GFG Two numbers with odd occurrences

class Solution{
    public:
    vector<long long int> twoOddNum(long long int arr[], long long int n)  
    {
        long long int xor1 = 0, x1=0, x2=0;

        for(int i=0; i<n; i++){

            xor1 ^= arr[i];

        }

        long long sn = xor1 & ~(xor1-1);

        for(int i=0; i<n; i++){

            if((arr[i]&sn) != 0)

            x1 ^= arr[i];

            else

            x2 ^= arr[i];

        }

        vector<long long> v;

        v.emplace_back(max(x1,x2));

        v.emplace_back(min(x1,x2));

        return v;
    }
};