//Memory Time 
//464K   47MS 

#include<iostream>
using namespace std;

void quicksort(int *s, int left, int right)
{
	int i = left, j = right , temp = s[left];
	if (i > j)
	{
		return;
	}
	
	while (i != j)
	{
		while (temp<=s[j]&&j>i)
		{
			j--;
		}
		if (i<j)
		{
			s[i++] = s[j];
		}
		
		while (temp>=s[i]&&j>i)
		{
			i++;
		}
		if (i<j)
		{
			s[j--] = s[i];
		}
	}
	s[i] = temp;
	quicksort(s,left,i-1);
	quicksort(s,i+1,right);
}

int find(int *s, int a)
{
	int left,right,mid;
	left = 0;
	right = 99;
	while (left<=right)
	{
		mid = left + (right - left)/2;

		if (s[mid] < a)
		{
			left = mid + 1;
		}
		else if (s[mid] > a)
		{
			right = mid -1;
		}
		else
		{
			return mid;
		}
		

	}
	return left-1;
}


int main()
{
	int s[100];
	for (int i = 0; i < 100; i++)
	{
		s[i] = rand();
	}

	quicksort(s,0,99);

	for (int i = 0; i < 100; i++)
	{
		cout<<s[i]<<" ";
	}
	cout<<endl;
	for (int i = 0; i < 100; i++)
	{
		cout<<find(s, s[i])<<" ";
	}
	
}

前面输出排序结果，后面输出检索结果，应为0~99