Given two sorted integer arrays A and B, merge B into A as one sorted array.

Note:
You may assume that A has enough space (size that is greater or equal to m +n) to hold additional elements from B. The number of elements initialized in A and B arem and n respectively.

答案

public class Solution {
    public void merge(int A[], int m, int B[], int n) {
        int j=m+n-1;
        m--;
        n--;
        while(m>=0&&n>=0)
        {
            if(A[m]>=B[n])
            {
                A[j--]=A[m--];
            }
            else
            {
                A[j--]=B[n--];
            }
        }
        while(n>=0)
        {
            A[j--]=B[n--];
        }
    }
}