leetcode-problemset/leetcode-cn/originData/remove-k-digits.json

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            "title": "Remove K Digits",
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            "content": "<p>Given string num representing a non-negative integer <code>num</code>, and an integer <code>k</code>, return <em>the smallest possible integer after removing</em> <code>k</code> <em>digits from</em> <code>num</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = &quot;1432219&quot;, k = 3\n<strong>Output:</strong> &quot;1219&quot;\n<strong>Explanation:</strong> Remove the three digits 4, 3, and 2 to form the new number 1219 which is the smallest.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = &quot;10200&quot;, k = 1\n<strong>Output:</strong> &quot;200&quot;\n<strong>Explanation:</strong> Remove the leading 1 and the number is 200. Note that the output must not contain leading zeroes.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = &quot;10&quot;, k = 2\n<strong>Output:</strong> &quot;0&quot;\n<strong>Explanation:</strong> Remove all the digits from the number and it is left with nothing which is 0.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= k &lt;= num.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>num</code> consists of only digits.</li>\n\t<li><code>num</code> does not have any leading zeros except for the zero itself.</li>\n</ul>\n",
            "translatedTitle": "移掉 K 位数字",
            "translatedContent": "<p>给你一个以字符串表示的非负整数 <code>num</code> 和一个整数 <code>k</code> ，移除这个数中的 <code>k</code><em> </em>位数字，使得剩下的数字最小。请你以字符串形式返回这个最小的数字。</p>\n \n\n<p><strong>示例 1 ：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = \"1432219\", k = 3\n<strong>输出：</strong>\"1219\"\n<strong>解释：</strong>移除掉三个数字 4, 3, 和 2 形成一个新的最小的数字 1219 。\n</pre>\n\n<p><strong>示例 2 ：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = \"10200\", k = 1\n<strong>输出：</strong>\"200\"\n<strong>解释：</strong>移掉首位的 1 剩下的数字为 200. 注意输出不能有任何前导零。\n</pre>\n\n<p><strong>示例 3 ：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = \"10\", k = 2\n<strong>输出：</strong>\"0\"\n<strong>解释：</strong>从原数字移除所有的数字，剩余为空就是 0 。\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= k <= num.length <= 10<sup>5</sup></code></li>\n\t<li><code>num</code> 仅由若干位数字（0 - 9）组成</li>\n\t<li>除了 <strong>0</strong> 本身之外，<code>num</code> 不含任何前导零</li>\n</ul>\n",
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