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  • 旋转数组(189)

    法一:
    class Solution:
        def rotate(self, nums: List[int], k: int) -> None:
            """
            Do not return anything, modify nums in-place instead.
            """
            n = len(nums)
            k %= n
            nums[:] = nums[n-k:]+nums[:n-k]
    法二:
    class Solution:
        def rotate(self, nums: List[int], k: int) -> None:
            """
            Do not return anything, modify nums in-place instead.
            """

          n = len(nums)
          k %= n
          nums[:] = nums[::-1]
          nums[:k] = nums[:k][::-1]
          nums[k:] = nums[k:][::-1]

    法三:

    class Solution:
        def rotate(self, nums: List[int], k: int) -> None:
            """
            Do not return anything, modify nums in-place instead.
            """

          n = len(nums)
          k %= n
          for _ in range(k):
          nums.insert(0, nums.pop())

     
    
    
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  • 原文地址:https://www.cnblogs.com/miaoweiye/p/13424961.html
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