leetcode-problemset/leetcode-cn/originData/shu-zu-zhong-de-ni-xu-dui-lcof.json

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        "question": {
            "questionId": "100318",
            "questionFrontendId": "LCR 170",
            "categoryTitle": "Algorithms",
            "boundTopicId": 87324,
            "title": "交易逆序对的总数",
            "titleSlug": "shu-zu-zhong-de-ni-xu-dui-lcof",
            "content": "English description is not available for the problem. Please switch to Chinese.",
            "translatedTitle": "交易逆序对的总数",
            "translatedContent": "<p>在股票交易中，如果前一天的股价高于后一天的股价，则可以认为存在一个「交易逆序对」。请设计一个程序，输入一段时间内的股票交易记录 <code>record</code>，返回其中存在的「交易逆序对」总数。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>record = [9, 7, 5, 4, 6]\n<strong>输出：</strong>8\n<strong>解释：</strong>交易中的逆序对为 (9, 7), (9, 5), (9, 4), (9, 6), (7, 5), (7, 4), (7, 6), (5, 4)。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<p><code>0 &lt;= record.length &lt;= 50000</code></p>\n",
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