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leetcode-cn/originData/letter-combinations-of-a-phone-number.json

@@ -12,7 +12,7 @@
             "translatedContent": "<p>给定一个仅包含数字&nbsp;<code>2-9</code>&nbsp;的字符串，返回所有它能表示的字母组合。答案可以按 <strong>任意顺序</strong> 返回。</p>\n\n<p>给出数字到字母的映射如下（与电话按键相同）。注意 1 不对应任何字母。</p>\n\n<p><img src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2021/11/09/200px-telephone-keypad2svg.png\" style=\"width: 200px;\" /></p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>digits = \"23\"\n<strong>输出：</strong>[\"ad\",\"ae\",\"af\",\"bd\",\"be\",\"bf\",\"cd\",\"ce\",\"cf\"]\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>digits = \"\"\n<strong>输出：</strong>[]\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>digits = \"2\"\n<strong>输出：</strong>[\"a\",\"b\",\"c\"]\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= digits.length &lt;= 4</code></li>\n\t<li><code>digits[i]</code> 是范围 <code>['2', '9']</code> 的一个数字。</li>\n</ul>\n",
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