#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param number int整型 
# @return int整型
#
class Solution:
    def jumpFloor(self , number: int) -> int:
        # write code here
        if number==1:
            return 1
        if number==2:
            return 2

        dp = [0]*number
        dp[0], dp[1] = 1, 2
        for i in range(2,number):
            dp[i] = dp[i-1]+dp[i-2]
        
        return dp[-1]