LeetCode in Java Algorithms Coding Interview Questions

Files Included :

1 Introduction.mp4 (2.65 MB)
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1 Delete Node in a Linked List (LeetCode 237) [Asked by Amazon,Microsoft].mp4 (15.15 MB)
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10 Flatten Binary Tree to Linked List (LeetCode 114) [Asked by Facebook].mp4 (46.85 MB)
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10 1 FlattenBinaryTreeToLinkedList.zip (300 B)
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11 Linked List Cycle ii (LeetCode 142) [Asked by Microsoft].mp4 (65.46 MB)
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11 1 Solution.zip (352 B)
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12 Linked List Cycle (LeetCode 141) [Asked by Amazon].mp4 (18.21 MB)
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12 1 leetcode-141-linked-list-cycle.zip (383 B)
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13 Intersection of Two Linked List (LeetCode 160).mp4 (29.95 MB)
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13 1 IntersectionOfTwoLinkedLists.zip (646 B)
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14 Copy List with Random Pointer (LeetCode 138) [Asked by Google].mp4 (30.91 MB)
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14 1 CopyListWithRandomPointer.zip (531 B)
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15 LRU Cache (LeetCode 146) [Asked by GoogleFacebook].mp4 (60.11 MB)
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15 1 LRUCache.zip (10.59 KB)
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2 Merge Two Sorted Lists (LeetCode 21) [Asked by Microsoft].mp4 (54.55 MB)
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2 1 leetcde-21-merge-two-sorted-list-recursive-iterative.zip (810 B)
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3 Reverse Linked List 4 Ways (LeetCode 206) [Asked by Google, Facebook].mp4 (81.15 MB)
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3 1 leetcode-206-reverse-linked-list-iterative-recursive-solution.zip (771 B)
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4 Reverse Nodes in k-group (LeetCode 25) [Asked by Microsoft].mp4 (50.4 MB)
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4 1 ReverseNodesInKGroup.zip (445 B)
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5 Remove Duplicates from Sorted List O(N) (LeetCode 83) [Asked by Microsoft].mp4 (40.02 MB)
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6 Remove Duplicates from Sorted List O(1) (LeetCode 83) [Asked by Microsoft].mp4 (74.04 MB)
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7 Rotate List (LeetCode 61) [Asked by Microsoft].mp4 (62.58 MB)
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8 Reorder List (LeetCode 143) [Asked by Amazon,LinkedIn,Microsoft].mp4 (93.35 MB)
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9 Palindrome Linked List (LeetCode 234) [Asked by Microsoft].mp4 (84.47 MB)
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1 Tree Traversal Techniques in Details (Preorder, Inorder, Postorder).mp4 (47.2 MB)
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10 Range Sum of BST (LeetCode 938).mp4 (16.71 MB)
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10 1 RangeSumOfBST.zip (10.35 KB)
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11 Same Tree (LeetCode 100) [Asked by Amazon,Microsoft].mp4 (169.57 MB)
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12 FlipInvert Binary Tree (LeetCode 226).mp4 (25.63 MB)
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12 1 InvertBinaryTree.zip (297 B)
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13 Minimum Depth of Binary Tree (LeetCode 111).mp4 (31.3 MB)
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13 1 MinimumDepthOfBinaryTree.zip (365 B)
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14 Maximum Depth of Binary Tree (LeetCode 104).mp4 (24.63 MB)
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14 1 MaximumDepthBinaryTree.zip (409 B)
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15 Balanced Binary Tree (LeetCode 110).mp4 (44.19 MB)
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15 1 BalancedBinaryTree.zip (364 B)
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16 Insert into a Binary Search Tree (LeetCode 701).mp4 (23.64 MB)
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16 1 InsertIntoBinarySearchTree.zip (333 B)
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17 Serialize and deserialize binary tree (LeetCode 297).mp4 (46.71 MB)
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17 1 leetcode-297-serialize-and-deserialize-binary-tree.zip (688 B)
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18 Binary Tree Maximum Path Sum (LeetCode 124).mp4 (37.24 MB)
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18 1 BinaryTreeMaximumPathSum.zip (371 B)
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19 Validate Binary Search Tree (LeetCode 98).mp4 (102.73 MB)
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19 1 ValidateBinarySearchTree.zip (371 B)
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2 Binary Tree Preorder Traversal Recursive + Iterative Solution (LeetCode 144).mp4 (98.92 MB)
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2 1 BinaryTreePreorderTraversalIterative.zip (388 B)
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2 2 BinaryTreePreorderTraversalRecursive.zip (344 B)
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20 Robber House III (LeetCode 337).mp4 (45.29 MB)
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20 1 HouseRobberIII.zip (393 B)
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21 Lowest Common Ancestor of Binary Tree (LeetCode 236).mp4 (78.21 MB)
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21 1 LowestCommonAncestorOfABinaryTree.zip (522 B)
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22 Binary Tree Cameras (LeetCode 968) [Asked by Uber].mp4 (332.47 MB)
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3 Binary Tree Inorder Traversal Recursive + Iterative Solution (LeetCode 94).mp4 (103.91 MB)
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3 1 BinaryTreeInorderTraversalIterative.zip (388 B)
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3 2 BinaryTreeInorderTraversalRecursive.zip (358 B)
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4 Binary Tree Post Order Traversal Recursive + Iterative (LeetCode 145).mp4 (112.24 MB)
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4 1 BinaryTreePostOrderTraversalIterative.zip (400 B)
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4 2 BinaryTreePostOrderTraversalRecursive.zip (351 B)
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5 Level Order Traversal Binary Tree Recursive + Iterative (LeetCode 102).mp4 (68.4 MB)
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5 1 LevelOrderTraversalIterativeAlgorithm.zip (552 B)
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5 2 LevelOrderTraversalRecursiveAlgorithm.zip (510 B)
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6 Binary Tree Zigzag Level Order Traversal Recursive + Iterative(LeetCode 103).mp4 (115.07 MB)
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6 1 ZigzagLevelOrderTraversalIterativeSolution.zip (494 B)
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6 2 ZigzagLevelOrderTraversalRecursiveSolution.zip (440 B)
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7 Convert Sorted Array to Binary Search Tree (LeetCode 108).mp4 (45.95 MB)
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7 1 ConvertSortedArrayToBST.zip (397 B)
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8 Construct Binary Search Tree from Preorder Traversal (LeetCode 1008).mp4 (53.3 MB)
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8 1 ConstructBSTFromPreorderTraversal.zip (438 B)
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9 Diameter of Binary Tree (LeetCode 543).mp4 (72.51 MB)
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9 1 DiameterBinaryTree.zip (346 B)
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1 Kth Largest Element in an Array (LeetCode 215) [Asked by Microsoft, Amazon].mp4 (262.71 MB)
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2 Find Median in a Data Stream.mp4 (430.45 MB)
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3 Implement Trie (LeetCode 208) HashMap [Asked by Amazon, Microsoft].mp4 (204.62 MB)
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4 Implement Trie (LeetCode 208) Array [Asked by Amazon, Microsoft].mp4 (74.34 MB)
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4 1 ImplementTrie.zip (648 B)
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5 Prefix and Suffix Search (LeetCode 745) [Asked by Google].mp4 (461.6 MB)
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1 String Permutation - (Non Duplicates) [Asked by Google].mp4 (87.96 MB)
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1 1 Solution.zip (878 B)
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10 [OLD]Letter Combinations of a Phone Number (LeetCode 17) [Asked by Google].mp4 (60.53 MB)
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10 1 Letter Combination of Phone Number.mp4 (20.77 MB)
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11 Restore IP Addresses (LeetCode 93) [Asked by FacebookApple].mp4 (133.44 MB)
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11 1 Solution.zip (1017 B)
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12 Splitting a String Into Descending Consecutive Values (1849) [Asked by Google].mp4 (71.58 MB)
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12 1 Solution.zip (890 B)
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13 Max Len of a Concatenated Str with Unique Char (LeetCode 1239) [Asked by Google].mp4 (88.04 MB)
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13 1 Solution.zip (919 B)
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14 Partition to K Equal Sum Subsets (LeetCode 698) [Asked by Microsoft].mp4 (132.89 MB)
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14 1 Solution.zip (10.98 KB)
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15 Rat in a Maze [Asked by AmazonMicrosoft].mp4 (136.49 MB)
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15 1 Solution.zip (975 B)
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16 M-Coloring [Asked by Amazon].mp4 (121.01 MB)
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16 1 Solution.zip (931 B)
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2 String Permutation - (Duplicates) [Asked by Google].mp4 (74.22 MB)
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2 1 Solution.zip (913 B)
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3 Permutations -- Array (LeetCode 46) [Asked by Google].mp4 (77.86 MB)
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3 1 Solution.zip (866 B)
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4 Combinations (LeetCode 77) [Asked by GoogleFacebookAmazon].mp4 (53.59 MB)
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4 1 Solution.zip (836 B)
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5 Combination Sum (LeetCode 39) [Asked by Google].mp4 (96.17 MB)
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5 1 Solution.zip (874 B)
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6 [OLD] Combination Sum iii (LeetCode 216) [Asked by Microsoft].mp4 (39.45 MB)
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6 1 CombinationSumIII.zip (581 B)
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7 Generate Parentheses (LeetCode 22) [Asked Facebook,Microsoft].mp4 (78.86 MB)
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7 1 Solution.zip (870 B)
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8 [OLD] Generate Parentheses (LeetCode 22) [Asked FacebookMicrosoft].mp4 (42.22 MB)
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8 1 leetcode-22-generate-parentheses.zip (454 B)
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9 Letter Combinations of a Phone Number (LeetCode 17) [Asked by Google].mp4 (137.36 MB)
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9 1 Solution.zip (927 B)
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1 BFS & DFS Traversal of Graph [Asked by Samsung].mp4 (38.75 MB)
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1 1 BFSonMatrix.zip (1.17 KB)
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1 2 DFSonMatrix.zip (987 B)
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2 Number of Islands [Asked by Microsoft, Apple] (LeetCode 200).mp4 (122.35 MB)
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2 1 Solution.zip (960 B)
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3 01 - Matrix (LeetCode 542) [Asked by Google].mp4 (85.62 MB)
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3 1 Solution.zip (1.12 KB)
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4 Clone a Graph [Asked by Facebook] (LeetCode 133).mp4 (137.6 MB)
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4 1 BFS.zip (1.11 KB)
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5 Barpartite Graph [Asked by Facebook, Microsoft] (LeetCode 785).mp4 (103.18 MB)
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5 1 BFS.zip (1.02 KB)
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6 Topological Sort -- Kahn's Algorithm -- (Asked by Amazon,Microsoft).mp4 (100.41 MB)
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6 1 Solution.zip (1.05 KB)
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1 Triangle (LeetCode 120) [Asked by Facebook].mp4 (41.54 MB)
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1 1 BestTimeToBuyAndSellStockIV.zip (486 B)
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10 Climbing Stairs (LeetCode 70).mp4 (41.92 MB)
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10 1 ClimbingStairsDP.zip (333 B)
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11 Minimum Path Sum (LeetCode 64).mp4 (34.55 MB)
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11 1 Solution.zip (433 B)
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12 Longset Increasing Subsequence(LeetCode 300).mp4 (82.92 MB)
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12 1 LongestIncreasingSubsequence.zip (387 B)
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13 Longest Common Subsequence (LeetCode 1143).mp4 (74.87 MB)
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13 1 LongestCommonSubsequence.zip (449 B)
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14 Edit Distance (LeetCode 72).mp4 (144.76 MB)
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14 1 EditDistance.zip (479 B)
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15 Regular Expression Matching (LeetCode 10).mp4 (111.14 MB)
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15 1 leetcode-10-regular-expression-matching.zip (669 B)
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2 Pascal's Triangle (LeetCode 118) [Asked by AmazonUber].mp4 (47.22 MB)
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2 1 leetcode-118-pascals-triangle.zip (451 B)
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3 Pascal's Triangle II (LeetCode 119) [Asked by Google].mp4 (31.73 MB)
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3 1 leetcode-119-pascals-triangle-ii.zip (385 B)
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4 Word Break (LeetCode 139) [Asked by Microsoft].mp4 (45.41 MB)
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4 1 WordBreak.zip (647 B)
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5 Maximum Product Subarray (LeetCode 152) [Asked by Amazon].mp4 (32.31 MB)
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5 1 MaximumProductSubarray.zip (412 B)
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6 House Robber (LeetCode 198).mp4 (41.4 MB)
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6 1 Solution.zip (411 B)
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7 House Robber II (LeetCode 213).mp4 (82.35 MB)
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7 1 HouseRobberII-BruteForce.zip (405 B)
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7 2 HouseRobberII-OptimalApproach.zip (394 B)
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8 Fibonacci Number 3 Solutions (LeetCode 509).mp4 (100.79 MB)
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8 1 BottomUpDP.zip (327 B)
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8 2 BottomUpDPOptimized.zip (340 B)
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8 3 TopDownDP.zip (359 B)
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8 4 TopDownNaiveSolution.zip (287 B)
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9 Climbing Stair using Fibonacci Sequence.mp4 (23.35 MB)
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9 1 ClimbingStairs.zip (310 B)
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1 Find the Difference (LeetCode 389).mp4 (15.39 MB)
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1 1 FindTheDifference.zip (304 B)
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2 Reverse Bits (LeetCode 190).mp4 (20.12 MB)
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2 1 ReverseBits.zip (324 B)
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3 Hamming Distance (LeetCode 461).mp4 (28.13 MB)
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3 1 HammingDistance.zip (352 B)
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4 Complement of Base 10 Integer (LeetCode 1009).mp4 (29.9 MB)
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4 1 ComplementOfBae10Integer.zip (290 B)
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5 Counting Bits (LeetCode 338).mp4 (68.24 MB)
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5 1 CountingBits.zip (351 B)
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6 Power Set (Asked by Snapdeal).mp4 (78.14 MB)
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7 Sum of Two Integers (LeetCode 371).mp4 (45.03 MB)
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7 1 SumOfTwoIntegers.zip (287 B)
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8 Divide Two Integers (LeetCode 29).mp4 (96 MB)
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8 1 DivideTwoIntegers.zip (902 B)
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1 FizzBuzz (LeetCode 412) [Asked by LinkedIn].mp4 (20.7 MB)
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1 1 FizzBuzz.zip (353 B)
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2 Single Number (LeetCode 136) [Asked by Amazon].mp4 (30.86 MB)
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3 Reverse Integer (LeetCode 7) [Asked by Facebook].mp4 (69.32 MB)
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4 Palindrome Number (LeetCode 9) [Asked by FacebookBloomberg].mp4 (40.77 MB)
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4 1 PalindromeNumber.zip (339 B)
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5 Factorial Trailing Zeroes (LeetCode 172) [Asked by Microsoft].mp4 (50.55 MB)
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5 1 FactorialTrailingZeroes.zip (964 B)
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6 Pow(x, n) (LeetCode 50) [Asked by FacebookAmazonLinkedIn].mp4 (43.5 MB)
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6 1 PowX^N.zip (456 B)
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7 Nth Root of a Number (Not on LeetCode) [Asked by Directi].mp4 (418.34 MB)
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1 Reverse String (LeetCode 344) [Asked by MicroSoftUber].mp4 (16.34 MB)
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1 1 ReverseString.zip (317 B)
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10 Reverse Words in a String (LeetCode 151) [Asked by FacebookAmazon].mp4 (100.93 MB)
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11 Valid Anagram (LeetCode 242) [Asked by Facebook].mp4 (80.61 MB)
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11 1 ValidAnagramHashMap.zip (488 B)
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11 2 ValidAnagramOptimized1.zip (369 B)
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11 3 ValidAnagramOptimized2.zip (364 B)
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12 Integer to English Words (LeetCode 273) [Facebook, Microsoft].mp4 (131.14 MB)
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12 1 IntegerToEnglishWords.zip (592 B)
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2 Longest Common Prefix (LeetCode 14) [Asked by Facebook].mp4 (36.67 MB)
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2 1 Solution.zip (372 B)
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3 Repeated DNA Sequences (LeetCode 187) [Asked by Google].mp4 (44.19 MB)
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3 1 RepeatedDNASequences(HashMap).zip (437 B)
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3 2 RepeatedDNASequences(SET).zip (384 B)
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4 Longest Substring without Repeating Characters (LeetCode 3) [Asked by Google].mp4 (48.35 MB)
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4 1 LongestSubstringWithoutRepeatingCharacters.zip (439 B)
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5 Valid Parentheses (LeetCode 20) [Facebook].mp4 (47.57 MB)
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5 1 leetcode-20-valid-parentheses.zip (513 B)
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6 Longest Palindromic Substring (LeetCode 5) [Asked by Facebook].mp4 (47.92 MB)
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6 1 leetcode-5-longest-palindromic-substring (2).zip (577 B)
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7 Decode String (LeetCode 394) [Asked by Google].mp4 (54.74 MB)
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7 1 DecodeString.zip (537 B)
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8 Group Anagrams (LeetCode 49) [Asked by Facebook].mp4 (20.45 MB)
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8 1 GroupAnagrams.zip (422 B)
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9 Longest Valid Parentheses (LeetCode 32) [Asked by Google].mp4 (27.91 MB)
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1 Binary Search (LeetCode 704) [Asked by Infosys,Oracle].mp4 (35.18 MB)
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1 1 BinarySearch.zip (351 B)
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2 Search in Rotated Sorted Array (LeetCode 33) [Asked by Facebook].mp4 (42.81 MB)
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2 1 SearchInRotatedSortedArray.zip (466 B)
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3 Find Minimum in Rotated Sorted Array (LeetCode 153) [Asked by Facebook].mp4 (43.09 MB)
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3 1 MedianOfTwoSortedArrays.zip (638 B)
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4 Longest Increasing Subsequence--Binary Search (LeetCode 300) [Asked by Facebook].mp4 (575.42 MB)
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4 1 LCS-BinarySearch.zip (998 B)
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1 Best Time to Buy And Sell Stock(LeetCode 121) [Asked by FacebookMicrosoft].mp4 (26.31 MB)
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1 1 BestTimeToBuyAndSellStock.zip (445 B)
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10 Jump Game (LeetCode 55) [Asked by Google].mp4 (20.8 MB)
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10 1 JumpGameBruteForce.zip (339 B)
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10 2 JumpGameOptimized.zip (335 B)
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11 Sort Colors (LeetCode 75) [Asked by Facebook].mp4 (20.23 MB)
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11 1 SinglePassAlgorithm.zip (433 B)
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11 2 TwoPassAlgorithm.zip (354 B)
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12 Plus One (LeetCode 66) [Asked by Google].mp4 (19.19 MB)
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12 1 GasStation.zip (369 B)
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13 Product of Array Except Self (LeetCode 238) [Asked by Facebook].mp4 (55.42 MB)
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13 1 leetcode-238-product-of-array-except-self.zip (661 B)
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14 Sequential Digits (LeetCode 1291) [Asked by Facebook].mp4 (54.76 MB)
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14 1 SequentialDigits.zip (426 B)
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15 Find All Disappeared Numbers in an Array (LeetCode 448) [Asked by Google].mp4 (44.3 MB)
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15 1 FindAllNumbersDisappearedINAnArray.zip (377 B)
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16 Find All Duplicates Numbers in an Array (Leetcode 442) [Asked by Facebook].mp4 (44.23 MB)
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16 1 FindAllDuplicatesInAnArray.zip (354 B)
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17 First Missing Positive (LeetCode 41) [Asked by Microsoft].mp4 (58.75 MB)
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17 1 FirstMissingPositive.zip (482 B)
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18 Next Permutation (LeetCode 31) [Asked by Google].mp4 (87.82 MB)
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19 Largest Subarray With 0 Sum [Asked by Microsoft].mp4 (57.97 MB)
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19 1 GFG.zip (756 B)
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2 Move Zeroes (LeetCode 283) [Asked by Facebook].mp4 (37.42 MB)
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2 1 MoveZeroes.zip (329 B)
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20 Subarray Product Less than K (LeetCode 713) [Asked by Goldman Sachs].mp4 (51.34 MB)
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20 1 SubarrayProductLessThanK.zip (381 B)
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21 K-Diff Pairs in an Array (LeetCode 532) [Asked by Amazon].mp4 (54.82 MB)
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21 1 KDiffPairsInAnArray.zip (479 B)
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22 Jump Game III (LeetCode 1306) [Asked by Facebook].mp4 (66.58 MB)
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22 1 Solution.zip (847 B)
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23 Minimum Domino Rotations For Equal Row (LeetCode 1007) [Asked by Google].mp4 (34.9 MB)
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23 1 minDominoRotationsForEqualRow.zip (458 B)
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24 132 Pattern 3 Solution (LeetCode 456) [Asked by Meta].mp4 (67.12 MB)
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24 1 132Pattern-Cubic.zip (400 B)
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24 2 132Pattern-Optimal.zip (471 B)
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24 3 132Pattern-Quadratic.zip (413 B)
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25 Sliding Window Maximum (LeetCode 239) [Asked by Google].mp4 (102.63 MB)
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25 1 SlidingWindowMaximum.zip (530 B)
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3 Two Sum (LeetCode 1) [Asked by Google].mp4 (35.82 MB)
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3 1 TwoSum.zip (409 B)
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4 Contains Duplicate (LeetCode 217) [Asked by Google].mp4 (18.11 MB)
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5 Length of Last Word (LeetCode 58) [Asked by Amazon].mp4 (15.73 MB)
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5 1 LengthOfTheLastWord.zip (440 B)
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6 Can Place Flowers(LeetCode 605) [Asked by Google].mp4 (52.44 MB)
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7 Best Time to Buy and Sell Stock II (LeetCode 122) [Asked by Google].mp4 (18.27 MB)
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7 1 BestTimeToBuyAndSellStockII.zip (309 B)
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8 Merge Sorted Array (LeetCode 80) [Asked by Microsoft].mp4 (30 MB)
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8 1 MergeSortedArray.zip (372 B)
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9 Rotate Array (LeetCode 189) [Asked by Microsoft].mp4 (31.35 MB)
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9 1 RotateArray.zip (374 B)
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1 Is Subsequence (LeetCode 392) [Asked by Google].mp4 (39.86 MB)
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1 1 isSubsequence.zip (357 B)
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2 Squares of a Sorted Array (LeetCode 977) [Asked by Facebook].mp4 (42.22 MB)
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3 Remove Duplicates from Sorted Array (LeetCode 26) [Asked by FacebookMicrosoft].mp4 (33.44 MB)
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3 1 RemoveDuplicatesFromSortedArray.zip (325 B)
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4 Valid Palindrome (LeetCode 125) [Asked by Facebook].mp4 (42.23 MB)
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5 3 Sum (LeetCode 15) [Asked by Facebook].mp4 (105.43 MB)
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1 Boyer-Moore Voting Algorithm (Majority Element- LeetCode 169) [Asked by Amazon].mp4 (53.79 MB)
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1 1 MajorityElement-LinearTimeLinearSpace.zip (438 B)
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1 2 MajorityElement-Quadratic Time Solution.zip (380 B)
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1 3 MajorityElementOptimalSolution.zip (367 B)
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2 Kaden's Algorithm (Maximum Subarray LeetCode 53) [Asked by Google].mp4 (49.23 MB)
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1 Merge Sort Algorithm [Asked by Amazon, Microsoft].mp4 (514.61 MB)
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2 [OLD] Merge Sort Sort an Array (LeetCode 912).mp4 (65.69 MB)
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2 1 MergeSortAlgorithm.zip (547 B)
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3 Count Inversions -- Using Merge Sort [Asked by Amazon, Microsoft].mp4 (532.27 MB)
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4 [OLD] Quick Sort Sort an Array (LeetCode 912).mp4 (72.98 MB)
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4 1 QuickSortAlgorithm.zip (440 B)
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5 Quick Sort Algorithm [Asked by Amazon, Microsoft].mp4 (426.36 MB)
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6 Kth LargestSmallest Element (LeetCode 215) [Asked by Google, Microsoft].mp4 (485.24 MB)
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1 Range Sum Query 2D - Immutable (LeetCode 304) [Asked by Amazon].mp4 (52.32 MB)
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2 Search a 2D Matrix (LeetCode 74) [Asked by Microsoft].mp4 (39.84 MB)
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2 1 Search2DMatrix.zip (493 B)
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3 Set Matrix Zeroes (LeetCode 73) [Asked by Facebook].mp4 (107.86 MB)
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4 Set Matrix Zeroes[OLD] (3 Solutions) (LeetCode 73) [Asked by Facebook].mp4 (87.8 MB)
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4 1 O(1) Space Solution.zip (563 B)
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4 2 O(m+n) Space Solution.zip (480 B)
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4 3 O(mn) Space Brute Force Solution.zip (535 B)
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5 Spiral Matrix (LeetCode 54) [Asked by Microsoft].mp4 (298.74 MB)
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6 Spiral Matrix (LeetCode 54) [OLD] [Asked by Microsoft].mp4 (63.81 MB)
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6 1 SpiralMatrix.zip (454 B)
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7 Rotate Image (LeetCode 48) [Asked by Microsoft].mp4 (33.31 MB)
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7 1 PlusOne.zip (578 B)
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