��符串的个数</div>
<div>接下来每行一个字符串</div>
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<p></p></div></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">输出格式</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><div class=content><div>一个整数，表示有多少不同的&ldquo;好&rdquo;的字符串</div>
<div></div>
<p></p></div></div></div></div></div><div class="row"><div class="column"><h4 clas