算法combSort()

梳排序的基本思想:梳排序是在冒泡排序上再做优化的。梳排序是待排序列通过增量分为若干个子序列,然后对子序列进行冒泡排序,然后一步步减少增量,直到增量减到1为止。梳排序的最后一次排序是冒泡排序。
梳排序的增量是根据递减率减小的,递减率的设定影响着梳排序的效率,最有效的递减率为1.3。

j = n, s = 1.3, flag = false;
while j > 0 or flag = true do
   i = 0; j = max{(j / s), 1}; flag = false;
   while i + j <= n do
      if a[i] > a[i + j] then
         交换a[i]和a[i + j];
         flag = true;
      end if
   end while
end while

c语言:

#include <stdio.h>

void combSort(int num[],int n)
{
    int incre = n;
    int i;
    while(incre >= 1)
    {
        incre /= 1.3;
        i = 0;
        while(i + incre < n)
        {
            if(num[i] > num[i + incre])
            {
                int t = num[i];
                num[i] = num[i + incre];
                num[i + incre] = t;
            }
            i++;
        }
    }
}
int main(void)
{
    int n, i, j;
    scanf("%d",n);
    int num[5];
    for(i = 0;i < n;i++)
    {
        scanf("%d",num[i]);
    }
    combSort(num,n);
    for(i = 0;i < n;i++)
    {
        printf("%d ",num[i]);
    }
}

java:

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int []num = new int[n];
        for(int i = 0;i < n;i++)
        {
            num[i] = in.nextInt();
        }
        combSort(num,n);
        for(int i = 0;i < n;i++)
        {
            System.out.print(num[i] + " ");
        }

    }
    public static void combSort(int []num,int n)
    {
        int incre = n;
        while(incre >= 1)
        {
            int i = 0;
            incre /= 1.3;
            while(i + incre < n)
            {
                if(num[i] > num[i + incre])
                {
                    int t = num[i];
                    num[i] = num[i + incre];
                    num[i + incre] = t;
                }
                i++;
            }
        }
    }

}

    原文作者:街头的慢慢
    原文地址: https://www.jianshu.com/p/df8b81f47288
    本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。
点赞