随笔分类 -  递推和递归

摘要：K-based NumbersTime Limit: 1000MS Memory limit: 65536K题目描述Let’s consider K-based numbers, containing exactly N digits. We define a number to be valid if its K-based notation doesn’t contain two successive zeros. For example: (1)1010230 is a valid 7-digit number; (2)1000198 is not a valid number; (3) 阅读全文