Heap Sort is a sorting algorithm based on the binary heap data structure in which first we have to find the maximum element from the array, and then it will be replaced by the end element. Then, we will perform heapify on our heap, for maintaining the heap property. We will follow thes...
=i:arr[i],arr[largest]=arr[largest],arr[i]heapify(arr,n,largest)defheap_sort(arr):n=len(arr)foriinrange(n// 2 - 1, -1, -1):heapify(arr,n,i)foriinrange(n-1,0,-1):arr[i],arr[0]=arr[0],arr[i]heapify(arr,i,0)# 测试排序 arr=[9,6,5,2,8]heap_sort(arr)print("...
[child] root = child else: break def heap_sort(arr:List[int]): n = len(arr) first_root = n // 2 - 1 # 确认最深最后的那个根节点的位置 for root in range(first_root, -1, -1): # 由后向前遍历所有的根节点,建堆并进行调整 build(arr, root, n - 1) for end in range(n - ...
heapify(arr, n, largest) def heapSort(arr): n = len(arr) # 构建大顶堆 for i in range(n, -1, -1): heapify(arr, n, i) for i in range(n - 1, 0, -1): # 一个个交换元素 arr[i], arr[0] = arr[0], arr[i] # 交换 heapify(arr, i, 0) return arr 1. 2. 3. 4....
Python 堆排序 Python3 实例 堆排序(Heapsort)是指利用堆这种数据结构所设计的一种排序算法。堆积是一个近似完全二叉树的结构,并同时满足堆积的性质:即子结点的键值或索引总是小于(或者大于)它的父节点。堆排序可以说是一种利用堆的概念来排序的选择排序。 实
lst[0],lst[i] heap_sort_helper(lst,0,i-1) if __name__ == "__main__": lst = [random.randint(0,20) for i in range(10)] lst2 = copy.deepcopy(lst) lst2.sort() print(lst) print(lst2) heap_sort(lst) print(lst) 测试...
[i]56i = max_child_index#被比较后,需要判断是否需要调整57else:58break5960#构建大顶推,大根堆61defmax_heap(total,array:list):62foriinrange(total//2,0,-1):63heap_adjust(total,i,array)64returnarray6566print_tree(max_heap(total,origin))67print_tree("="* 50)6869#排序70defsort(total,...
l.sort() print(l) 18. What is compile time and runtime error? Do they exist in Python? Compile time error and runtime error are the two errors that happen in Python at different stages of execution of the program. Point of Difference Compile Time Error Runtime Error Definition Mistakes ...
// Heap sort for (int i = n - 1; i >= 0; i--) { swap(&arr[0], &arr[i]); // Heapify root element to get highest element at root again heapify(arr, i, 0); } Heap Sort Code in Python, Java, and C/C++ Python Java C C++ # Heap Sort in python def heapify(arr, n,...
Write a Python program to sort a given list of elements in ascending order using the heap queue algorithm. Sample Solution: Python Code: importheapqashq nums_list=[18,14,10,9,8,7,9,3,2,4,1]print("Original list:")print(nums_list)hq.heapify(nums_list)s_result=[hq.heappop(nums_list...