What is leftist-heap?

Answer 1

A leftist heap is a type of heap data structure that is a variant of a binary heap. It supports all the standard heap operations (insertion, deletion, and merging) with performance guarantees similar to binary heaps, but it maintains a leftist property that ensures that the left child has a shorter or equal path to the nearest null (empty) node than the right child. This property helps to improve the efficiency of merge operations in leftist heaps compared to binary heaps.