Data Structures and Algorithms Made Easy Stacks
Chapter—4
STACKS «a»
4.1 What is a Stack?
A stack is a simple data structure used for storing data (similar to Linked Lists). In stack, the order in which the data
arrives is important. The pile of pla
Data Structures and Algorithms Made Easy Introduction
Chapter— 1
The objective of this chapter is to explain the importance of analysis of algorithms, their notations, relationships and
solving as many problems as possible. We ﬁrst concentrate
Data Structures and Algorithms Made Easy Priority Queue and Heaps
7.1 What is a Priority Queue?
In some situations we may need to find minimum/maximum element among a collection of elements. Priority Queue
ADT is the one which support these kinds of
Data Structures and Algorithms Made Easy Sorting
By Adaptability
Few sorting algorithms complexity changes based on presortedness [quick sort]: presortedness of the input affects the
running time. Algorithms that take this into account are known to be a
Data Structures and Algorithms Made Easy Queues
5.1 What is a Qieue?
A queue is a data structure used for storing data (similar to Linked Lists and Stacks). In queue, the order in which the
data arrives is important. In general, a queue is a line of peo
Balanced Search Trees
Binary Search Trees
Binary Search Tree
Binary Search Tree
A binary tree is a binary search tree if
each element in the left subtree is smaller than the root,
each element in the right subtree is larger than the root, and
the left and
Heaps and Priority Queues
Heaps
Complete Binary Tree
Complete binary tree
All layers (except lowest) are full.
Lowest layer is lled from left to right.
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Complete Binary Tree Array Representation
1-Based Array
0-Based Array
i
2
2i
i1
2
2i + 1
2i + 1