mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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182 lines
22 KiB
JSON
182 lines
22 KiB
JSON
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"title": "Concatenation of Array",
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"content": "<p>Given an integer array <code>nums</code> of length <code>n</code>, you want to create an array <code>ans</code> of length <code>2n</code> where <code>ans[i] == nums[i]</code> and <code>ans[i + n] == nums[i]</code> for <code>0 <= i < n</code> (<strong>0-indexed</strong>).</p>\n\n<p>Specifically, <code>ans</code> is the <strong>concatenation</strong> of two <code>nums</code> arrays.</p>\n\n<p>Return <em>the array </em><code>ans</code>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,2,1]\n<strong>Output:</strong> [1,2,1,1,2,1]\n<strong>Explanation:</strong> The array ans is formed as follows:\n- ans = [nums[0],nums[1],nums[2],nums[0],nums[1],nums[2]]\n- ans = [1,2,1,1,2,1]</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,3,2,1]\n<strong>Output:</strong> [1,3,2,1,1,3,2,1]\n<strong>Explanation:</strong> The array ans is formed as follows:\n- ans = [nums[0],nums[1],nums[2],nums[3],nums[0],nums[1],nums[2],nums[3]]\n- ans = [1,3,2,1,1,3,2,1]\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == nums.length</code></li>\n\t<li><code>1 <= n <= 1000</code></li>\n\t<li><code>1 <= nums[i] <= 1000</code></li>\n</ul>\n",
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"translatedTitle": "数组串联",
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