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Python heapq.heappushpop() Method

Last Updated: 15 June 2026

heapq.heappushpop() method inserts a new element into a heap and then removes and returns the smallest element. It performs both operations in a single step while maintain...read more

Python

Data Structures-Heap

Python-DSA

Python heapq.heapreplace() Method

Last Updated: 11 June 2026

heapq.heapreplace() function removes and returns the smallest element from a heap and inserts a new element into the heap in a single operation. This is useful when you ne...read more

Python

Data Structures-Heap

Python-DSA

Python heapq.nsmallest() Method

Last Updated: 11 June 2026

heapq.nsmallest() method returns the n smallest elements from an iterable. It is useful when you need only a few smallest values without sorting the entire collection.Exam...read more

Python

Data Structures-Heap

Python-DSA

Python heapq.nlargest() Method

Last Updated: 11 June 2026

heapq.nlargest() function returns the n largest elements from an iterable. It is useful when you need only the largest values without sorting the entire dataset.Example: T...read more

Python

Data Structures-Heap

Python-DSA

Python heapq.heapify() Method

Last Updated: 23 July 2025

The heapq.heapify() function in Python is used to transform a regular list into a valid min-heap. A min-heap is a binary tree where the smallest element is always at the r...read more

Python

Data Structures-Heap

Python-DSA

Python Data Structures Practice Problems

Last Updated: 23 July 2025

Python Data Structures Practice Problems page covers essential structures, from lists and dictionaries to advanced ones like sets, heaps, and deques. These exercises help ...read more

Types of Heap Data Structure

Last Updated: 23 January 2024

Different types of heap data structures include fundamental types like min heap and max heap, binary heap and many more. In this post, we will look into their characterist...read more

POTD Solutions | 05 Nov’ 23 | Top K Frequent Elements in Array

Last Updated: 23 July 2025

View all POTD SolutionsWelcome to the daily solutions of our PROBLEM OF THE DAY (POTD). We will discuss the entire problem step-by-step and work towards developing an opti...read more

Last Updated: 12 January 2024

We were given N apple trees and M friends. The ith tree has a[i] apples and it takes b[i] units of energy to pluck an apple from this tree. Find the maximum number of appl...read more

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Split Array into Consecutive Subsequences of Size K or more

Last Updated: 18 October 2025

Given an integer array arr[] that is sorted in increasing order and an integer k. Check whether it is possible to split arr[] into one or more subsequences such that both ...read more

Maximum number of pairs of distinct array elements possible by including each element in only one pair

Last Updated: 23 July 2025

Given an array arr[] consisting of N integers, the task is to find the maximum number of pairs of array elements such that each pair has a different element and each array...read more

Difference between Binary Heap, Binomial Heap and Fibonacci Heap

Last Updated: 15 July 2025

Binary Heap:A Binary Heap is a Binary Tree with following properties.It’s a complete binary tree i.e., all levels are completely filled except possibly the last level and ...read more

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DSA

Data Structures-Heap

Find min and max values among all maximum leaf nodes from all possible Binary Max Heap

Last Updated: 23 July 2025

Given a positive integer N, the task is to find the largest and smallest elements, from the maximum leaf nodes of every possible binary max-heap formed by taking the first...read more

Heapq with custom predicate in Python

Last Updated: 23 July 2025

Prerequisite: heapq moduleThe heapq module has several functions that take the list as a parameter and arranges it in a min-heap order. The problem with these functions is...read more

Python

Data Structures-Heap

Python-DSA

Heap and Priority Queue using heapq module in Python

Last Updated: 23 July 2025

Heaps are widely used tree-like data structures in which the parent nodes satisfy any one of the criteria given below.The value of the parent node in each level is less th...read more

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