leetcode-problemset/leetcode-cn/originData/license-key-formatting.json

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            "questionId": "482",
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            "categoryTitle": "Algorithms",
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            "title": "License Key Formatting",
            "titleSlug": "license-key-formatting",
            "content": "<p>You are given a license key represented as a string <code>s</code> that consists of only alphanumeric characters and dashes. The string is separated into <code>n + 1</code> groups by <code>n</code> dashes. You are also given an integer <code>k</code>.</p>\n\n<p>We want to reformat the string <code>s</code> such that each group contains exactly <code>k</code> characters, except for the first group, which could be shorter than <code>k</code> but still must contain at least one character. Furthermore, there must be a dash inserted between two groups, and you should convert all lowercase letters to uppercase.</p>\n\n<p>Return <em>the reformatted license key</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;5F3Z-2e-9-w&quot;, k = 4\n<strong>Output:</strong> &quot;5F3Z-2E9W&quot;\n<strong>Explanation:</strong> The string s has been split into two parts, each part has 4 characters.\nNote that the two extra dashes are not needed and can be removed.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;2-5g-3-J&quot;, k = 2\n<strong>Output:</strong> &quot;2-5G-3J&quot;\n<strong>Explanation:</strong> The string s has been split into three parts, each part has 2 characters except the first part as it could be shorter as mentioned above.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>s</code> consists of English letters, digits, and dashes <code>&#39;-&#39;</code>.</li>\n\t<li><code>1 &lt;= k &lt;= 10<sup>4</sup></code></li>\n</ul>\n",
            "translatedTitle": "密钥格式化",
            "translatedContent": "<p>给定一个许可密钥字符串 <code>s</code>，仅由字母、数字字符和破折号组成。字符串由 <code>n</code> 个破折号分成 <code>n + 1</code> 组。你也会得到一个整数 <code>k</code> 。</p>\n\n<p>我们想要重新格式化字符串&nbsp;<code>s</code>，使每一组包含 <code>k</code> 个字符，除了第一组，它可以比 <code>k</code> 短，但仍然必须包含至少一个字符。此外，两组之间必须插入破折号，并且应该将所有小写字母转换为大写字母。</p>\n\n<p>返回 <em>重新格式化的许可密钥</em> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>S = \"5F3Z-2e-9-w\", k = 4\n<strong>输出：</strong>\"5F3Z-2E9W\"\n<strong>解释：</strong>字符串 S 被分成了两个部分，每部分 4 个字符；\n&nbsp;    注意，两个额外的破折号需要删掉。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>S = \"2-5g-3-J\", k = 2\n<strong>输出：</strong>\"2-5G-3J\"\n<strong>解释：</strong>字符串 S 被分成了 3 个部分，按照前面的规则描述，第一部分的字符可以少于给定的数量，其余部分皆为 2 个字符。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>s</code>&nbsp;只包含字母、数字和破折号&nbsp;<code>'-'</code>.</li>\n\t<li><code>1 &lt;= k &lt;= 10<sup>4</sup></code></li>\n</ul>\n",
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