Leetcode 94 Solution
This article provides solution to leetcode question 94 (binary-tree-inorder-traversal)
Tag: lc-alg-depth-first-search
Leetcode 98 Solution
This article provides solution to leetcode question 98 (validate-binary-search-tree)
Leetcode 99 Solution
This article provides solution to leetcode question 99 (recover-binary-search-tree)
Leetcode 100 Solution
This article provides solution to leetcode question 100 (same-tree)
Leetcode 101 Solution
This article provides solution to leetcode question 101 (symmetric-tree)
Leetcode 104 Solution
This article provides solution to leetcode question 104 (maximum-depth-of-binary-tree)
Leetcode 110 Solution
This article provides solution to leetcode question 110 (balanced-binary-tree)
Leetcode 111 Solution
This article provides solution to leetcode question 111 (minimum-depth-of-binary-tree)
Leetcode 112 Solution
This article provides solution to leetcode question 112 (path-sum)
Leetcode 113 Solution
This article provides solution to leetcode question 113 (path-sum-ii)
Leetcode 114 Solution
This article provides solution to leetcode question 114 (flatten-binary-tree-to-linked-list)
Leetcode 116 Solution
This article provides solution to leetcode question 116 (populating-next-right-pointers-in-each-node)
Leetcode 117 Solution
This article provides solution to leetcode question 117 (populating-next-right-pointers-in-each-node-ii)
Leetcode 124 Solution
This article provides solution to leetcode question 124 (binary-tree-maximum-path-sum)
Leetcode 129 Solution
This article provides solution to leetcode question 129 (sum-root-to-leaf-numbers)
Leetcode 130 Solution
This article provides solution to leetcode question 130 (surrounded-regions)
Leetcode 133 Solution
This article provides solution to leetcode question 133 (clone-graph)
Leetcode 144 Solution
This article provides solution to leetcode question 144 (binary-tree-preorder-traversal)
Leetcode 145 Solution
This article provides solution to leetcode question 145 (binary-tree-postorder-traversal)
Leetcode 199 Solution
This article provides solution to leetcode question 199 (binary-tree-right-side-view)
Leetcode 200 Solution
This article provides solution to leetcode question 200 (number-of-islands)
Leetcode 207 Solution
This article provides solution to leetcode question 207 (course-schedule)
Leetcode 210 Solution
This article provides solution to leetcode question 210 (course-schedule-ii)
Leetcode 211 Solution
This article provides solution to leetcode question 211 (design-add-and-search-words-data-structure)
Leetcode 222 Solution
This article provides solution to leetcode question 222 (count-complete-tree-nodes)
Leetcode 226 Solution
This article provides solution to leetcode question 226 (invert-binary-tree)
Leetcode 230 Solution
This article provides solution to leetcode question 230 (kth-smallest-element-in-a-bst)
Leetcode 235 Solution
This article provides solution to leetcode question 235 (lowest-common-ancestor-of-a-binary-search-tree)
Leetcode 236 Solution
This article provides solution to leetcode question 236 (lowest-common-ancestor-of-a-binary-tree)
Leetcode 257 Solution
This article provides solution to leetcode question 257 (binary-tree-paths)
Leetcode 297 Solution
This article provides solution to leetcode question 297 (serialize-and-deserialize-binary-tree)
Leetcode 310 Solution
This article provides solution to leetcode question 310 (minimum-height-trees)
Leetcode 329 Solution
This article provides solution to leetcode question 329 (longest-increasing-path-in-a-matrix)
Leetcode 332 Solution
This article provides solution to leetcode question 332 (reconstruct-itinerary)
Leetcode 337 Solution
This article provides solution to leetcode question 337 (house-robber-iii)
Leetcode 341 Solution
This article provides solution to leetcode question 341 (flatten-nested-list-iterator)
Leetcode 365 Solution
This article provides solution to leetcode question 365 (water-and-jug-problem)
Leetcode 385 Solution
This article provides solution to leetcode question 385 (mini-parser)
Leetcode 386 Solution
This article provides solution to leetcode question 386 (lexicographical-numbers)
Leetcode 388 Solution
This article provides solution to leetcode question 388 (longest-absolute-file-path)
Leetcode 399 Solution
This article provides solution to leetcode question 399 (evaluate-division)
Leetcode 404 Solution
This article provides solution to leetcode question 404 (sum-of-left-leaves)
Leetcode 417 Solution
This article provides solution to leetcode question 417 (pacific-atlantic-water-flow)
Leetcode 419 Solution
This article provides solution to leetcode question 419 (battleships-in-a-board)
Leetcode 437 Solution
This article provides solution to leetcode question 437 (path-sum-iii)
Leetcode 449 Solution
This article provides solution to leetcode question 449 (serialize-and-deserialize-bst)
Leetcode 463 Solution
This article provides solution to leetcode question 463 (island-perimeter)
Leetcode 472 Solution
This article provides solution to leetcode question 472 (concatenated-words)
Leetcode 501 Solution
This article provides solution to leetcode question 501 (find-mode-in-binary-search-tree)
Leetcode 508 Solution
This article provides solution to leetcode question 508 (most-frequent-subtree-sum)
Leetcode 513 Solution
This article provides solution to leetcode question 513 (find-bottom-left-tree-value)
Leetcode 515 Solution
This article provides solution to leetcode question 515 (find-largest-value-in-each-tree-row)
Leetcode 529 Solution
This article provides solution to leetcode question 529 (minesweeper)
Leetcode 530 Solution
This article provides solution to leetcode question 530 (minimum-absolute-difference-in-bst)
Leetcode 538 Solution
This article provides solution to leetcode question 538 (convert-bst-to-greater-tree)
Leetcode 543 Solution
This article provides solution to leetcode question 543 (diameter-of-binary-tree)
Leetcode 547 Solution
This article provides solution to leetcode question 547 (number-of-provinces)
Leetcode 563 Solution
This article provides solution to leetcode question 563 (binary-tree-tilt)
Leetcode 565 Solution
This article provides solution to leetcode question 565 (array-nesting)
Leetcode 572 Solution
This article provides solution to leetcode question 572 (subtree-of-another-tree)
Leetcode 606 Solution
This article provides solution to leetcode question 606 (construct-string-from-binary-tree)
Leetcode 617 Solution
This article provides solution to leetcode question 617 (merge-two-binary-trees)
Leetcode 623 Solution
This article provides solution to leetcode question 623 (add-one-row-to-tree)
Leetcode 637 Solution
This article provides solution to leetcode question 637 (average-of-levels-in-binary-tree)
Leetcode 652 Solution
This article provides solution to leetcode question 652 (find-duplicate-subtrees)
Leetcode 653 Solution
This article provides solution to leetcode question 653 (two-sum-iv-input-is-a-bst)
Leetcode 655 Solution
This article provides solution to leetcode question 655 (print-binary-tree)
Leetcode 662 Solution
This article provides solution to leetcode question 662 (maximum-width-of-binary-tree)
Leetcode 669 Solution
This article provides solution to leetcode question 669 (trim-a-binary-search-tree)
Leetcode 671 Solution
This article provides solution to leetcode question 671 (second-minimum-node-in-a-binary-tree)
Leetcode 672 Solution
This article provides solution to leetcode question 672 (bulb-switcher-ii)
Leetcode 684 Solution
This article provides solution to leetcode question 684 (redundant-connection)
Leetcode 687 Solution
This article provides solution to leetcode question 687 (longest-univalue-path)
Leetcode 690 Solution
This article provides solution to leetcode question 690 (employee-importance)
Leetcode 695 Solution
This article provides solution to leetcode question 695 (max-area-of-island)
Leetcode 721 Solution
This article provides solution to leetcode question 721 (accounts-merge)
Leetcode 733 Solution
This article provides solution to leetcode question 733 (flood-fill)
Leetcode 744 Solution
This article provides solution to leetcode question 744 (network-delay-time)
Leetcode 766 Solution
This article provides solution to leetcode question 766 (flatten-a-multilevel-doubly-linked-list)
Leetcode 774 Solution
This article provides solution to leetcode question 774 (maximum-depth-of-n-ary-tree)
Leetcode 775 Solution
This article provides solution to leetcode question 775 (n-ary-tree-preorder-traversal)
Leetcode 776 Solution
This article provides solution to leetcode question 776 (n-ary-tree-postorder-traversal)
Leetcode 794 Solution
This article provides solution to leetcode question 794 (swim-in-rising-water)
Leetcode 799 Solution
This article provides solution to leetcode question 799 (minimum-distance-between-bst-nodes)
Leetcode 801 Solution
This article provides solution to leetcode question 801 (is-graph-bipartite)
Leetcode 803 Solution
This article provides solution to leetcode question 803 (cheapest-flights-within-k-stops)
Leetcode 813 Solution
This article provides solution to leetcode question 813 (all-paths-from-source-to-target)
Leetcode 820 Solution
This article provides solution to leetcode question 820 (find-eventual-safe-states)
Leetcode 832 Solution
This article provides solution to leetcode question 832 (binary-tree-pruning)
Leetcode 863 Solution
This article provides solution to leetcode question 863 (sum-of-distances-in-tree)
Leetcode 871 Solution
This article provides solution to leetcode question 871 (keys-and-rooms)
Leetcode 893 Solution
This article provides solution to leetcode question 893 (all-nodes-distance-k-in-binary-tree)
Leetcode 896 Solution
This article provides solution to leetcode question 896 (smallest-subtree-with-all-the-deepest-nodes)
Leetcode 904 Solution
This article provides solution to leetcode question 904 (leaf-similar-trees)
Leetcode 922 Solution
This article provides solution to leetcode question 922 (possible-bipartition)
Leetcode 933 Solution
This article provides solution to leetcode question 933 (increasing-order-search-tree)
Leetcode 960 Solution
This article provides solution to leetcode question 960 (minimize-malware-spread)
Leetcode 964 Solution
This article provides solution to leetcode question 964 (minimize-malware-spread-ii)
Leetcode 971 Solution
This article provides solution to leetcode question 971 (shortest-bridge)
Leetcode 975 Solution
This article provides solution to leetcode question 975 (range-sum-of-bst)
Leetcode 984 Solution
This article provides solution to leetcode question 984 (most-stones-removed-with-same-row-or-column)
Leetcode 988 Solution
This article provides solution to leetcode question 988 (flip-equivalent-binary-trees)
Leetcode 999 Solution
This article provides solution to leetcode question 999 (regions-cut-by-slashes)
Leetcode 1005 Solution
This article provides solution to leetcode question 1005 (univalued-binary-tree)
Leetcode 1011 Solution
This article provides solution to leetcode question 1011 (flip-binary-tree-to-match-preorder-traversal)
Leetcode 1021 Solution
This article provides solution to leetcode question 1021 (distribute-coins-in-binary-tree)
Leetcode 1029 Solution
This article provides solution to leetcode question 1029 (vertical-order-traversal-of-a-binary-tree)
Leetcode 1030 Solution
This article provides solution to leetcode question 1030 (smallest-string-starting-from-leaf)
Leetcode 1035 Solution
This article provides solution to leetcode question 1035 (cousins-in-binary-tree)
Leetcode 1073 Solution
This article provides solution to leetcode question 1073 (number-of-enclaves)
Leetcode 1079 Solution
This article provides solution to leetcode question 1079 (sum-of-root-to-leaf-binary-numbers)
Leetcode 1092 Solution
This article provides solution to leetcode question 1092 (maximum-difference-between-node-and-ancestor)
Leetcode 1093 Solution
This article provides solution to leetcode question 1093 (recover-a-tree-from-preorder-traversal)
Leetcode 1114 Solution
This article provides solution to leetcode question 1114 (binary-search-tree-to-greater-sum-tree)
Leetcode 1116 Solution
This article provides solution to leetcode question 1116 (maximum-level-sum-of-a-binary-tree)
Leetcode 1157 Solution
This article provides solution to leetcode question 1157 (insufficient-nodes-in-root-to-leaf-paths)
Leetcode 1207 Solution
This article provides solution to leetcode question 1207 (delete-nodes-and-return-forest)
Leetcode 1218 Solution
This article provides solution to leetcode question 1218 (lowest-common-ancestor-of-deepest-leaves)
Leetcode 1243 Solution
This article provides solution to leetcode question 1243 (sum-of-nodes-with-even-valued-grandparent)
Leetcode 1254 Solution
This article provides solution to leetcode question 1254 (deepest-leaves-sum)
Leetcode 1275 Solution
This article provides solution to leetcode question 1275 (validate-binary-tree-nodes)
Leetcode 1285 Solution
This article provides solution to leetcode question 1285 (balance-a-binary-search-tree)
Leetcode 1300 Solution
This article provides solution to leetcode question 1300 (critical-connections-in-a-network)
Leetcode 1308 Solution
This article provides solution to leetcode question 1308 (smallest-string-with-swaps)
Leetcode 1380 Solution
This article provides solution to leetcode question 1380 (number-of-closed-islands)
Leetcode 1387 Solution
This article provides solution to leetcode question 1387 (find-elements-in-a-contaminated-binary-tree)
Leetcode 1396 Solution
This article provides solution to leetcode question 1396 (count-servers-that-communicate)
Leetcode 1428 Solution
This article provides solution to leetcode question 1428 (jump-game-iii)
Leetcode 1450 Solution
This article provides solution to leetcode question 1450 (delete-leaves-with-a-given-value)
Leetcode 1465 Solution
This article provides solution to leetcode question 1465 (maximum-product-of-splitted-binary-tree)
Leetcode 1474 Solution
This article provides solution to leetcode question 1474 (longest-zigzag-path-in-a-binary-tree)
Leetcode 1484 Solution
This article provides solution to leetcode question 1484 (linked-list-in-binary-tree)
Leetcode 1492 Solution
This article provides solution to leetcode question 1492 (time-needed-to-inform-all-employees)
Leetcode 1498 Solution
This article provides solution to leetcode question 1498 (find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree)
Leetcode 1544 Solution
This article provides solution to leetcode question 1544 (count-good-nodes-in-binary-tree)
Leetcode 1554 Solution
This article provides solution to leetcode question 1554 (minimum-time-to-collect-all-apples-in-a-tree)
Leetcode 1558 Solution
This article provides solution to leetcode question 1558 (course-schedule-iv)
Leetcode 1643 Solution
This article provides solution to leetcode question 1643 (number-of-nodes-in-the-sub-tree-with-the-same-label)
Leetcode 1663 Solution
This article provides solution to leetcode question 1663 (detect-cycles-in-2d-grid)
Leetcode 1753 Solution
This article provides solution to leetcode question 1753 (path-with-minimum-effort)
Leetcode 2035 Solution
This article provides solution to leetcode question 2035 (count-sub-islands)
Leetcode 2217 Solution
This article provides solution to leetcode question 2217 (step-by-step-directions-from-a-binary-tree-node-to-another)