Method merge

Array/MergeSortedArray.py:122–144

:type nums1: List[int] :type m: int :type nums2: List[int] :type n: int :rtype: void Do not return anything, modify nums1 in-place instead.

(self, nums1, m, nums2, n)

    # 第三版
    def merge(self, nums1, m, nums2, n):
        """
        :type nums1: List[int]
        :type m: int
        :type nums2: List[int]
        :type n: int
        :rtype: void Do not return anything, modify nums1 in-place instead.
        """
        mn = m + n - 1
        
        while m > 0 and n > 0:
           
            
            if nums1[m-1] > nums2[n-1]:
                nums1[mn] = nums1[m-1]
                m -= 1
            else:
                nums1[mn] = nums2[n-1]
                n -= 1
            mn -= 1
        
        if n > 0:
            nums1[:n] = nums2[:n]