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LeetCode 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.

我们数据结构书上在讲归并排序时,是将数组插入到新的数组中,这个是插到原来的数组中,我们只需要将第二个数组的元素一个一个插进来就好

 

class Solution {public:   void merge(vector<int>& nums1, int m, vector<int>& nums2, int n) {		nums1.resize(m + n);		int nums1_postion = 0, nums2_postion = 0, count_nums2 = 0;		for (;nums1_postion<m + n&&nums2_postion < n;++nums1_postion)		{			if (nums1_postion >= m + count_nums2 || (nums1[nums1_postion] > nums2[nums2_postion]))			{				++count_nums2;				int temp = m+count_nums2-1;				for (;temp > nums1_postion;--temp)				{					nums1[temp] = nums1[temp - 1];				}				nums1[nums1_postion] = nums2[nums2_postion++];			}		}	}};

  

LeetCode 88. Merge Sorted Array