8.c

数据结构练习共18道。

#include<stdio.h>
int times=0;

void quicksort(int data[],int low,int high){
	int i,pivot,j;
	if(low<high){
		pivot = data[low];i=low;j=high;

		while(i<j){
			while(i<j&&data[j]>=pivot){times++;j--;}
			if(i<j)data[i++]=data[j];
			while(i<j&&data[i]<=pivot){times++;i++;}
			if(i<j)data[j--]=data[i];
		}
		data[i]=pivot;
		quicksort(data,low,i-1);
		quicksort(data,i+1,high);
	}
}
void main()
{
	int i,low,high;
	int list[9];
	low = 0;high = 9;
	for (i=0;i<10;i++)
	{
		printf("Input num %d:",i);
		scanf("%d",&list[i]);
	}

	printf("\nThe list is:");
	for(i=0;i<10;i++)printf("%d ",list[i]);
	
	quicksort(list,0,9);
	printf("\nThe sorted list is:");
	for(i=0;i<10;i++)printf("%d ",list[i]);
	printf("\nThe compare times is:%d",times);
}