leetcode-problemset/leetcode-cn/originData/pascals-triangle-ii.json

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            "title": "Pascal's Triangle II",
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            "content": "<p>Given an integer <code>rowIndex</code>, return the <code>rowIndex<sup>th</sup></code> (<strong>0-indexed</strong>) row of the <strong>Pascal&#39;s triangle</strong>.</p>\n\n<p>In <strong>Pascal&#39;s triangle</strong>, each number is the sum of the two numbers directly above it as shown:</p>\n<img alt=\"\" src=\"https://upload.wikimedia.org/wikipedia/commons/0/0d/PascalTriangleAnimated2.gif\" style=\"height:240px; width:260px\" />\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<pre><strong>Input:</strong> rowIndex = 3\n<strong>Output:</strong> [1,3,3,1]\n</pre><p><strong class=\"example\">Example 2:</strong></p>\n<pre><strong>Input:</strong> rowIndex = 0\n<strong>Output:</strong> [1]\n</pre><p><strong class=\"example\">Example 3:</strong></p>\n<pre><strong>Input:</strong> rowIndex = 1\n<strong>Output:</strong> [1,1]\n</pre>\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= rowIndex &lt;= 33</code></li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong>Follow up:</strong> Could you optimize your algorithm to use only <code>O(rowIndex)</code> extra space?</p>\n",
            "translatedTitle": "杨辉三角 II",
            "translatedContent": "<p>给定一个非负索引 <code>rowIndex</code>，返回「杨辉三角」的第 <code>rowIndex</code><em> </em>行。</p>\n\n<p><small>在「杨辉三角」中，每个数是它左上方和右上方的数的和。</small></p>\n\n<p><img alt=\"\" src=\"https://pic.leetcode-cn.com/1626927345-DZmfxB-PascalTriangleAnimated2.gif\" /></p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:</strong> rowIndex = 3\n<strong>输出:</strong> [1,3,3,1]\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong> rowIndex = 0\n<strong>输出:</strong> [1]\n</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre>\n<strong>输入:</strong> rowIndex = 1\n<strong>输出:</strong> [1,1]\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>0 <= rowIndex <= 33</code></li>\n</ul>\n\n<p> </p>\n\n<p><strong>进阶：</strong></p>\n\n<p>你可以优化你的算法到 <code><em>O</em>(<i>rowIndex</i>)</code> 空间复杂度吗？</p>\n",
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