{"id":363,"date":"2020-09-26T10:31:19","date_gmt":"2020-09-26T02:31:19","guid":{"rendered":"http:\/\/39.96.58.60\/?p=363"},"modified":"2022-10-18T16:39:35","modified_gmt":"2022-10-18T08:39:35","slug":"leetcode-%e5%89%91%e6%8c%87-offer-32-ii-%e4%bb%8e%e4%b8%8a%e5%88%b0%e4%b8%8b%e6%89%93%e5%8d%b0%e4%ba%8c%e5%8f%89%e6%a0%91-ii","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=363","title":{"rendered":"Leetcode \u5251\u6307 Offer 32 – II. \u4ece\u4e0a\u5230\u4e0b\u6253\u5370\u4e8c\u53c9\u6811 II"},"content":{"rendered":"

\u4ece\u4e0a\u5230\u4e0b\u6309\u5c42\u6253\u5370\u4e8c\u53c9\u6811\uff0c\u540c\u4e00\u5c42\u7684\u8282\u70b9\u6309\u4ece\u5de6\u5230\u53f3\u7684\u987a\u5e8f\u6253\u5370\uff0c\u6bcf\u4e00\u5c42\u6253\u5370\u5230\u4e00\u884c\u3002<\/p>\n

 <\/p>\n

\u4f8b\u5982:<\/p>\n

\u7ed9\u5b9a\u4e8c\u53c9\u6811: [3,9,20,null,null,15,7]<\/code>,<\/p>\n

    3\n\n   \/ \\\n\n  9  20\n\n    \/  \\\n\n   15   7\n\n<\/pre>\n
\u8fd4\u56de\u5176\u5c42\u6b21\u904d\u5386\u7ed3\u679c\uff1a<\/p>\n
[\n\n  [3],\n\n  [9,20],\n\n  [15,7]\n\n]\n\n<\/pre>\n
 <\/p>\n
\u63d0\u793a\uff1a<\/strong><\/p>\n
    \n
  1. \u8282\u70b9\u603b\u6570 <= 1000<\/code><\/li>\n<\/ol>\n
    \u6ce8\u610f\uff1a\u672c\u9898\u4e0e\u4e3b\u7ad9 102 \u9898\u76f8\u540c\uff1ahttps:\/\/leetcode-cn.com\/problems\/binary-tree-level-order-traversal\/<\/a><\/p>\n
    **\u96be\u5ea6**: Easy<\/p>\n
    **\u6807\u7b7e**: \u6811\u3001 \u5e7f\u5ea6\u4f18\u5148\u641c\u7d22\u3001<\/p>\n
    \n
    \n# -*- coding: utf-8 -*-\n# @Author  : LG\n\n\"\"\"\n\u6267\u884c\u7528\u65f6\uff1a40 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8684.24% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a14.2 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e865.03%\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u9012\u5f52\n\"\"\"\n# Definition for a binary tree node.\n# class TreeNode:\n#     def __init__(self, x):\n#         self.val = x\n#         self.left = None\n#         self.right = None\n\nclass Solution:\n    def levelOrder(self, root: TreeNode) -> List[List[int]]:\n        result = []\n        def find(root, deep):   # \u4f7f\u7528deep\u8bb0\u5f55\u5f53\u524d\u6df1\u5ea6\n            if root:\n                if deep > len(result)-1:\n                    result.append([])\n                result[deep].append(root.val)   # \u6dfb\u52a0\u5230\u6700\u7ec8\u7ed3\u679c\u7684\u5bf9\u5e94\u6df1\u5ea6\u5217\u8868\u4e2d\n                find(root.left, deep+1)     # \u5904\u7406\u5de6\u5b50\u6811\n                find(root.right, deep+1)    # \u53f3\u5b50\u6811\n        find(root, 0)\n        return result<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
    \u4ece\u4e0a\u5230\u4e0b\u6309\u5c42\u6253\u5370\u4e8c\u53c9\u6811\uff0c\u540c\u4e00\u5c42\u7684\u8282\u70b9\u6309\u4ece\u5de6\u5230\u53f3\u7684\u987a\u5e8f\u6253\u5370\uff0c\u6bcf\u4e00\u5c42\u6253\u5370\u5230\u4e00\u884c\u3002   \u4f8b\u5982: \u7ed9\u5b9a\u4e8c\u53c9\u6811…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/363"}],"collection":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=363"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/363\/revisions"}],"predecessor-version":[{"id":364,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/363\/revisions\/364"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=363"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}