排序算法（三）二分查找插入排序

package com.algorithm.sort;
 
 public class BinaryInsertSort {
 
 	/**
 	 * 使用二分查找法  进行插入排序
 	 * 时间复杂度为：n*lgn
 	 * @param args
 	 */
 	public static void main(String[] args) {
 		int[] sourceArray = {100, 22,42,12,73,24,15,31,27,48,9};
 		BinaryInsertSort bis = new BinaryInsertSort();
 		int[] targetArray = bis.sort(sourceArray);
 		for (int i = 0; i < targetArray.length; i++) {
 			int j = targetArray[i];
 			System.out.println(j);
 		}
 	}
 	
 	private int[] sort(int [] sourceArray){
 		for (int i = 1; i < sourceArray.length; i++) {
 			System.out.println("==================================" + i);
 			sort(sourceArray, i, 0, i-1);//将位置i的数据插入到数据  0~i-1位中
 		}
 		return sourceArray;
 	}
 	
 	/**
 	 * 将sourceArray中第i个元素插到正确0~i-1中的某个位置
 	 */
 	private void sort(int[] sourceArray, int i, int low, int high){
 		if(sourceArray[high] > sourceArray[i]){//如果第i-1位大于第i位，则需要进行查找
 			int temp = sourceArray[i];
 			while(low <= high && high > 0){
 				int middle = (low + high)/2;
 				if(sourceArray[middle] > temp){
 					high = middle - 1;
 				}else{
 					low = middle + 1;
 				}
 			}
 			for (int j = i; j > low; j--) {
 				sourceArray[j] = sourceArray[j-1];
 			}
 			sourceArray[low] = temp;
 		}
 	}
 }