leetcode-problemset/leetcode-cn/originData/maximum-difference-between-even-and-odd-frequency-i.json

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            "categoryTitle": "Algorithms",
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            "title": "Maximum Difference Between Even and Odd Frequency I",
            "titleSlug": "maximum-difference-between-even-and-odd-frequency-i",
            "content": "<p>You are given a string <code>s</code> consisting of lowercase English letters. Your task is to find the <strong>maximum</strong> difference between the frequency of <strong>two</strong> characters in the string such that:</p>\n\n<ul>\n\t<li>One of the characters has an <strong>even frequency</strong> in the string.</li>\n\t<li>The other character has an <strong>odd frequency</strong> in the string.</li>\n</ul>\n\n<p>Return the <strong>maximum</strong> difference, calculated as the frequency of the character with an <b>odd</b> frequency <strong>minus</strong> the frequency of the character with an <b>even</b> frequency.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">s = &quot;aaaaabbc&quot;</span></p>\n\n<p><strong>Output:</strong> 3</p>\n\n<p><strong>Explanation:</strong></p>\n\n<ul>\n\t<li>The character <code>&#39;a&#39;</code> has an <strong>odd frequency</strong> of <code><font face=\"monospace\">5</font></code><font face=\"monospace\">,</font> and <code>&#39;b&#39;</code> has an <strong>even frequency</strong> of <code><font face=\"monospace\">2</font></code>.</li>\n\t<li>The maximum difference is <code>5 - 2 = 3</code>.</li>\n</ul>\n</div>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">s = &quot;abcabcab&quot;</span></p>\n\n<p><strong>Output:</strong> 1</p>\n\n<p><strong>Explanation:</strong></p>\n\n<ul>\n\t<li>The character <code>&#39;a&#39;</code> has an <strong>odd frequency</strong> of <code><font face=\"monospace\">3</font></code><font face=\"monospace\">,</font> and <code>&#39;c&#39;</code> has an <strong>even frequency</strong> of <font face=\"monospace\">2</font>.</li>\n\t<li>The maximum difference is <code>3 - 2 = 1</code>.</li>\n</ul>\n</div>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>3 &lt;= s.length &lt;= 100</code></li>\n\t<li><code>s</code> consists only of lowercase English letters.</li>\n\t<li><code>s</code> contains at least one character with an odd frequency and one with an even frequency.</li>\n</ul>\n",
            "translatedTitle": "奇偶频次间的最大差值 I",
            "translatedContent": "<p>给你一个由小写英文字母组成的字符串&nbsp;<code>s</code> 。请你找出字符串中两个字符的出现频次之间的 <strong>最大</strong> 差值，这两个字符需要满足：</p>\n\n<ul>\n\t<li>一个字符在字符串中出现 <strong>偶数次</strong> 。</li>\n\t<li>另一个字符在字符串中出现 <strong>奇数次</strong>&nbsp;。</li>\n</ul>\n\n<p>返回 <strong>最大</strong> 差值，计算方法是出现 <strong>奇数次</strong> 字符的次数 <strong>减去</strong> 出现 <strong>偶数次</strong> 字符的次数。</p>\n\n<p>&nbsp;</p>\n\n<p><b>示例 1：</b></p>\n\n<div class=\"example-block\">\n<p><span class=\"example-io\"><b>输入：</b>s = \"aaaaabbc\"</span></p>\n\n<p><b>输出：</b>3</p>\n\n<p><b>解释：</b></p>\n\n<ul>\n\t<li>字符&nbsp;<code>'a'</code>&nbsp;出现 <strong>奇数次</strong>&nbsp;，次数为&nbsp;<code><font face=\"monospace\">5</font></code><font face=\"monospace\"> ；字符</font>&nbsp;<code>'b'</code>&nbsp;出现 <strong>偶数次</strong> ，次数为&nbsp;<code><font face=\"monospace\">2</font></code>&nbsp;。</li>\n\t<li>最大差值为&nbsp;<code>5 - 2 = 3</code>&nbsp;。</li>\n</ul>\n</div>\n\n<p><b>示例 2：</b></p>\n\n<div class=\"example-block\">\n<p><span class=\"example-io\"><b>输入：</b>s = \"abcabcab\"</span></p>\n\n<p><b>输出：</b>1</p>\n\n<p><b>解释：</b></p>\n\n<ul>\n\t<li>字符&nbsp;<code>'a'</code>&nbsp;出现 <strong>奇数次</strong>&nbsp;，次数为&nbsp;<code><font face=\"monospace\">3</font></code><font face=\"monospace\"> ；字符</font>&nbsp;<code>'c'</code>&nbsp;出现 <strong>偶数次</strong>&nbsp;，次数为&nbsp;<font face=\"monospace\">2 。</font></li>\n\t<li>最大差值为&nbsp;<code>3 - 2 = 1</code> 。</li>\n</ul>\n</div>\n\n<p>&nbsp;</p>\n\n<p><b>提示：</b></p>\n\n<ul>\n\t<li><code>3 &lt;= s.length &lt;= 100</code></li>\n\t<li><code>s</code>&nbsp;仅由小写英文字母组成。</li>\n\t<li><code>s</code>&nbsp;至少由一个出现奇数次的字符和一个出现偶数次的字符组成。</li>\n</ul>\n",
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