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"translatedContent": "<p>学校打算为全体学生拍一张年度纪念照。根据要求,学生需要按照 <strong>非递减</strong> 的高度顺序排成一行。</p>\n\n<p>排序后的高度情况用整数数组 <code>expected</code> 表示,其中 <code>expected[i]</code> 是预计排在这一行中第 <code>i</code> 位的学生的高度(<strong>下标从 0 开始</strong>)。</p>\n\n<p>给你一个整数数组 <code>heights</code> ,表示 <strong>当前学生站位</strong> 的高度情况。<code>heights[i]</code> 是这一行中第 <code>i</code> 位学生的高度(<strong>下标从 0 开始</strong>)。</p>\n\n<p>返回满足<em> </em><code>heights[i] != expected[i]</code> 的 <strong>下标数量</strong> 。</p>\n\n<p> </p>\n\n<p><strong>示例:</strong></p>\n\n<pre>\n<strong>输入:</strong>heights = [1,1,4,2,1,3]\n<strong>输出:</strong>3 \n<strong>解释:</strong>\n高度:[1,1,<em><strong>4</strong></em>,2,<em><strong>1</strong></em>,<em><strong>3</strong></em>]\n预期:[1,1,<em><strong>1</strong></em>,2,<em><strong>3</strong></em>,<em><strong>4</strong></em>]\n下标 2 、4 、5 处的学生高度不匹配。</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong>heights = [5,1,2,3,4]\n<strong>输出:</strong>5\n<strong>解释:</strong>\n高度:[<em><strong>5</strong></em>,<em><strong>1</strong></em>,<em><strong>2</strong></em>,<em><strong>3</strong></em>,<em><strong>4</strong></em>]\n预期:[<em><strong>1</strong></em>,<em><strong>2</strong></em>,<em><strong>3</strong></em>,<em><strong>4</strong></em>,<em><strong>5</strong></em>]\n所有下标的对应学生高度都不匹配。</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre>\n<strong>输入:</strong>heights = [1,2,3,4,5]\n<strong>输出:</strong>0\n<strong>解释:</strong>\n高度:[1,2,3,4,5]\n预期:[1,2,3,4,5]\n所有下标的对应学生高度都匹配。</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 <= heights.length <= 100</code></li>\n\t<li><code>1 <= heights[i] <= 100</code></li>\n</ul>\n",
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@@ -149,7 +149,7 @@
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"hints": [
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"Build the correct order of heights by sorting another array, then compare the two arrays."
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],
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