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2022-05-02 23:44:12 +08:00
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leetcode-cn/originData/average-of-levels-in-binary-tree.json
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@@ -12,7 +12,7 @@
"translatedContent": "<p>给定一个非空二叉树的根节点<meta charset=\"UTF-8\" />&nbsp;<code>root</code>&nbsp;, 以数组的形式返回每一层节点的平均值。与实际答案相差&nbsp;<code>10<sup>-5</sup></code> 以内的答案可以被接受。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/03/09/avg1-tree.jpg\" /></p>\n\n<pre>\n<strong>输入：</strong>root = [3,9,20,null,null,15,7]\n<strong>输出：</strong>[3.00000,14.50000,11.00000]\n<strong>解释：</strong>第 0 层的平均值为 3,第 1 层的平均值为 14.5,第 2 层的平均值为 11 。\n因此返回 [3, 14.5, 11] 。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/03/09/avg2-tree.jpg\" /></p>\n\n<pre>\n<strong>输入：</strong>root = [3,9,20,15,7]\n<strong>输出：</strong>[3.00000,14.50000,11.00000]\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<p><meta charset=\"UTF-8\" /></p>\n\n<ul>\n\t<li>树中节点数量在&nbsp;<code>[1, 10<sup>4</sup>]</code> 范围内</li>\n\t<li><code>-2<sup>31</sup>&nbsp;&lt;= Node.val &lt;= 2<sup>31</sup>&nbsp;- 1</code></li>\n</ul>\n",
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"difficulty": "Easy",
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"similarQuestions": "[{\"title\": \"Binary Tree Level Order Traversal\", \"titleSlug\": \"binary-tree-level-order-traversal\", \"difficulty\": \"Medium\", \"translatedTitle\": \"\\u4e8c\\u53c9\\u6811\\u7684\\u5c42\\u5e8f\\u904d\\u5386\"}, {\"title\": \"Binary Tree Level Order Traversal II\", \"titleSlug\": \"binary-tree-level-order-traversal-ii\", \"difficulty\": \"Medium\", \"translatedTitle\": \"\\u4e8c\\u53c9\\u6811\\u7684\\u5c42\\u5e8f\\u904d\\u5386 II\"}]",
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