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py-lc-climbstairs·python·leetcode

class Solution:
    def climbStairs(self, n):
        a, b = 1, 1
        for _ in range(n):
            a, b = b, a + b
        return a

py-lc-climbstairs·python·leetcode

class Solution:
    def climbStairs(self, n):
        a, b = 1, 1
        for _ in range(n):
            a, b = b, a + b
        return a