leetcode-problemset/leetcode-cn/originData/increasing-decreasing-string.json

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            "title": "Increasing Decreasing String",
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            "content": "<p>You are given a string <code>s</code>. Reorder the string using the following algorithm:</p>\n\n<ol>\n\t<li>Pick the <strong>smallest</strong> character from <code>s</code> and <strong>append</strong> it to the result.</li>\n\t<li>Pick the <strong>smallest</strong> character from <code>s</code> which is greater than the last appended character to the result and <strong>append</strong> it.</li>\n\t<li>Repeat step 2 until you cannot pick more characters.</li>\n\t<li>Pick the <strong>largest</strong> character from <code>s</code> and <strong>append</strong> it to the result.</li>\n\t<li>Pick the <strong>largest</strong> character from <code>s</code> which is smaller than the last appended character to the result and <strong>append</strong> it.</li>\n\t<li>Repeat step 5 until you cannot pick more characters.</li>\n\t<li>Repeat the steps from 1 to 6 until you pick all characters from <code>s</code>.</li>\n</ol>\n\n<p>In each step, If the smallest or the largest character appears more than once you can choose any occurrence and append it to the result.</p>\n\n<p>Return <em>the result string after sorting </em><code>s</code><em> with this algorithm</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;aaaabbbbcccc&quot;\n<strong>Output:</strong> &quot;abccbaabccba&quot;\n<strong>Explanation:</strong> After steps 1, 2 and 3 of the first iteration, result = &quot;abc&quot;\nAfter steps 4, 5 and 6 of the first iteration, result = &quot;abccba&quot;\nFirst iteration is done. Now s = &quot;aabbcc&quot; and we go back to step 1\nAfter steps 1, 2 and 3 of the second iteration, result = &quot;abccbaabc&quot;\nAfter steps 4, 5 and 6 of the second iteration, result = &quot;abccbaabccba&quot;\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;rat&quot;\n<strong>Output:</strong> &quot;art&quot;\n<strong>Explanation:</strong> The word &quot;rat&quot; becomes &quot;art&quot; after re-ordering it with the mentioned algorithm.\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;= 500</code></li>\n\t<li><code>s</code> consists of only lowercase English letters.</li>\n</ul>\n",
            "translatedTitle": "上升下降字符串",
            "translatedContent": "<p>给你一个字符串&nbsp;<code>s</code>&nbsp;，请你根据下面的算法重新构造字符串：</p>\n\n<ol>\n\t<li>从 <code>s</code>&nbsp;中选出 <strong>最小</strong>&nbsp;的字符，将它 <strong>接在</strong>&nbsp;结果字符串的后面。</li>\n\t<li>从 <code>s</code>&nbsp;剩余字符中选出&nbsp;<strong>最小</strong>&nbsp;的字符，且该字符比上一个添加的字符大，将它 <strong>接在</strong>&nbsp;结果字符串后面。</li>\n\t<li>重复步骤 2 ，直到你没法从 <code>s</code>&nbsp;中选择字符。</li>\n\t<li>从 <code>s</code>&nbsp;中选出 <strong>最大</strong>&nbsp;的字符，将它 <strong>接在</strong>&nbsp;结果字符串的后面。</li>\n\t<li>从 <code>s</code>&nbsp;剩余字符中选出&nbsp;<strong>最大</strong>&nbsp;的字符，且该字符比上一个添加的字符小，将它 <strong>接在</strong>&nbsp;结果字符串后面。</li>\n\t<li>重复步骤 5&nbsp;，直到你没法从 <code>s</code>&nbsp;中选择字符。</li>\n\t<li>重复步骤 1 到 6 ，直到 <code>s</code>&nbsp;中所有字符都已经被选过。</li>\n</ol>\n\n<p>在任何一步中，如果最小或者最大字符不止一个&nbsp;，你可以选择其中任意一个，并将其添加到结果字符串。</p>\n\n<p>请你返回将&nbsp;<code>s</code>&nbsp;中字符重新排序后的 <strong>结果字符串</strong> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;aaaabbbbcccc&quot;\n<strong>输出：</strong>&quot;abccbaabccba&quot;\n<strong>解释：</strong>第一轮的步骤 1，2，3 后，结果字符串为 result = &quot;abc&quot;\n第一轮的步骤 4，5，6 后，结果字符串为 result = &quot;abccba&quot;\n第一轮结束，现在 s = &quot;aabbcc&quot; ，我们再次回到步骤 1\n第二轮的步骤 1，2，3 后，结果字符串为 result = &quot;abccbaabc&quot;\n第二轮的步骤 4，5，6 后，结果字符串为 result = &quot;abccbaabccba&quot;\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;rat&quot;\n<strong>输出：</strong>&quot;art&quot;\n<strong>解释：</strong>单词 &quot;rat&quot; 在上述算法重排序以后变成 &quot;art&quot;\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;leetcode&quot;\n<strong>输出：</strong>&quot;cdelotee&quot;\n</pre>\n\n<p><strong>示例 4：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;ggggggg&quot;\n<strong>输出：</strong>&quot;ggggggg&quot;\n</pre>\n\n<p><strong>示例 5：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;spo&quot;\n<strong>输出：</strong>&quot;ops&quot;\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;= 500</code></li>\n\t<li><code>s</code>&nbsp;只包含小写英文字母。</li>\n</ul>\n",
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