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.

分析: 注意理解题目 从num1中取前m个 从num2中取前n个 然后放入num1中 O(N)的复杂度即可

class Solution {
public:
    void merge(vector<int>& nums1, int m, vector<int>& nums2, int n) {
        int i=0;
        int j=0;
        for(; j<n;j++){
            for(; i<m+j;i++){
                if(nums2[j]<nums1[i])
                    break;
            }
            if(i<m+j){
                nums1.insert(nums1.begin()+i,nums2[j]);
                nums1.pop_back();
            }
            else
                break;
        }

        while(j<n){
            nums1.insert(nums1.begin()+m+j-1,nums2[j++]);
            nums1.pop_back();
        }

    }
};
时间: 2024-10-07 10:58:44

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