Median of Two Sorted Arrays

class Solution {
public:
    double findMedianSortedArrays(int A[], int m, int B[], int n) {
        vector<int> v(m+n);
        for(int i=0;i<m;i++)
        {
            v[i]=A[i];
        }
        for(int j=0;j<n;j++)
        {
            v[m+j]=B[j];
        }
        
        sort(v.begin(),v.end());
        
        if((m+n)%2==0)
        {
            return (v[(m+n)/2-1]+v[(m+n)/2])*0.5;
        }
        else
        {
            return v[(m+n)/2];
        }
        
    }
};

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There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)).