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C++ cpp-algorithm-library STL

sort_heap function in C++

The sort_heap( ) is an STL algorithm which sorts a heap within the range specified by start and end. Sorts the elements in the heap range [start, end) into ascending ...
C++ Heap CPP-Library

Heap in C++ STL make_heap(), push_heap(), pop_heap(), sort_heap(), is_heap, is_heap_until()

Heap data structure can be implemented in a range using STL which allows faster input into heap and retrieval of a number always results in the largest number i.e. la...
Python priority-queue priority-queue

Heap queue (or heapq) in Python

Heap data structure is mainly used to represent a priority queue. In Python, it is available using “heapq” module. The property of this data structure i...
Arrays Heap Searching

k largest(or smallest) elements in an array added Min Heap method

Question: Write an efficient program for printing k largest elements in an array. Elements in array can be in any order. For example, if given array is [1, 23, 12, 9...
Heap Sorting 24*7 Innovation Labs

HeapSort

Heap sort is a comparison based sorting technique based on Binary Heap data structure. It is similar to selection sort where we first find the maximum element and pl...
Analysis Heap Heap

Time Complexity of building a heap

Consider the following algorithm for building a Heap of an input array A. BUILD-HEAP(A) heapsize := size(A); for i := floor(heapsize/2) downto 1 ...
Combinatorial Dynamic Programming Heap

Number of ways to form a heap with n distinct integers

Given n, how many distinct Max Heap can be made from n distinct integers? Examples: Input : n = 3 Output : Assume the integers are 1, 2, 3. Then the 2 possible max he...
Heap Sorting Heap Sort

Where is Heap Sort used practically?

Although QuickSort works better in practice, the advantage of HeapSort worst case upper bound of O(nLogn). MergeSort also has upper bound as O(nLogn) and works bette...
Heap Sorting 24*7 Innovation Labs

HeapSort

Heap sort is a comparison based sorting technique based on Binary Heap data structure. It is similar to selection sort where we first find the maximum element and pl...
Arrays Heap Searching

k largest(or smallest) elements in an array added Min Heap method

Question: Write an efficient program for printing k largest elements in an array. Elements in array can be in any order. For example, if given array is [1, 23, 12, 9...

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