题解 | #跳台阶扩展问题#
跳台阶扩展问题
http://www.nowcoder.com/practice/22243d016f6b47f2a6928b4313c85387
同普通青蛙跳一样用归纳法
# -*- coding:utf-8 -*- class Solution: def jumpFloorII(self, number): # write code here if number <= 0: return 0 elif number ==1: return 1 elif number == 2: return 2 else: result = 2**(number-1) return result