分区函数 partition function ## partition function: 归位函数,把最左边的数字当成分界数字,比它小的放左边,比它大的放右边 def ptn(lis, left, right): tmp = lis[left] while left < right: while left < right and lis[right] >= tmp: ## 不动那些大的. 必须加上等于号! right = right - 1 ...
} function quickSort(array, p, q) { if(p > q || p < 0 || q < 0 || q > array.length-1) return; if(p==q) // 递归终止条件 return; var mid = partition(array, p, q); quickSort(array, p, mid-1); quickSort(array, mid+1, q); } var array = [4, 2, 1, 3, 6,...
functionquickSort(a,left,right){if(left==right)return; let key=partition(a,left,right);//选出key下标if(left<key){ quickSort(a,left,key-1);//对key的左半部分排序}if(key<right){ quickSort(a,key+1,right)//对key的右半部份排序} }functionpartition(a,left,right){ let key=a[left];/...
quicksort 两种partition方法 quicksort 随机选取一个轴点,将数组分为比pivot小和比pivot大的部分,对两部分递归进行排序 快速排序算法是不稳定的排序算法 比如5,5,3 在第一种填坑法中,两个5将会调换顺序 vector<int>& quicksort(vector<int>& arr, int lo, int hi)//左闭右开区间 { if(lo+1>=hi) ret...
quicksort 两种partition方法 traver20 1 人赞同了该文章 quicksort 随机选取一个轴点,将数组分为比pivot小和比pivot大的部分,对两部分递归进行排序 快速排序算法是不稳定的排序算法 比如5,5,3 在第一种填坑法中,两个5将会调换顺序vector<int>& quicksort(vector<int>& arr, int lo, int hi)//左...
最后分别交换左右部分的相等值(left和iflag对应交换,right和rflag对应交换),由于需要返回两个标记值,所以将partition和quicksort合并成一个方法。 算法代码: void quickSort_3(int *array, int l, int r) { /** * 由于三路划分中有可能有两个不同的划分点,所以不能...
In our previous work we introduced Partition sort and found it to be more robust compared to the Quick sort in average case. This paper does a more comprehensive comparative study of the relative performance of these two algorithms with focus on parameterized complexity analysis. The empirical ...
A parallel partition for enhanced parallel quicksort - Francis, Pannan - 1992 () Citation Context ...onic sort [5] based PSRS [30, 21] parallel merge sort [9, 10] smoothsort [24] Nassimi and Sahni's sort [22] column sort [18] Tridgell and Brent's sort [32] snakesort [6] ...
1.sort numpy.sort(a, axis=1, kind='quicksort', order=None) a :所需排序的数组 axis:数组排序时的基准,axis=0按行排列;axis=1按列排列 kind:数组排序时使用的方法,其中: kind=′quicksort′为快排;kind=′mergesort′为混排;kind=′heapsort′为堆排; ...
The signature of the predicate function should be equivalent to the following: bool pred(const Type &a); The signature does not need to have const &, but the function must not modify the objects passed to it. The type Type must be such that an object of type ForwardIt can be ...