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"translatedContent": "<p>给定两个字符串 <code>a</code> 和 <code>b</code>,寻找重复叠加字符串 <code>a</code> 的最小次数,使得字符串 <code>b</code> 成为叠加后的字符串 <code>a</code> 的子串,如果不存在则返回 <code>-1</code>。</p>\n\n<p><strong>注意:</strong>字符串 <code>"abc"</code> 重复叠加 0 次是 <code>""</code>,重复叠加 1 次是 <code>"abc"</code>,重复叠加 2 次是 <code>"abcabc"</code>。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre><strong>输入:</strong>a = "abcd", b = "cdabcdab"\n<strong>输出:</strong>3\n<strong>解释:</strong>a 重复叠加三遍后为 "ab<strong>cdabcdab</strong>cd", 此时 b 是其子串。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre><strong>输入:</strong>a = "a", b = "aa"\n<strong>输出:</strong>2\n</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre><strong>输入:</strong>a = "a", b = "a"\n<strong>输出:</strong>1\n</pre>\n\n<p><strong>示例 4:</strong></p>\n\n<pre><strong>输入:</strong>a = "abc", b = "wxyz"\n<strong>输出:</strong>-1\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 <= a.length <= 10<sup>4</sup></code></li>\n\t<li><code>1 <= b.length <= 10<sup>4</sup></code></li>\n\t<li><code>a</code> 和 <code>b</code> 由小写英文字母组成</li>\n</ul>\n",
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"similarQuestions": "[{\"title\": \"Repeated Substring Pattern\", \"titleSlug\": \"repeated-substring-pattern\", \"difficulty\": \"Easy\", \"translatedTitle\": \"\\u91cd\\u590d\\u7684\\u5b50\\u5b57\\u7b26\\u4e32\"}]",
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