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"7. Serialize and Deserialize Binary Tree" / "297. Serialize and Deserialize Binary Tree" 本题难度: Medium/Hard Topic: Binary Tree Description Design an a 阅读全文
posted @ 2019-02-14 22:57
siriusli
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"11. Search Range in Binary Search Tree" 本题难度: Medium Topic: Binary Tree Description Given a binary search tree and a range [k1, k2], return all eleme 阅读全文
posted @ 2019-02-14 22:10
siriusli
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"700. Search in a Binary Search Tree" 本题难度: Easy Topic: Binary Tree Description Given the root node of a binary search tree (BST) and a value. You nee 阅读全文
posted @ 2019-02-14 21:46
siriusli
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"73. Construct Binary Tree from Preorder and Inorder Traversal" /[105. Construct Binary Tree from Preorder and Inorder Traversal ](https://leetcode.co 阅读全文
posted @ 2019-02-14 21:40
siriusli
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"95. Validate Binary Search Tree" / "98. Validate Binary Search Tree" 本题难度: Easy Topic: Binary Tree Description Given a binary tree, determine if it i 阅读全文
posted @ 2019-02-14 21:31
siriusli
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"66. Binary Tree Preorder Traversal" / "144. Binary Tree Preorder Traversal" 本题难度: Easy/Medium Topic: Binary Tree Description Given a binary tree, ret 阅读全文
posted @ 2019-02-14 20:38
siriusli
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"69. Binary Tree Level Order Traversal" / "102. Binary Tree Level Order Traversal" 本题难度: Easy/Medium Topic: Binary Tree Description Given a binary tre 阅读全文
posted @ 2019-02-14 20:30
siriusli
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"85. Insert Node in a Binary Search Tree" / "701. Insert into a Binary Search Tree" 本题难度: Easy/Medium Topic: Binary Tree Given a binary search tree an 阅读全文
posted @ 2019-02-14 20:11
siriusli
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"93. Balanced Binary Tree" / "110. Balanced Binary Tree" 本题难度: Easy Topic: Binary Tree Description Given a binary tree, determine if it is height bala 阅读全文
posted @ 2019-02-14 19:48
siriusli
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"97. Maximum Depth of Binary Tree" / "104. Maximum Depth of Binary Tree" 本题难度: Easy Topic: Binary Tree Description Given a binary tree, find its maxim 阅读全文
posted @ 2019-02-14 19:19
siriusli
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"98. Sort List" / "148. Sort List" 本题难度: Medium Topic: Linked List Description Sort a linked list in O(n log n) time using constant space complexity. 阅读全文
posted @ 2019-02-14 18:58
siriusli
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"99. Reorder List" /[143. Reorder List ](https://leetcode.com/problems/reorder list/) 本题难度: Medium Topic: Linked List Description Given a singly linke 阅读全文
posted @ 2019-02-14 18:27
siriusli
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"102. Linked List Cycle" / "141. Linked List Cycle" 本题难度: Medium/Easy Topic: Linked List Description A linked list is given such that each node contai 阅读全文
posted @ 2019-02-14 17:05
siriusli
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"106. Convert Sorted List to Binary Search Tree" / "109. Convert Sorted List to Binary Search Tree" 本题难度: Medium/Easy Topic: Linked List Description A 阅读全文
posted @ 2019-02-14 17:04
siriusli
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"105. Copy List with Random Pointer" / "138. Copy List with Random Pointer" 本题难度: Medium Topic: Linked List A linked list is given such that each node 阅读全文
posted @ 2019-02-14 16:51
siriusli
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"106. Convert Sorted List to Binary Search Tree" / "109. Convert Sorted List to Binary Search Tree" 本题难度: Medium/Medium Topic: Linked List Description 阅读全文
posted @ 2019-02-14 15:10
siriusli
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