Python 3 实现:
源代码已上传 Github,持续更新。
"""
88. Merge Sorted Array
Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.
Note:
You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2. The number of elements initialized in nums1 and nums2 are m and n respectively.
"""
class Solution(object):
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.
"""
# 从后往前比较两个数组的元素
merged = m + n - 1
m = m - 1
n = n - 1
while m >= 0 and n >= 0:
if nums1[m] > nums2[n]:
nums1[merged] = nums1[m]
m -= 1
else:
nums1[merged] = nums2[n]
n -= 1
merged -= 1
if m < 0:
nums1[:n + 1] = nums2[:n + 1]
if __name__ == '__main__':
solution = Solution()
nums1 = [1, 2, 3, 0, 0, 0]
nums2 = [2, 5, 6]
solution.merge(nums1, 3, nums2, 3)
源代码已上传至 Github,持续更新中。