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sort-algorithm
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QuickSort.cpp
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////和归并排序一样,快排也是一种基于分治思想的排序算法,先从数组中取出一个数作为基准数,
////将比这个数大的全放在他的右边,比他小的放在其左边,然后对左右区间重复上个步骤,
////直到各个区间只有一个数
////思想可见:http://blog.csdn.net/morewindows/article/details/6684558
//
//#include<iostream>
//
//using namespace std;
//
//int partition(int s[], int left, int right)//返回调整后基准数的位置
//{
// int i = left, j = right;
// int temp = s[i];
// //经过左右扫描,使得这个基准数的...
// while (i < j)
// {
// while (i < j && s[j] >= temp)//从右向左扫描找到小于temp的值来放入s[i]中
// j--;
// if (i < j)
// s[i++] = s[j];
//
// while (i < j && s[i] < temp)//从左向右扫描找到小于temp的值放入上一个s[j]中
// i++;
// if (i < j)
// s[j--] = s[i];
//
// }
//
// s[i] = temp;
// return i;
//}
//
//void QuickSort(int a[], int lo,int hi)
//{
// if (hi <= lo)
// return;
// int j = partition(a, lo, hi);
// QuickSort(a, lo, j-1);
// QuickSort(a, j + 1, hi);
//}
//
//int main()
//{
// int a[] = { 45,2,7,1,34,90 };
// QuickSort(a, 0, 5);
//
// for (auto i : a)
// cout << i << " ";
// cout << endl;
//
// return 0;
//}
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