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sejineer
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climbing-stairs solution
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climbing-stairs/sejineer.py

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"""
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시간 복잡도: O(N)
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공간 복잡도: O(N)
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"""
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class Solution:
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def climbStairs(self, n: int) -> int:
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dp = [0] * 46
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dp[1], dp[2] = 1, 2
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for i in range(3, n + 1):
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dp[i] = dp[i - 1] + dp[i - 2]
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return dp[n]

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