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            "questionId": "1610",
            "questionFrontendId": "1486",
            "categoryTitle": "Algorithms",
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            "title": "XOR Operation in an Array",
            "titleSlug": "xor-operation-in-an-array",
            "content": "<p>You are given an integer <code>n</code> and an integer <code>start</code>.</p>\n\n<p>Define an array <code>nums</code> where <code>nums[i] = start + 2 * i</code> (<strong>0-indexed</strong>) and <code>n == nums.length</code>.</p>\n\n<p>Return <em>the bitwise XOR of all elements of</em> <code>nums</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 5, start = 0\n<strong>Output:</strong> 8\n<strong>Explanation:</strong> Array nums is equal to [0, 2, 4, 6, 8] where (0 ^ 2 ^ 4 ^ 6 ^ 8) = 8.\nWhere &quot;^&quot; corresponds to bitwise XOR operator.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 4, start = 3\n<strong>Output:</strong> 8\n<strong>Explanation:</strong> Array nums is equal to [3, 5, 7, 9] where (3 ^ 5 ^ 7 ^ 9) = 8.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n &lt;= 1000</code></li>\n\t<li><code>0 &lt;= start &lt;= 1000</code></li>\n\t<li><code>n == nums.length</code></li>\n</ul>\n",
            "translatedTitle": "数组异或操作",
            "translatedContent": "<p>给你两个整数，<code>n</code> 和 <code>start</code> 。</p>\n\n<p>数组 <code>nums</code> 定义为：<code>nums[i] = start + 2*i</code>（下标从 0 开始）且 <code>n == nums.length</code> 。</p>\n\n<p>请返回 <code>nums</code> 中所有元素按位异或（<strong>XOR</strong>）后得到的结果。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><strong>输入：</strong>n = 5, start = 0\n<strong>输出：</strong>8\n<strong>解释：</strong>数组 nums 为 [0, 2, 4, 6, 8]，其中 (0 ^ 2 ^ 4 ^ 6 ^ 8) = 8 。\n     &quot;^&quot; 为按位异或 XOR 运算符。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><strong>输入：</strong>n = 4, start = 3\n<strong>输出：</strong>8\n<strong>解释：</strong>数组 nums 为 [3, 5, 7, 9]，其中 (3 ^ 5 ^ 7 ^ 9) = 8.</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>n = 1, start = 7\n<strong>输出：</strong>7\n</pre>\n\n<p><strong>示例 4：</strong></p>\n\n<pre><strong>输入：</strong>n = 10, start = 5\n<strong>输出：</strong>2\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n &lt;= 1000</code></li>\n\t<li><code>0 &lt;= start &lt;= 1000</code></li>\n\t<li><code>n == nums.length</code></li>\n</ul>\n",
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            "style": "LEETCODE",
            "exampleTestcases": "5\n0\n4\n3",
            "__typename": "QuestionNode"
        }
    }
}