update

leetcode-cn/originData/couples-holding-hands.json

@@ -12,7 +12,7 @@
             "translatedContent": "<p><code>n</code> 对情侣坐在连续排列的 <code>2n</code>&nbsp;个座位上，想要牵到对方的手。</p>\n\n<p>人和座位由一个整数数组 <code>row</code> 表示，其中 <code>row[i]</code> 是坐在第 <code>i </code>个座位上的人的 <strong>ID</strong>。情侣们按顺序编号，第一对是&nbsp;<code>(0, 1)</code>，第二对是&nbsp;<code>(2, 3)</code>，以此类推，最后一对是&nbsp;<code>(2n-2, 2n-1)</code>。</p>\n\n<p>返回 <em>最少交换座位的次数，以便每对情侣可以并肩坐在一起</em>。 <i>每次</i>交换可选择任意两人，让他们站起来交换座位。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:</strong> row = [0,2,1,3]\n<strong>输出:</strong> 1\n<strong>解释:</strong> 只需要交换row[1]和row[2]的位置即可。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong> row = [3,2,0,1]\n<strong>输出:</strong> 0\n<strong>解释:</strong> 无需交换座位，所有的情侣都已经可以手牵手了。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>2n == row.length</code></li>\n\t<li><code>2 &lt;= n &lt;= 30</code></li>\n\t<li><code>n</code>&nbsp;是偶数</li>\n\t<li><code>0 &lt;= row[i] &lt; 2n</code></li>\n\t<li><code>row</code>&nbsp;中所有元素均<strong>无重复</strong></li>\n</ul>\n",
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             "difficulty": "Hard",
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@@ -161,7 +161,7 @@
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             "hints": [
                 "Say there are N two-seat couches.  For each couple, draw an edge from the couch of one partner to the couch of the other partner."
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