数据结构几大排序（二）——折半排序

Java

/**
 * @author LiuZhiguo
 * @date 2019/10/14 9:55
 */
public class BinaryInsertionSort {
    public void binaryInsertionSort(int[] R, int n){
        for (int i=1;i=low){
                mid = (low+high)>>1;
                if (temp < R[mid])
                    high = mid -1;
                else low = mid+1;
            }
            if (i>high) {
                for (int j=i-1;j>=low;j--){
                    R[j+1] = R[j];
                }
            }
            R[low] = temp;
        }
    }
    public static void main(String[] args){
        BinaryInsertionSort binaryInsertionSort = new BinaryInsertionSort();
        int[] R = {49,38,65,97,76,13,27,49};
        binaryInsertionSort.binaryInsertionSort(R, R.length);
        for (int i=0;i

Python

class BinaryInsertSort:
    def binaryInsertSort(self, nums):
        n = len(nums)
        for i in range(1, n):
            low = 0
            high = i-1
            temp = nums[i]
            while low <= high:
                mid = (low + high) >> 1
                if nums[mid] > temp:
                    high = mid-1
                else:
                    low = mid +1
            if i > high: #high 发生了改变，需要交换位置
                for j in range(i-1, low-1, -1):
                    nums[j+1] = nums[j]
            nums[low] = temp
if __name__ =='__main__':
    test = BinaryInsertSort()
    nums = [49, 38, 65, 97, 76, 13, 27, 49]
    test.binaryInsertSort(nums)
    print(nums)