题目描述
<h3> <span style="font-family:'Times New Roman','serif';font-size:24px;">abcde/fghij=n,</span><span style="font-family:宋体;font-size:24px;">其中</span><span style="font-family:'Times New Roman','serif';font-size:24px;">a~j</span><span style="font-family:宋体;font-size:24px;">为数字</span><span style="font-family:'Times New Roman','serif';font-size:24px;">0~9</span><span style="font-family:宋体;font-size:24px;">的不重复的排列</span><span style="font-family:'Times New Roman','serif';font-size:24px;">，这里的除为整除，请</span><span style="font-family:宋体;font-size:24px;">统计这样的组合一共有多少个？</span> </h3>
输入格式
<p> 无 </p>
输出格式
<p> <span style="font-family:'Times New Roman','serif';font-size:24px;">直接显示数据个数，不要画蛇添足。</span> </p>
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