/**

 * 归并排序--分治法

 * */

public class Four {    public static void one(int[] arrA,int[] arrB,int[] arrC) {        int i=0,j=0,k=0;                while(i
     
       arrB[j] ) {                arrC[k++] = arrB[j++];            }else {                arrC[k++] = arrA[i++];            }        }        while(i