update

leetcode-cn/originData/decode-xored-array.json

@@ -12,7 +12,7 @@
             "translatedContent": "<p><strong>未知</strong> 整数数组 <code>arr</code> 由 <code>n</code> 个非负整数组成。</p>\n\n<p>经编码后变为长度为 <code>n - 1</code> 的另一个整数数组 <code>encoded</code> ，其中 <code>encoded[i] = arr[i] XOR arr[i + 1]</code> 。例如，<code>arr = [1,0,2,1]</code> 经编码后得到 <code>encoded = [1,2,3]</code> 。</p>\n\n<p>给你编码后的数组 <code>encoded</code> 和原数组 <code>arr</code> 的第一个元素 <code>first</code>（<code>arr[0]</code>）。</p>\n\n<p>请解码返回原数组 <code>arr</code> 。可以证明答案存在并且是唯一的。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>encoded = [1,2,3], first = 1\n<strong>输出：</strong>[1,0,2,1]\n<strong>解释：</strong>若 arr = [1,0,2,1] ，那么 first = 1 且 encoded = [1 XOR 0, 0 XOR 2, 2 XOR 1] = [1,2,3]\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>encoded = [6,2,7,3], first = 4\n<strong>输出：</strong>[4,2,0,7,4]\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>2 <= n <= 10<sup>4</sup></code></li>\n\t<li><code>encoded.length == n - 1</code></li>\n\t<li><code>0 <= encoded[i] <= 10<sup>5</sup></code></li>\n\t<li><code>0 <= first <= 10<sup>5</sup></code></li>\n</ul>\n",
             "isPaidOnly": false,
             "difficulty": "Easy",
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@@ -143,7 +143,7 @@
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             "hints": [
                 "Since that encoded[i] = arr[i] XOR arr[i+1], then arr[i+1] = encoded[i] XOR arr[i].",
                 "Iterate on i from beginning to end, and set arr[i+1] = encoded[i] XOR arr[i]."