mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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184 lines
27 KiB
JSON
184 lines
27 KiB
JSON
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"categoryTitle": "Algorithms",
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"boundTopicId": 1716,
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"title": "Leaf-Similar Trees",
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"titleSlug": "leaf-similar-trees",
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"content": "<p>Consider all the leaves of a binary tree, from left to right order, the values of those leaves form a <strong>leaf value sequence</strong><em>.</em></p>\n\n<p><img alt=\"\" src=\"https://s3-lc-upload.s3.amazonaws.com/uploads/2018/07/16/tree.png\" style=\"width: 400px; height: 336px;\" /></p>\n\n<p>For example, in the given tree above, the leaf value sequence is <code>(6, 7, 4, 9, 8)</code>.</p>\n\n<p>Two binary trees are considered <em>leaf-similar</em> if their leaf value sequence is the same.</p>\n\n<p>Return <code>true</code> if and only if the two given trees with head nodes <code>root1</code> and <code>root2</code> are leaf-similar.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/03/leaf-similar-1.jpg\" style=\"width: 600px; height: 237px;\" />\n<pre>\n<strong>Input:</strong> root1 = [3,5,1,6,2,9,8,null,null,7,4], root2 = [3,5,1,6,7,4,2,null,null,null,null,null,null,9,8]\n<strong>Output:</strong> true\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/03/leaf-similar-2.jpg\" style=\"width: 300px; height: 110px;\" />\n<pre>\n<strong>Input:</strong> root1 = [1,2,3], root2 = [1,3,2]\n<strong>Output:</strong> false\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>The number of nodes in each tree will be in the range <code>[1, 200]</code>.</li>\n\t<li>Both of the given trees will have values in the range <code>[0, 200]</code>.</li>\n</ul>\n",
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"translatedTitle": "叶子相似的树",
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"translatedContent": "<p>请考虑一棵二叉树上所有的叶子，这些叶子的值按从左到右的顺序排列形成一个 <strong>叶值序列 </strong>。</p>\n\n<p><img alt=\"\" src=\"https://s3-lc-upload.s3.amazonaws.com/uploads/2018/07/16/tree.png\" style=\"height: 336px; width: 400px;\" /></p>\n\n<p>举个例子，如上图所示，给定一棵叶值序列为 <code>(6, 7, 4, 9, 8)</code> 的树。</p>\n\n<p>如果有两棵二叉树的叶值序列是相同，那么我们就认为它们是 <em>叶相似 </em>的。</p>\n\n<p>如果给定的两个根结点分别为 <code>root1</code> 和 <code>root2</code> 的树是叶相似的，则返回 <code>true</code>；否则返回 <code>false</code> 。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/03/leaf-similar-1.jpg\" style=\"height: 237px; width: 600px;\" /></p>\n\n<pre>\n<strong>输入：</strong>root1 = [3,5,1,6,2,9,8,null,null,7,4], root2 = [3,5,1,6,7,4,2,null,null,null,null,null,null,9,8]\n<strong>输出：</strong>true\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/03/leaf-similar-2.jpg\" style=\"height: 110px; width: 300px;\" /></p>\n\n<pre>\n<strong>输入：</strong>root1 = [1,2,3], root2 = [1,3,2]\n<strong>输出：</strong>false\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>给定的两棵树结点数在 <code>[1, 200]</code> 范围内</li>\n\t<li>给定的两棵树上的值在 <code>[0, 200]</code> 范围内</li>\n</ul>\n",
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"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}\n * };\n */\nclass Solution {\npublic:\n bool leafSimilar(TreeNode* root1, TreeNode* root2) {\n\n }\n};",
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"code": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * public $val = null;\n * public $left = null;\n * public $right = null;\n * function __construct($val = 0, $left = null, $right = null) {\n * $this->val = $val;\n * $this->left = $left;\n * $this->right = $right;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param TreeNode $root1\n * @param TreeNode $root2\n * @return Boolean\n */\n function leafSimilar($root1, $root2) {\n\n }\n}",
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"code": "/**\n * Example:\n * var ti = TreeNode(5)\n * var v = ti.`val`\n * Definition for a binary tree node.\n * class TreeNode(var `val`: Int) {\n * var left: TreeNode? = null\n * var right: TreeNode? = null\n * }\n */\nclass Solution {\n fun leafSimilar(root1: TreeNode?, root2: TreeNode?): Boolean {\n\n }\n}",
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