class Solution {

 public:

     void FindNumsAppearOnce(vector<int> data,int* num1,int *num2) {

         int diff=;

         for(int i=; i<data.size(); ++i)

             diff ^= data[i];

         diff &= -diff;

         for(int i=; i<data.size(); ++i)

             if((diff & data[i]) == )    // == 优先级高

                 num1[] ^= data[i];

             else

                 num2[] ^= data[i];

     }

 };