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leetcode-problemset/leetcode-cn/originData/pond-sizes-lcci.json
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{
"data": {
"question": {
"questionId": "1000005",
"questionFrontendId": "面试题 16.19",
"categoryTitle": "LCCI",
"boundTopicId": 91358,
"title": "Pond Sizes LCCI",
"titleSlug": "pond-sizes-lcci",
"content": "<p>You have an integer matrix representing a plot of land, where the value at that loca&shy;tion represents the height above sea level. A value of zero indicates water. A pond is a region of water connected vertically, horizontally, or diagonally. The size of the pond is the total number of connected water cells. Write a method to compute the sizes of all ponds in the matrix.</p>\r\n\r\n<p><strong>Example: </strong></p>\r\n\r\n<pre>\r\n<strong>Input: </strong>\r\n[\r\n [0,2,1,0],\r\n [0,1,0,1],\r\n [1,1,0,1],\r\n [0,1,0,1]\r\n]\r\n<strong>Output: </strong> [1,2,4]\r\n</pre>\r\n\r\n<p><strong>Note: </strong></p>\r\n\r\n<ul>\r\n\t<li><code>0 &lt; len(land) &lt;= 1000</code></li>\r\n\t<li><code>0 &lt; len(land[i]) &lt;= 1000</code></li>\r\n</ul>\r\n",
"translatedTitle": "水域大小",
"translatedContent": "<p>你有一个用于表示一片土地的整数矩阵<code>land</code>该矩阵中每个点的值代表对应地点的海拔高度。若值为0则表示水域。由垂直、水平或对角连接的水域为池塘。池塘的大小是指相连接的水域的个数。编写一个方法来计算矩阵中所有池塘的大小返回值需要从小到大排序。</p>\n<p><strong>示例:</strong></p>\n<pre><strong>输入:</strong>\n[\n [0,2,1,0],\n [0,1,0,1],\n [1,1,0,1],\n [0,1,0,1]\n]\n<strong>输出:</strong> [1,2,4]\n</pre>\n<p><strong>提示:</strong></p>\n<ul>\n<li><code>0 < len(land) <= 1000</code></li>\n<li><code>0 < len(land[i]) <= 1000</code></li>\n</ul>\n",
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"slug": "depth-first-search",
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"lang": "C++",
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"code": "class Solution {\npublic:\n vector<int> pondSizes(vector<vector<int>>& land) {\n\n }\n};",
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"code": "class Solution {\n public int[] pondSizes(int[][] land) {\n\n }\n}",
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"code": "class Solution(object):\n def pondSizes(self, land):\n \"\"\"\n :type land: List[List[int]]\n :rtype: List[int]\n \"\"\"",
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"lang": "C",
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"code": "\n\n/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* pondSizes(int** land, int landSize, int* landColSize, int* returnSize){\n\n}\n",
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"code": "# @param {Integer[][]} land\n# @return {Integer[]}\ndef pond_sizes(land)\n\nend",
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"hints": [
"如果给你一个指代水的单元格的行和列,你如何找到所有相邻的水域?",
"尝试递归计算含水单元格的数目。",
"你如何确保不会再次访问相同的单元格?考虑一下图上的广度优先搜索或深度优先搜索是如何工作的。",
"你应该有一个算法其在N×N矩阵上的时间复杂度是O(N2)。如果你的算法并非如此,请考虑是否错误地计算了时间复杂度,或者是否你的算法不是最优的。"
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"book": {
"id": "2",
"bookName": "《程序员面试金典(第 6 版)》",
"pressName": "图灵公司",
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