题解 | N阶楼梯上楼问题
N阶楼梯上楼问题
https://www.nowcoder.com/practice/c978e3375b404d598f1808e4f89ac551
def lamp(n): dp = [0] * (n+1) dp[0] = 1 dp[1] = 1 # dp[2] = 2 for i in range(2, n+1): dp[i] = dp[i-1] + dp[i-2] return dp[n] n = int(input()) res = lamp(n) print(res)