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add leetcode problem-cn part2

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2022-03-27 20:38:29 +08:00
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算法题（国内版）/problem (Chinese)/数组中的逆序对 [shu-zu-zhong-de-ni-xu-dui-lcof].html Normal file
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<p>在数组中的两个数字，如果前面一个数字大于后面的数字，则这两个数字组成一个逆序对。输入一个数组，求出这个数组中的逆序对的总数。</p>
<p>&nbsp;</p>
<p><strong>示例 1:</strong></p>
<pre><strong>输入</strong>: [7,5,6,4]
<strong>输出</strong>: 5</pre>
<p>&nbsp;</p>
<p><strong>限制：</strong></p>
<p><code>0 &lt;= 数组长度 &lt;= 50000</code></p>