Sword To Offer 040 - 数组中只出现一次的数字

class Solution {
public:
    void FindNumsAppearOnce(const vector<int>& data, int* num1, int* num2) {
        int andNumber = 0;
        for(auto number : data) {
            andNumber ^= number;
        }
        int index = 0;
        while(andNumber ^ 1) {
            andNumber >>= 1;
            index++;
        }
        vector<int> partA;
        vector<int> partB;
        for(auto number : data) {
            if((number >> index) & 1) {
                partA.emplace_back(number);
            } else {
                partB.emplace_back(number);
            }
        }
        andNumber = 0;
        for(auto number : partA) {
            andNumber ^= number;
        }
        *num1 = andNumber;
        andNumber = 0;
        for(auto number : partB) {
            andNumber ^= number;
        }
        *num2 = andNumber;
    }
};