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CS学生在逻辑课上苦苦挣扎。这个问题让我一头雾水
归纳定义字符串集
找到以下字符串集的归纳定义:
S = {apbcr | p 是自然数,r 是大于 0 的自然数} * p 和 r 是上标*
我建议以下定义: