[LintCode]Sort Integers(C++)

class Solution {public:    /**     * @param A an integer array     * @return void     */    void sortIntegers(vector<int>& A) {        // Write your code here        int length = A.size();        int temp;        if(length == 0) return;        for (int i = 0; i < length - 1; i++)            for (int j = i + 1; j < length; j++)                if (A[i] > A[j]) {                    temp = A[i];                    A[i] = A[j];                    A[j] = temp;                }        return;    }};