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"translatedContent": "<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/03/21/cinema_seats_1.png\" style=\"height: 149px; width: 400px;\"></p>\n\n<p>如上图所示,电影院的观影厅中有 <code>n</code>&nbsp;行座位,行编号从 1&nbsp;到 <code>n</code>&nbsp;,且每一行内总共有 10 个座位,列编号从 1 到 10 。</p>\n\n<p>给你数组&nbsp;<code>reservedSeats</code>&nbsp;,包含所有已经被预约了的座位。比如说,<code>researvedSeats[i]=[3,8]</code>&nbsp;,它表示第&nbsp;<strong>3</strong>&nbsp;行第&nbsp;<strong>8</strong>&nbsp;个座位被预约了。</p>\n\n<p>请你返回&nbsp;<strong>最多能安排多少个 4 人家庭</strong>&nbsp;。4 人家庭要占据&nbsp;<strong>同一行内连续&nbsp;</strong>的 4 个座位。隔着过道的座位(比方说 [3,3] 和 [3,4])不是连续的座位,但是如果你可以将 4 人家庭拆成过道两边各坐 2 人,这样子是允许的。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/03/21/cinema_seats_3.png\" style=\"height: 96px; width: 400px;\"></p>\n\n<pre><strong>输入:</strong>n = 3, reservedSeats = [[1,2],[1,3],[1,8],[2,6],[3,1],[3,10]]\n<strong>输出:</strong>4\n<strong>解释:</strong>上图所示是最优的安排方案,总共可以安排 4 个家庭。蓝色的叉表示被预约的座位,橙色的连续座位表示一个 4 人家庭。\n</pre>\n\n<p><strong>示例 2</strong></p>\n\n<pre><strong>输入:</strong>n = 2, reservedSeats = [[2,1],[1,8],[2,6]]\n<strong>输出:</strong>2\n</pre>\n\n<p><strong>示例 3</strong></p>\n\n<pre><strong>输入:</strong>n = 4, reservedSeats = [[4,3],[1,4],[4,6],[1,7]]\n<strong>输出:</strong>4\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n &lt;= 10^9</code></li>\n\t<li><code>1 &lt;=&nbsp;reservedSeats.length &lt;= min(10*n, 10^4)</code></li>\n\t<li><code>reservedSeats[i].length == 2</code></li>\n\t<li><code>1&nbsp;&lt;=&nbsp;reservedSeats[i][0] &lt;= n</code></li>\n\t<li><code>1 &lt;=&nbsp;reservedSeats[i][1] &lt;= 10</code></li>\n\t<li>所有&nbsp;<code>reservedSeats[i]</code> 都是互不相同的。</li>\n</ul>\n",
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"difficulty": "Medium",
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@@ -155,7 +155,7 @@
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"hints": [
"Note you can allocate at most two families in one row.",
"Greedily check if you can allocate seats for two families, one family or none.",