leetcode-problemset/leetcode-cn/originData/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof.json

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            "questionFrontendId": "LCR 162",
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            "title": "数字 1 的个数",
            "titleSlug": "1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof",
            "content": "English description is not available for the problem. Please switch to Chinese.",
            "translatedTitle": "数字 1 的个数",
            "translatedContent": "<p>给定一个整数 <code>num</code>，计算所有小于等于 <code>num</code> 的非负整数中数字 <code>1</code> 出现的个数。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = 0\n<strong>输出：</strong>0\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = 13\n<strong>输出：</strong>6</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= num &lt; 10<sup>9</sup></code></li>\n</ul>\n\n<p>注意：本题与主站 233 题相同：<a href=\"https://leetcode-cn.com/problems/number-of-digit-one/\">https://leetcode-cn.com/problems/number-of-digit-one/</a></p>\n\n<p>&nbsp;</p>\n",
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