leetcode-problemset/leetcode-cn/originData/number-of-substrings-containing-all-three-characters.json

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            "title": "Number of Substrings Containing All Three Characters",
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            "content": "<p>Given a string <code>s</code>&nbsp;consisting only of characters <em>a</em>, <em>b</em> and <em>c</em>.</p>\n\n<p>Return the number of substrings containing <b>at least</b>&nbsp;one occurrence of all these characters <em>a</em>, <em>b</em> and <em>c</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;abcabc&quot;\n<strong>Output:</strong> 10\n<strong>Explanation:</strong> The substrings containing&nbsp;at least&nbsp;one occurrence of the characters&nbsp;<em>a</em>,&nbsp;<em>b</em>&nbsp;and&nbsp;<em>c are &quot;</em>abc<em>&quot;, &quot;</em>abca<em>&quot;, &quot;</em>abcab<em>&quot;, &quot;</em>abcabc<em>&quot;, &quot;</em>bca<em>&quot;, &quot;</em>bcab<em>&quot;, &quot;</em>bcabc<em>&quot;, &quot;</em>cab<em>&quot;, &quot;</em>cabc<em>&quot; </em>and<em> &quot;</em>abc<em>&quot; </em>(<strong>again</strong>)<em>. </em>\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;aaacb&quot;\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> The substrings containing&nbsp;at least&nbsp;one occurrence of the characters&nbsp;<em>a</em>,&nbsp;<em>b</em>&nbsp;and&nbsp;<em>c are &quot;</em>aaacb<em>&quot;, &quot;</em>aacb<em>&quot; </em>and<em> &quot;</em>acb<em>&quot;.</em><em> </em>\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;abc&quot;\n<strong>Output:</strong> 1\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>3 &lt;= s.length &lt;= 5 x 10^4</code></li>\n\t<li><code>s</code>&nbsp;only consists of&nbsp;<em>a</em>, <em>b</em> or <em>c&nbsp;</em>characters.</li>\n</ul>\n",
            "translatedTitle": "包含所有三种字符的子字符串数目",
            "translatedContent": "<p>给你一个字符串 <code>s</code>&nbsp;，它只包含三种字符 a, b 和 c 。</p>\n\n<p>请你返回 a，b 和 c 都&nbsp;<strong>至少&nbsp;</strong>出现过一次的子字符串数目。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;abcabc&quot;\n<strong>输出：</strong>10\n<strong>解释：</strong>包含 a，b 和 c 各至少一次的子字符串为<em> &quot;</em>abc<em>&quot;, &quot;</em>abca<em>&quot;, &quot;</em>abcab<em>&quot;, &quot;</em>abcabc<em>&quot;, &quot;</em>bca<em>&quot;, &quot;</em>bcab<em>&quot;, &quot;</em>bcabc<em>&quot;, &quot;</em>cab<em>&quot;, &quot;</em>cabc<em>&quot; </em>和<em> &quot;</em>abc<em>&quot; </em>(<strong>相同</strong><strong>字符串算多次</strong>)<em>。</em>\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;aaacb&quot;\n<strong>输出：</strong>3\n<strong>解释：</strong>包含 a，b 和 c 各至少一次的子字符串为<em> &quot;</em>aaacb<em>&quot;, &quot;</em>aacb<em>&quot; </em>和<em> &quot;</em>acb<em>&quot; 。</em>\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>s = &quot;abc&quot;\n<strong>输出：</strong>1\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>3 &lt;= s.length &lt;= 5 x 10^4</code></li>\n\t<li><code>s</code>&nbsp;只包含字符 a，b 和 c 。</li>\n</ul>\n",
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