1 题目
Given two sorted integer arrays nums1 and nums2, merge nums2into nums1 as one sorted array.
Note:
- The number of elements initialized in nums1 and nums2are m and n respectively.
- You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2.
Example:
Input:
nums1 = [1,2,3,0,0,0], m = 3
nums2 = [2,5,6], n = 3
Output: [1,2,2,3,5,6]
2 标准解
2.1 分析
2.2 代码
class Solution {
public:
void merge(vector<int>& nums1, int m, vector<int>& nums2, int n) {
int i = m - 1, j = n - 1, tar = m + n - 1;
while (j >= 0) {
nums1[tar--] = i >= 0 && nums1[i] > nums2[j] ? nums1[i--] : nums2[j--];
}
}
};