 46 | Invert Binary Tree | Trees | https://www.youtube.com/watch?v=yb2Y9h2YWio | Easy | | | | | |
| 47 | Maximum Depth of Binary Tree | Trees | https://www.youtube.com/watch?v=IAMk9ZSpvjQ | Easy | | | | | |
| 48 | Diameter of Binary Tree | Trees | https://www.youtube.com/watch?v=DpyCkHMlxLc | Easy | | | | | |
| 49 | Balanced Binary Tree | Trees | https://www.youtube.com/watch?v=gu5rAEvm9Fk | Easy | | | | | |
| 50 | Same Tree | Trees | https://www.youtube.com/watch?v=yi7ym5R5aYI | Easy | | | | | |
| 51 | Subtree of Another Tree | Trees | https://www.youtube.com/watch?v=YOW_-ptARNE | Easy | | | | | |
| 52 | Lowest Common Ancestor of a Binary Search Tree | Trees | https://www.youtube.com/watch?v=1HUmPsyFb9U | Medium | | | | | |
| 53 | Binary Tree Level Order Traversal | Trees | https://www.youtube.com/watch?v=Oy3g4SEKNw0 | Medium | | | | | |
| 54 | Binary Tree Right Side View | Trees | https://www.youtube.com/watch?v=4lMY-g0Afg8 | Medium | | | | | |
| 55 | Count Good Nodes In Binary Tree | Trees | https://www.youtube.com/watch?v=AiCPoU8q2sU | Medium | | | | | |
| 56 | Validate Binary Search Tree | Trees | https://www.youtube.com/watch?v=QaCMLopSwWI | Medium | | | | | |
| 57 | Kth Smallest Element In a Bst | Trees | https://www.youtube.com/watch?v=tAUB05a6ys4 | Medium | | | | | |
| 58 | Construct Binary Tree From Preorder And Inorder Traversal | Trees | https://www.youtube.com/watch?v=YYl2Tp-Wqcw | Medium | | | | | |
| 59 | Binary Tree Maximum Path Sum | Trees | https://www.youtube.com/watch?v=6wv9yMSenvQ | Hard | | | | | |
| 60 | Serialize And Deserialize Binary Tree | Trees | https://www.youtube.com/watch?v=vqbpTOU-LS4 | Hard | | | | | |
| 61 | Implement Trie Prefix Tree | Tries | https://www.youtube.com/watch?v=nLTqtBLhPbQ | Medium | | | | | |
| 62 | Design Add And Search Words Data Structure | Tries | https://www.youtube.com/watch?v=Z7Kr2b4d9fE | Medium | | | | | |
| 63 | Word Search II | Tries | https://www.youtube.com/watch?v=8K2Sh9ingJA | Hard | | | | | |
| 64 | Kth Largest Element In a Stream | Heap / Priority Queue | https://www.youtube.com/watch?v=i7Mt70QERw4 | Easy | | | | | |
| 65 | Last Stone Weight | Heap / Priority Queue | https://www.youtube.com/watch?v=xq4RoS0vVfM | Easy | | | | | |
| 66 | K Closest Points to Origin | Heap / Priority Queue | https://www.youtube.com/watch?v=RLyF_-4Izg0 | Medium | | | | | |
| 67 | Kth Largest Element In An Array | Heap / Priority Queue | https://www.youtube.com/watch?v=kmUL7CAOSwc | Medium | | | | | |
| 68 | Task Scheduler | Heap / Priority Queue | https://www.youtube.com/watch?v=IcjlqToRGWI | Medium | | | | | |
| 69 | Design Twitter | Heap / Priority Queue | https://www.youtube.com/watch?v=esZ4vvjwW6E | Medium | | | | | |
| 70 | Find Median From Data Stream | Heap / Priority Queue | https://www.youtube.com/watch?v=IKpM6Q8wTIY | Hard | | | | | |
| 71 | Subsets | Backtracking | https://www.youtube.com/watch?v=OQKWzRJYtwg | Medium | | | | | |
| 72 | Combination Sum | Backtracking | https://www.youtube.com/watch?v=dJBbuDK4ZRk | Medium | | | | | |
| 73 | Permutations | Backtracking | https://www.youtube.com/watch?v=_tgwDDWuU-Q | Medium | | | | | |
| 74 | Subsets II | Backtracking | https://www.youtube.com/watch?v=GPigeECXWZE | Medium | | | | | |
| 75 | Combination Sum II | Backtracking | https://www.youtube.com/watch?v=I6f8Za0vRxE | Medium | | | | | |
| 76 | Word Search | Backtracking | https://www.youtube.com/watch?v=8K2Sh9ingJA | Medium | | | | | |
| 77 | Palindrome Partitioning | Backtracking | https://www.youtube.com/watch?v=NWe3W2bMVAU | Medium | | | | | |
| 78 | Letter Combinations of a Phone Number | Backtracking | https://www.youtube.com/watch?v=dmYiOfy8a-k | Medium | | | | | |
| 79 | N Queens | Backtracking | https://www.youtube.com/watch?v=MOrMPEq6P5w | Hard | | | | | |
| 80 | Number of Islands | Graphs | https://www.youtube.com/watch?v=H-2Nh2RXX6g | Medium | | | | | |
| 81 | Clone Graph | Graphs | https://www.youtube.com/watch?v=1aN0WWM0-Eo | Medium | | | | | |
| 82 | Max Area of Island | Graphs | https://www.youtube.com/watch?v=Dy-M-Suk8nk | Medium | | | | | |
| 83 | Pacific Atlantic Water Flow | Graphs | https://www.youtube.com/watch?v=fTohawuMcvY | Medium | | | | | |
| 84 | Surrounded Regions | Graphs | https://www.youtube.com/watch?v=yaBaE4fo6wA | Medium | | | | | |
| 85 | Rotting Oranges | Graphs | https://www.youtube.com/watch?v=1BlwbFfgk-E | Medium | | | | | |
| 86 | Walls And Gates | Graphs | https://www.youtube.com/watch?v=wYv60DTtsto | Medium | | | | | |
| 87 | Course Schedule | Graphs | https://www.youtube.com/watch?v=ge9WKEsVue0 | Medium | | | | | |
| 88 | Course Schedule II | Graphs | https://www.youtube.com/watch?v=_RWV4hZdmdk | Medium | | | | | |
| 89 | Redundant Connection | Graphs | https://www.youtube.com/watch?v=ctMC5TPuVnM | Medium | | | | | |
| 90 | Number of Connected Components In An Undirected Graph | Graphs | https://www.youtube.com/watch?v=o8z2tHYrg_o | Medium | | | | | |
| 91 | Graph Valid Tree | Graphs | https://www.youtube.com/watch?v=WU3-vo0MJW0 | Medium | | | | | |
| 92 | Word Ladder | Graphs | https://www.youtube.com/watch?v=isLTjdCw52s | Hard | | | | | |
| 93 | Reconstruct Itinerary | Advanced Graphs | https://www.youtube.com/watch?v=1_bfI1mi6mA | Hard | | | | | |
| 94 | Min Cost to Connect All Points | Advanced Graphs | https://www.youtube.com/watch?v=mvwrT2A4p60 | Medium | | | | | |
| 95 | Network Delay Time | Advanced Graphs | https://www.youtube.com/watch?v=QKRRjz4KMuE | Medium | | | | | |
| 96 | Swim In Rising Water | Advanced Graphs | https://www.youtube.com/watch?v=WYHvHkh9kHQ | Hard | | | | | |
| 97 | Alien Dictionary | Advanced Graphs | https://www.youtube.com/watch?v=1QbsN5JyPto | Hard | | | | | |
| 98 | Cheapest Flights Within K Stops | Advanced Graphs | https://www.youtube.com/watch?v=AVsymWOY6fc | Medium | | | | | |
| 99 | Climbing Stairs | 1-D Dynamic Programming | https://www.youtube.com/watch?v=5mWBnYrdO70 | Easy | | | | | |
| 100 | Min Cost Climbing Stairs | 1-D Dynamic Programming | https://www.youtube.com/watch?v=A3LYMRqAQeU | Easy | | | | | |
| 101 | House Robber | 1-D Dynamic Programming | https://www.youtube.com/watch?v=jFmfYi_dvwQ | Medium | | | | | |
| 102 | House Robber II | 1-D Dynamic Programming | https://www.youtube.com/watch?v=c_rwra1aITY | Medium | | | | | |
| 103 | Longest Palindromic Substring | 1-D Dynamic Programming | https://www.youtube.com/watch?v=92KOT17h8zw | Medium | | | | | |
| 104 | Palindromic Substrings | 1-D Dynamic Programming | https://www.youtube.com/watch?v=WfkVe8egZbU | Medium | | | | | |
| 105 | Decode Ways | 1-D Dynamic Programming | https://www.youtube.com/watch?v=ayGRvdnjFKg | Medium | | | | | |
| 106 | Coin Change | 1-D Dynamic Programming | https://www.youtube.com/watch?v=UOmlkfWMU6M | Medium | | | | | |
| 107 | Maximum Product Subarray | 1-D Dynamic Programming | https://www.youtube.com/watch?v=OuRQ_TCCjsU | Medium | | | | | |
| 108 | Word Break | 1-D Dynamic Programming | https://www.youtube.com/watch?v=XD9tXO9HW40 | Medium | | | | | |
| 109 | Longest Increasing Subsequence | 1-D Dynamic Programming | https://www.youtube.com/watch?v=cixz99yxgWA | Medium | | | | | |
| 110 | Partition Equal Subset Sum | 1-D Dynamic Programming | https://www.youtube.com/watch?v=X50Rknzenus | Medium | | | | | |
| 111 | Unique Paths | 2-D Dynamic Programming | https://www.youtube.com/watch?v=klWLMgdMWCY | Medium | | | | | |
| 112 | Longest Common Subsequence | 2-D Dynamic Programming | https://www.youtube.com/watch?v=g9iNrsBR9BE | Medium | | | | | |
| 113 | Best Time to Buy And Sell Stock With Cooldown | 2-D Dynamic Programming | https://www.youtube.com/watch?v=PH5jUN1cNHo | Medium | | | | | |
| 114 | Coin Change II | 2-D Dynamic Programming | https://www.youtube.com/watch?v=khIBdTrRggk | Medium | | | | | |
| 115 | Target Sum | 2-D Dynamic Programming | https://www.youtube.com/watch?v=9QqOX57nMAY | Medium | | | | | |
| 116 | Interleaving String | 2-D Dynamic Programming | https://www.youtube.com/watch?v=KXIK863L9tk | Medium | | | | | |
| 117 | Longest Increasing Path In a Matrix | 2-D Dynamic Programming | https://www.youtube.com/watch?v=gvwTGXP-reQ | Hard | | | | | |
| 118 | Distinct Subsequences | 2-D Dynamic Programming | https://www.youtube.com/watch?v=A5IBp1ldlik | Hard | | | | | |
| 119 | Edit Distance | 2-D Dynamic Programming | https://www.youtube.com/watch?v=fnWskW9xaw4 | Medium | | | | | |
| 120 | Burst Balloons | 2-D Dynamic Programming | https://www.youtube.com/watch?v=TfvN6rqDOT0 | Hard | | | | | |
| 121 | Regular Expression Matching | 2-D Dynamic Programming | https://www.youtube.com/watch?v=VFQddcCP46c | Hard | | | | | |
| 122 | Maximum Subarray | Greedy | https://www.youtube.com/watch?v=nr2djEYM7_A | Medium | | | | | |
| 123 | Jump Game | Greedy | https://www.youtube.com/watch?v=PVNLmjJaHW0 | Medium | | | | | |
| 124 | Jump Game II | Greedy | https://www.youtube.com/watch?v=d_1GRnMg_zs | Medium | | | | | |
| 125 | Gas Station | Greedy | https://www.youtube.com/watch?v=ENDr9IfRMMw | Medium | | | | | |
| 126 | Hand of Straights | Greedy | https://www.youtube.com/watch?v=ISHUyNJVq_M | Medium | | | | | |
| 127 | Merge Triplets to Form Target Triplet | Greedy | https://www.youtube.com/watch?v=OVjB6kGr29g | Medium | | | | | |
| 128 | Partition Labels | Greedy | https://www.youtube.com/watch?v=TvWEYhHPO0w | Medium | | | | | |
| 129 | Valid Parenthesis String | Greedy | https://www.youtube.com/watch?v=h5YxPLC4lWs | Medium | | | | | |
| 130 | Insert Interval | Intervals | https://www.youtube.com/watch?v=16YiKk6ga7Y | Medium | | | | | |
| 131 | Merge Intervals | Intervals | https://www.youtube.com/watch?v=n3F2v9f8OfY | Medium | | | | | |
| 132 | Non Overlapping Intervals | Intervals | https://www.youtube.com/watch?v=y8nBFmPsAF8 | Medium | | | | | |
| 133 | Meeting Rooms | Intervals | https://www.youtube.com/watch?v=5nqLIwo0oC0 | Easy | | | | | |
| 134 | Meeting Rooms II | Intervals | https://www.youtube.com/watch?v=sQkgNfoPrDw | Medium | | | | | |
| 135 | Minimum Interval to Include Each Query | Intervals | https://www.youtube.com/watch?v=FZtDTYzVUhU | Hard | | | | | |
| 136 | Rotate Image | Math & Geometry | https://www.youtube.com/watch?v=dF1E3G9wBCw | Medium | | | | | |
| 137 | Spiral Matrix | Math & Geometry | https://www.youtube.com/watch?v=xUpnTpzMqfI | Medium | | | | | |
| 138 | Set Matrix Zeroes | Math & Geometry | https://www.youtube.com/watch?v=JwQvyZcwcP4 | Medium | | | | | |
| 139 | Happy Number | Math & Geometry | https://www.youtube.com/watch?v=d5SvCvRmmww | Easy | | | | | |
| 140 | Plus One | Math & Geometry | https://www.youtube.com/watch?v=1KIcZqCXNHU | Easy | | | | | |
| 141 | Pow(x, n) | Math & Geometry | https://www.youtube.com/watch?v=OUKFuUkb4p0 | Medium | | | | | |
| 142 | Multiply Strings | Math & Geometry | https://www.youtube.com/watch?v=1Hftrgb30BQ | Medium | | | | | |
| 143 | Detect Squares | Math & Geometry | https://www.youtube.com/watch?v=1UooPSAHjfw | Medium | | | | | |
| 144 | Single Number | Bit Manipulation | https://www.youtube.com/watch?v=2LaOz13Y5qw | Easy | | | | | |
| 145 | Number of 1 Bits | Bit Manipulation | https://www.youtube.com/watch?v=xx9vN3n0_SA | Easy | | | | | |
| 146 | Counting Bits | Bit Manipulation | https://www.youtube.com/watch?v=f9vCuICgRpU | Easy | | | | | |
| 147 | Reverse Bits | Bit Manipulation | https://www.youtube.com/watch?v=-7bpRBMPXh8 | Easy | | | | | |
| 148 | Missing Number | Bit Manipulation | https://www.youtube.com/watch?v=-pLW7935dlc | Easy | | | | | |
| 149 | Sum of Two Integers | Bit Manipulation | https://www.youtube.com/watch?v=oQqe3N2aSd4 | Medium | | | | | |
| 150 | Reverse Integer | Bit Manipulation | https://www.youtube.com/watch?v=fZwClQfC3qU | Medium | | | | | |
| | | | | | | | | |
Full Courses on Most important topics and questions | | | | | | | | | |
| | | | | | | | | |
| Num | Type | Full Course | | | | | |
| | | | | | | | | |
| 1 | Complete Guide for Data Structures | https://www.youtube.com/watch?v=2h433OItQiA | | | | | | |
| 2 | Understanding Big o and Time Complexity | https://www.youtube.com/watch?v=7P0qxxEy2-w | | | | | | |
| 3 | Using Data Structures in System Design | https://www.youtube.com/watch?v=r9ybzRjyglw | | | | | | |
| 4 | Full Course on DSA coding Patterns | | | | | | | | |
| 5 | 10 Golden Rules for Any Coding Interview | https://www.youtube.com/watch?v=PKXD2M2kaXQ | | | | | | |
| 6 | Arrays for Technical Interviews - Full Course | | | | | | | | |
| 7 | Dynamic Programming for Technical Interviews - Full Course | | | | | | | | |
| 8 | Graph Algorithms for Technical Interviews - Full Course | | | | | | | | |
| 9 | Intervals for Technical Interviews - Full Course | https://www.youtube.com/watch?v=GOCfvrFsIOk | | | | | | |
| 10 | Hashing Algorithms for Technical Interviews - Full Course | https://www.youtube.com/watch?v=irua6hf3kBM | | | | | | |
| 11 | Linked Lists for Technical Interviews - Full Course | https://www.youtube.com/watch?v=Laugw5Uj57g | | | | | | |
| 12 | Strings for Technical Interviews - Full Course | https://www.youtube.com/watch?v=5xDT3AG7988 | | | | | | |
| 13 | Binary For Technical Interviews - Full Course | https://www.youtube.com/watch?v=CzAZzRcd8Oc | | | | | | |
| 14 | Tree Algorithm for Technical Interviews - Full Course | https://www.youtube.com/watch?v=1R2aM_BaiMg | | | | | | |
| 15 | Master the TWO Pointer Coding Pattern | https://www.youtube.com/watch?v=Fue0SgYBxrc | | | | | | |
| 16 | Sliding Window Coding Pattern | https://www.youtube.com/watch?v=CHVSDFeC-L4 | | | | | | |
| 17 | Intervals Coding Pattern | https://www.youtube.com/watch?v=HNSHVtSGMFk | | | | | | |
| 18 | Master BFS - Breadth First Search | https://www.youtube.com/watch?v=A1UG1Fc-TVc | | | | | | |
| 19 | MAster DFS - Depth First Search | https://www.youtube.com/watch?v=6gNAe0Fug8I | | | | | | |
| 20 | Entire Blind 75 Solved | https://www.youtube.com/watch?v=PieZjz2Pyhw | | | | | | |
| 21 | Entire Blind 75 Solved - Part 2 | https://www.youtube.com/watch?v=ERL4FPOsY3Y | | | | | | |
| 22 | 10 Must do things before interview | https://www.youtube.com/watch?v=FfeEUfh5zUE | | | | | | |
| 23 | Using Algorithms in System Design | https://www.youtube.com/watch?v=JZOT8qCUZYc | | | | | | |
| | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| Technical Interviews I have Experienced So Far | | | | | |
| | | | | | | | | |
| Num | Company | Interview Type | Interview Experience | Result | | | | | |
| | | | | | | | | |
| 1 | Microsoft - Incredible Story - How I got the Interview | Journey | | Hired | | | | | |
| 2 | Microsoft - Interview Experience | 5 Rounds | | Hired | | | | | |
| 3 | Amazon | First Round - Phone Screen | https://www.youtube.com/watch?v=Z9qEolBKo9Y | Selected | | | | | |
| 4 | Nokia | 1 Round - Onsite | | Hired | | | | | |
| 5 | RBC | 3 Rounds | | Hired | | | | | |
| 6 | Airbus | 3 Rounds | | Hired | | | | | |
| 7 | Goldman Sachs | First Round - Coder Pad | | Rejected | | | | | |
| 8 | DoorDash | First Round - Phone Screen | | Rejected | | | | | |
| 9 | Morgan stanley (2 Interviews ) | 4 Rounds - Onsite | | Rejected | | | | | |
| 10 | TD | 5 rounds (2 interviews) | | Rejected | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| Coding solution of all the problems I have solved | | | | | |
| | | | | | | | | |
| https://github.com/DestinationFAANG/Destination-FAANG-Java-Solution | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | |
| Tech Talks with Different IT folks | | | | | |
| | | | | | | | | |
| Num | Topic | Person Name | Full Interview | | | | | |
| 1 | Advice for software developers by a Pro Coder | Apurva Patel | https://youtu.be/nGehKzdZxe4 | | | | | | |
| 2 | Talk with an Amazon Technical Program Manager | Pratiksha Bakrola | https://youtu.be/qNOOgOxPLBQ | | | | | | |
| 3 | Fight the Layoffs with a Steller Preparation | Parth Vyas | https://youtu.be/UiKuKIbwpms | | | | | | |
| 4 | Raw Conversation with an Infosys Team lead | Manan Shah | https://youtu.be/inWxjvngXs8 | | | | | | |
| 5 | ChatGPT Explained + ChatGPT vs Google | Parth Vyas | https://youtu.be/UeMUwH6sszQ | | | | | | |