problem solving in data structures and algorithms using c#

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Problem Solving in Data Structures & Algorithms Using C#: Programming Interview Guide

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Problem Solving in Data Structures & Algorithms Using C#: Programming Interview Guide First Edition

  • ISBN-10 1540407306
  • ISBN-13 978-1540407306
  • Edition First Edition
  • Publication date November 14, 2016
  • Language English
  • Dimensions 8.5 x 1.07 x 11 inches
  • Print length 475 pages
  • See all details

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Product details

  • Publisher ‏ : ‎ CreateSpace Independent Publishing Platform; First Edition (November 14, 2016)
  • Language ‏ : ‎ English
  • Paperback ‏ : ‎ 475 pages
  • ISBN-10 ‏ : ‎ 1540407306
  • ISBN-13 ‏ : ‎ 978-1540407306
  • Item Weight ‏ : ‎ 2.74 pounds
  • Dimensions ‏ : ‎ 8.5 x 1.07 x 11 inches

About the author

Hemant jain.

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  • ISBN-10 1540407306
  • ISBN-13 978-1540407306
  • Publication date 14 November 2016
  • Language English
  • Dimensions 21.59 x 2.72 x 27.94 cm
  • Print length 467 pages
  • See all details

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Problem Solving in Data Structures & Algorithms Using C

Product details

  • Publisher ‏ : ‎ Createspace Independent Pub (14 November 2016)
  • Language ‏ : ‎ English
  • Paperback ‏ : ‎ 467 pages
  • ISBN-10 ‏ : ‎ 1540407306
  • ISBN-13 ‏ : ‎ 978-1540407306
  • Item Weight ‏ : ‎ 1 kg 240 g
  • Dimensions ‏ : ‎ 21.59 x 2.72 x 27.94 cm

About the author

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C# Data Structures and Algorithms - Second Edition

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Book description

Write sophisticated C# code with this complete guide to using diverse data structures and algorithms, featuring ready-to-use code snippets, detailed explanations, and illustrations

Key Features

  • Master lists, stacks, queues, dictionaries, sets, and trees, among other data structures
  • Delve into effective design and implementation techniques to meet your software requirements
  • Visualize data structures and algorithms through illustrations for a clearer understanding of their analysis
  • Purchase of the print or Kindle book includes a free PDF eBook

Book Description

Building your own applications is exciting but challenging, especially when tackling complex problems tied to advanced data structures and algorithms. This endeavor demands profound knowledge of the programming language as well as data structures and algorithms – precisely what this book offers to C# developers.

Starting with an introduction to algorithms, this book gradually immerses you in the world of arrays, lists, stacks, queues, dictionaries, and sets. Real-world examples, enriched with code snippets and illustrations, provide a practical understanding of these concepts. You’ll also learn how to sort arrays using various algorithms, setting a solid foundation for your programming expertise. As you progress through the book, you’ll venture into more complex data structures – trees and graphs – and discover algorithms for tasks such as determining the shortest path in a graph before advancing to see various algorithms in action, such as solving Sudoku.

By the end of the book, you’ll have learned how to use the C# language to build algorithmic components that are not only easy to understand and debug but also seamlessly applicable in various applications, spanning web and mobile platforms.

What you will learn

  • Understand the fundamentals of algorithms and their classification
  • Store data using arrays and lists, and explore various ways to sort arrays
  • Build enhanced applications with stacks, queues, hashtables, dictionaries, and sets
  • Create efficient applications with tree-related algorithms, such as for searching in a binary search tree
  • Boost solution efficiency with graphs, including finding the shortest path in the graph
  • Implement algorithms solving Tower of Hanoi and Sudoku games, generating fractals, and even guessing the title of this book
  • Who this book is for

This book is for developers looking to learn data structures and algorithms in C#. While basic programming skills and C# knowledge is useful, beginners will find value in the provided code snippets, illustrations, and detailed explanations, enhancing their programming skills. Advanced developers can use this book as a valuable resource for reusable code snippets, instead of writing algorithms from scratch each time.

Table of contents

  • C# Data Structures and Algorithms
  • Contributors
  • About the author
  • About the reviewer
  • What this book covers
  • To get the most out of this book
  • Download the example code files
  • Conventions used
  • Get in touch
  • Share Your Thoughts
  • Download a free PDF copy of this book
  • C# as a programming language
  • .NET-based console applications
  • Division of data types
  • Integral numbers
  • Floating-point numbers
  • Boolean values
  • Unicode characters
  • Enumerations
  • Value tuples
  • User-defined structs
  • Nullable value types
  • Nullable reference types
  • Real-world examples
  • Natural language
  • Programming language
  • Recursive algorithms
  • Divide and conquer algorithms
  • Back-tracking algorithms
  • Greedy algorithms
  • Heuristic algorithms
  • Dynamic programming
  • Brute-force algorithms
  • Time complexity
  • Space complexity
  • Example – month names
  • Example – multiplication table
  • Example – game map
  • Example – yearly transport plan
  • Selection sort
  • Insertion sort
  • Bubble sort
  • Performance analysis
  • Array lists
  • Generic lists
  • Example – address book
  • Singly linked lists
  • Doubly linked lists
  • Circular singly linked lists
  • Circular doubly linked lists
  • List-related interfaces
  • Example – reversing a word
  • Example – Tower of Hanoi
  • Example – call center with a single consultant
  • Example – call center with many consultants
  • Example – call center with priority support
  • Example – gravity roller coaster
  • Example – phone book
  • Example – product location
  • Example – user details
  • Example – encyclopedia
  • Example – coupons
  • Example – swimming pools
  • Example – removing duplicates
  • Implementation
  • Example – hierarchy of identifiers
  • Example – company structure
  • Example – simple quiz
  • Example – BST visualization
  • Red-black trees
  • Example – autocomplete
  • The concept of graphs
  • Applications
  • Adjacency list
  • Adjacency matrix
  • Example – undirected and unweighted edges
  • Example – directed and weighted edges
  • Depth-first search
  • Breadth-first search
  • Kruskal’s algorithm
  • Prim’s algorithm
  • Example – telecommunication cable
  • Example – voivodeship map
  • Example – path in game
  • The Fibonacci series
  • Minimum coin change
  • Closest pair of points
  • Fractal generation
  • Rat in a maze
  • A Sudoku puzzle
  • Title guess
  • A password guess
  • Classification
  • Dictionaries
  • The last word
  • Why subscribe?
  • Packt is searching for authors like you

Product information

  • Title: C# Data Structures and Algorithms - Second Edition
  • Author(s): Marcin Jamro
  • Release date: February 2024
  • Publisher(s): Packt Publishing
  • ISBN: 9781803248271

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problem solving in data structures and algorithms using c#

Dot Net Tutorials

Most Recommended Data Structure and Algorithms Books using C#

Back to: C#.NET Tutorials For Beginners and Professionals

In this article, I will provide the list of the Most Recommended Data Structure and Algorithms Books using C# for Students, Beginners, and Professional Software Developers. If you want to start your carrier as a developer then understanding Data Structure and Algorithms is a must. Books are the best friend of students as well as developers and the first mode of learning new Languages, Frameworks, and Technologies and nothing can beat books when it comes to educating. It is the reason most experienced C# Developers recommend reading books for learning Data Structure and Algorithms. 

Combining the best C# Data Structure and Algorithms books along with articles, tutorials, and videos, you will get an excellent path to learning Data Structure and Algorithms using C# Language. Some of the books just give an overview of various Data Structure and Algorithms concepts, while some other Data Structure and Algorithms books go into the depth of each Data Structure and Algorithms concept.

There are hundreds and thousands of Data Structure and Algorithms books using C# available on Amazon or Internet or any other e-commerce site. And as a beginner, you might be confused to choose the right book to start learning Data Structure and Algorithms. Here, we are giving you a list of Data Structure and Algorithms Books using C# Language based on the experience of Learners and Professionals Developers. If you still haven’t put together your reading list, we’re here to help with our choice of the best-recommended books for Data Structure and Algorithms using C#.

1. Easy Learning Data Structures & Algorithms C#

Data Structures and Algorithms C# Practice, It is designed to be easy to read and understand although the topic itself is complicated. Algorithms are the procedures that software programs use to manipulate data structures. Besides clear and simple example programs. The programs demonstrate in graphical form what data structures look like and how they operate.

The complexity of life, because they do not understand to simplify the complex, simple is the beginning of wisdom. From the essence of the practice, this book briefly explains the concept and vividly cultivates programming interest, you will learn it easily, fast, and well.

Buy This Book: https://amzn.to/3Dy816F

Most Recommended Data Structure and Algorithms Books using C#

2. Arrays and Time Complexity Implementation Solutions in C#

This e-book is all about Arrays and how to use arrays in various time complexity scenarios situations, to solve real-life problems. It illustrates the common, and essential data structures algorithms, underscoring array processing with time complexity. It also details, with examples, how to go about creating step by step algorithm solutions, for solving array data-structure problems, such as Finding in basic and complex arrays, Pythagorean triplets (Using a 4-Algorithm Approach: Simple, Sorting, Hashing-Like, and HashSet algorithms, and when to use them), Finding the 2nd Largest Number in basic and complex arrays (Using a 3-Algorithm Approach: Simplest, Better than Simplest, and Most-Efficient algorithms), Finding in basic and complex arrays, local minima (defined as a number in an array, that is less than both of its neighbours, on its left and right), local maxima (defined as a number in an array, that is greater than both of its neighbours, on its left and right), and local extrema (defined as any number in an array, that is a local minima or a local maxima), Getting array positions based on its elements in basic and complex arrays, Finding in basic and complex arrays, missing element/s, How to remove duplicate elements in basic and complex arrays, How to find in basic and complex arrays, the missing and repeated elements, How to find in basic and complex arrays, two missing elements, How to find, in basic and complex array, triplet elements, whose sum matches or equals to any given target number, Finding in sorted & unsorted basic and complex arrays, two (2) elements whose sum equals to any given target number, Moving all zero values to the right in basic and complex arrays. These are just to summarise a few of the topics in this book. It also uses one of the world’s most popular programming languages (C# – pronounced C-Sharp) to describe how it can be applied or implemented by beginners, developers, and novices alike, for real-life scenario solutions, and it includes comprehensive asynchronous C# implementation and Test code, with useful reference points. Note: All C# code is written as asynchronous code. The book also offers the opportunity to learn asynchronous task process implementation methods in C#.

This book not only serves as a first-hand personal reference guide, for anyone that may need it, or has to tackle solution/s involving array data structure algorithms, but is also useful for novices, beginners, and software developers. It provides a comprehensive list, and down-to-earth step-by-step algorithms, of how to handle, time complexity with arrays, and how to learn and write asynchronous task process programming in C#, and how to turn them into viable implementable real-life solutions.

Buy This Book: https://amzn.to/2YGRtKD

Most Recommended Data Structure and Algorithms Books using C#

3. Algorithms C#: Explains Algorithms with Beautiful Pictures Learn it Easy Better and Well

This book is rich in examples, with beautiful pictures and texts, and explains the data structure and algorithms in a way that is easy to understand. It is designed to help programmers better use the energy of algorithms in daily projects.

  • Classic reference book in the field of algorithms: reflects the core knowledge system of algorithms
  • Comprehensive content: Comprehensive discussion of sorting, linked list, search, hash, graph, and tree algorithms, and data structures, covering the algorithms commonly used by every programmer
  • The new C# implementation code, using a modular programming style, gives the actual code of the algorithm.

Simple is the beginning of wisdom. From the essence of the practice, this book to briefly explains the concept and vividly cultivates programming interest, you will learn it easily, fast, and well.

Buy This Book: https://amzn.to/3iQg9XY

Algorithms C#: Explains Algorithms with Beautiful Pictures Learn it Easy Better and Well

4. Problem-Solving in Data Structures & Algorithms Using C#

This book is designed for interviews so, in Chapter 0, various preparation plans are proposed. Then in Chapter 1, a brief introduction of the programming language and the concept of recursion is explained. A number of problems based on recursion and array are explained.

  • Then in the coming chapter, we will be looking into complexity analysis. Then we will be looking into Sorting & Searching techniques.
  • Then will look into the various data structures and their algorithms. We will be looking into a Linked List, Stack, Queue, Trees, Heap, Hash Table, and Graphs.
  • Then we will be looking into algorithm analysis, we will be looking into Brute Force algorithms, Greedy algorithms, Divide & Conquer algorithms, Dynamic Programming, and Backtracking.
  • In the end, we will be looking into System Design, which will give a systematic approach to solving the design problems in an Interview.

Buy This Book: https://amzn.to/3luONby

Problem-Solving in Data Structures & Algorithms Using C#

5. Data Structures and Algorithms in C#

The data structure is a way to represent the storage and organization of data in the computer for programming languages to easily access the data and process the data within. There are several kinds of data structures that are very commonly used: Array, List, Queue, Stack, Binary Tree, and Set which we will discuss here. The different data structure has their own characteristics. These data structures are used in most programming languages. Here we will use the C# language to represent those data structures and see how to use them.

Buy This Book: https://amzn.to/3lsitpV

Data Structures and Algorithms in C#

Here, in this article, I provided the list of Most Recommended Data Structure and Algorithms Books using C# Language for Beginners and Professionals and I hope this Most Recommended Data Structure and Algorithms Books for Beginners and Professional article will help you with your needs and you enjoy this Most Recommended Data Structure and Algorithms Books using C# Programming Language for Beginners and Professional article.

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About the Author: Pranaya Rout

Pranaya Rout has published more than 3,000 articles in his 11-year career. Pranaya Rout has very good experience with Microsoft Technologies, Including C#, VB, ASP.NET MVC, ASP.NET Web API, EF, EF Core, ADO.NET, LINQ, SQL Server, MYSQL, Oracle, ASP.NET Core, Cloud Computing, Microservices, Design Patterns and still learning new technologies.

Problem Solving in Data Structures & Algorithms Using C# Problem Solving in Data Structures & Algorithms Using C#

Title availability, subject and genre.

  • C# (Computer program language)
  • Computer algorithms.
  • Data structures (Computer science)
  • [Place of publication not identified] : Hemant Jain, [2016]

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  • String from prefix and suffix of given two strings
  • Alternate bits of two numbers to create a new number
  • Minimum time to write characters using insert, delete and copy operation
  • Minimum sum of two elements from two arrays such that indexes are not same
  • Pyramid form (increasing then decreasing) consecutive array using reduce operations
  • Program for Sudoku Generator
  • Program for Conway's Game Of Life
  • Print all full nodes in a Binary Tree
  • Stooge Sort
  • Count Strictly Increasing Subarrays

Data Structures & Algorithms Guide for Developers

As a developer, understanding data structures and algorithms is crucial for writing efficient and scalable code. Here is a comprehensive guide to help you learn and master these fundamental concepts:

Introduction to Algorithms and Data Structures (DSA) :

  • Data Structures and Algorithms are foundational concepts in computer science that play a crucial role in solving computational problems efficiently.
  • Data structures are organized and stored in formats to enable efficient data manipulation and retrieval. They provide a way to organize and store data so that operations can be performed efficiently. Some of the common data structures that every developer should know are Arrays, Linked List, Stack, Queue, Trees, Graphs, etc.
  • Algorithms are step-by-step procedures or formulas for solving specific problems. They are a sequence of well-defined, unambiguous instructions designed to perform a specific task or solve a particular problem. Some of the common algorithms that every developer should know are Searching Algorithms, Sorting Algorithms, Graph Algorithms, Dynamic Programming, Divide and Conquer, etc.

Data Structure & Algorithms Guide for Developers

  • Introduction to Algorithms and Data Structures (DSA):
  • Linked Lists
  • Hash Tables
  • Sorting Algorithms
  • Searching Algorithms
  • Bitwise Algorithms
  • Greedy Algorithms
  • Divide and Conquer
  • Algorithm Analysis
  • Problem Solving
  • Why are Data Structure & Algorithms important in software development
  • Additional Resources

Basic Data Structures :

Learn how to create and manipulate arrays, including basic operations like insertion, deletion, and searching

The most basic yet important data structure is the array. It is a linear data structure. An array is a collection of homogeneous data types where the elements are allocated contiguous memory. Because of the contiguous allocation of memory, any element of an array can be accessed in constant time. Each array element has a corresponding index number. 

To learn more about arrays, refer to the article “ Introduction to Arrays “.

Here are some topics about array which you must learn:

  • Reverse Array  – Reverse an array means shifting the elements of an array in a reverse manner i.e., the last element becomes the first element, second last element becomes the second element, and so on. 
  • Rotation of Array  – Rotation of array means shifting the elements of an array in a circular manner i.e., in the case of right circular shift the last element becomes the first element, and all other element moves one point to the right. 
  • Rearranging an array  – Rearrangement of array elements suggests the changing of an initial order of elements following some conditions or operations.
  • Range queries in the array  – Often you need to perform operations on a range of elements. These functions are known as range queries.
  • Multidimensional array  – These are arrays having more than one dimension. The most used one is the 2-dimensional array, commonly known as a matrix.
  • Kadane’s algorithm
  • Dutch national flag algorithm

Types of Arrays:

  • One-dimensional array (1-D Array): You can imagine a 1d array as a row, where elements are stored one after another.
  • Two-dimensional array (2-D Array or Matrix): 2-D Multidimensional arrays can be considered as an array of arrays or as a matrix consisting of rows and columns.
  • Three-dimensional array (3-D Array): A 3-D Multidimensional array contains three dimensions, so it can be considered an array of two-dimensional arrays.

Linked Lists:

Understand the concept of linked lists, including singly linked lists, doubly linked lists, and circular linked lists

As the above data structures, the linked list is also a linear data structure. But  Linked List is different from Array  in its configuration. It is not allocated to contiguous memory locations. Instead, each node of the linked list is allocated to some random memory space and the previous node maintains a pointer that points to this node. So no direct memory access of any node is possible and it is also dynamic i.e., the size of the linked list can be adjusted at any time. To learn more about linked lists refer to the article “ Introduction to Linked List “.

The topics which you must want to cover are:

  • Singly Linked List  – In this, each node of the linked list points only to its next node.
  • Circular Linked List  – This is the type of linked list where the last node points back to the head of the linked list.
  • Doubly Linked List  – In this case, each node of the linked list holds two pointers, one point to the next node and the other points to the previous node.

Learn about the stack data structure and their applications

Stack  is a linear data structure which follows a particular order in which the operations are performed. The order may be  LIFO(Last In First Out) or FILO(First In Last Out) .

The reason why Stack is considered a complex data structure is that it uses other data structures for implementation, such as Arrays, Linked lists, etc. based on the characteristics and features of Stack data structure.

Learn about the queue data structure and their applications

Queue is a linear data structure which follows a particular order in which the operations are performed. The order may be FIFO (First In First Out) .

The reason why Queue is considered a complex data structure is that it uses other data structures for implementation, such as Arrays, Linked lists, etc. based on the characteristics and features of Queue data structure.

Understand the concepts of binary trees, binary search trees, AVL trees, and more

After having the basics covered about the  linear data structure , now it is time to take a step forward to learn about the non-linear data structures. The first non-linear data structure you should learn is the tree. 

Tree data structure  is similar to a tree we see in nature but it is upside down. It also has a root and leaves. The root is the first node of the tree and the leaves are the ones at the bottom-most level. The special characteristic of a tree is that there is only one path to go from any of its nodes to any other node.

Based on the maximum number of children of a node of the tree it can be – 

  • Binary tree  – This is a special type of tree where each node can have a maximum of 2 children.
  • Ternary tree  – This is a special type of tree where each node can have a maximum of 3 children.
  • N-ary tree  – In this type of tree, a node can have at most N children.

Based on the configuration of nodes there are also several classifications. Some of them are:

  • Complete Binary Tree  – In this type of binary tree all the levels are filled except maybe for the last level. But the last level elements are filled as left as possible.
  • Perfect Binary Tree  – A perfect binary tree has all the levels filled
  • Binary Search Tree  – A binary search tree is a special type of binary tree where the smaller node is put to the left of a node and a higher value node is put to the right of a node
  • Ternary Search Tree  – It is similar to a binary search tree, except for the fact that here one element can have at most 3 children.

Learn about graph representations, graph traversal algorithms (BFS, DFS), and graph algorithms (Dijkstra’s, Floyd-Warshall, etc.)

Another important non-linear data structure is the graph. It is similar to the Tree data structure, with the difference that there is no particular root or leaf node, and it can be traversed in any order.

A  Graph  is a non-linear data structure consisting of a finite set of vertices(or nodes) and a set of edges that connect a pair of nodes. 

Each edge shows a connection between a pair of nodes. This data structure helps solve many real-life problems. Based on the orientation of the edges and the nodes there are various types of graphs. 

Here are some must to know concepts of graphs:

  • Types of graphs  – There are different types of graphs based on connectivity or weights of nodes.
  • Introduction to BFS and DFS  – These are the algorithms for traversing through a graph
  • Cycles in a graph  – Cycles are a series of connections following which we will be moving in a loop.
  • Topological sorting in the graph
  • Minimum Spanning tree in graph

Advanced Data Structures :

Understand the concept of heaps and their applications, such as priority queues

A Heap is a special  Tree-based Data Structure  in which the tree is a complete binary tree.

Types of heaps:

Generally, heaps are of two types.

  • Max-Heap :  In this heap, the value of the root node must be the greatest among all its child nodes and the same thing must be done for its left and right sub-tree also.
  • Min-Heap :  In this heap, the value of the root node must be the smallest among all its child nodes and the same thing must be done for its left ans right sub-tree also.

Hash Tables:

Learn about hash functions, collision resolution techniques, and applications of hash tables

Hashing  refers to the process of generating a fixed-size output from an input of variable size using the mathematical formulas known as hash functions. This technique determines an index or location for the storage of an item in a data structure.

Understand trie data structures and their applications, such as prefix matching and autocomplete

Trie is a type of k-ary search tree used for storing and searching a specific key from a set. Using Trie, search complexities can be brought to optimal limit (key length). 

A trie (derived from retrieval) is a multiway tree data structure used for storing strings over an alphabet. It is used to store a large amount of strings. The pattern matching can be done efficiently using tries.

  • Trie Delete
  • Trie data structure
  • Displaying content of Trie
  • Applications of Trie
  • Auto-complete feature using Trie
  • Minimum Word Break
  • Sorting array of strings (or words) using Trie
  • Pattern Searching using a Trie of all Suffixes

Basic Algorithms :

Basic algorithms are the fundamental building blocks of computer science and programming. They are essential for solving problems efficiently and are often used as subroutines in more complex algorithms.

Sorting Algorithms:

Learn about different sorting algorithms like bubble sort, selection sort, insertion sort, merge sort, quicksort, and their time complexity

Sorting Algorithm  is used to rearrange a given array or list elements according to a comparison operator on the elements. The comparison operator is used to decide the new order of element in the respective data structure.

Sorting algorithms are essential in computer science and programming, as they allow us to organize data in a meaningful way. Here’s an overview of some common sorting algorithms:

  • Description : Bubble sort repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
  • Time Complexity : O(n^2) in the worst case and O(n) in the best case (when the list is already sorted).
  • Description : Selection sort divides the input list into two parts: the sublist of items already sorted and the sublist of items remaining to be sorted. It repeatedly selects the smallest (or largest) element from the unsorted sublist and swaps it with the first element of the unsorted sublist.
  • Time Complexity : O(n^2) in all cases (worst, average, and best).
  • Description : Insertion sort builds the final sorted array one element at a time by repeatedly inserting the next element into the sorted part of the array.
  • Description : Merge sort is a divide-and-conquer algorithm that divides the input list into two halves, sorts each half recursively, and then merges the two sorted halves.
  • Time Complexity : O(n log n) in all cases (worst, average, and best).
  • Description : Quick sort is a divide-and-conquer algorithm that selects a pivot element and partitions the input list into two sublists: elements less than the pivot and elements greater than the pivot. It then recursively sorts the two sublists.
  • Time Complexity : O(n^2) in the worst case and O(n log n) in the average and best cases.
  • Description : Heap sort is a comparison-based sorting algorithm that builds a heap from the input list and repeatedly extracts the maximum (or minimum) element from the heap and rebuilds the heap.
  • Description : Radix sort is a non-comparison-based sorting algorithm that sorts elements by their individual digits or characters. It sorts the input list by processing the digits or characters from the least significant digit to the most significant digit.
  • Time Complexity : O(nk) where n is the number of elements in the input list and k is the number of digits or characters in the largest element.

Searching Algorithms:

Understand linear search, binary search, and their time complexity

Searching algorithms are used to find a particular element or value within a collection of data. Here are two common searching algorithms:

  • Description : Linear search, also known as sequential search, checks each element in the list until the desired element is found or the end of the list is reached. It is the simplest and most intuitive searching algorithm.
  • Time Complexity : O(n) in the worst case, where n is the number of elements in the list. This is because in the worst case, the algorithm may need to check every element in the list.
  • Description : Binary search is a more efficient searching algorithm that works on sorted lists. It repeatedly divides the list in half and checks whether the desired element is in the left or right half. It continues this process until the element is found or the list is empty.
  • Time Complexity : O(log n) in the worst case, where n is the number of elements in the list. This is because the algorithm divides the list in half at each step, leading to a logarithmic time complexity.

Comparison:

  • Works on both sorted and unsorted lists.
  • Time complexity is O(n) in the worst case.
  • Simple to implement.
  • Works only on sorted lists.
  • Time complexity is O(log n) in the worst case.
  • More efficient than linear search for large lists.

Understand Recursion, how it works and solve problems about how Recursion can solve complex problems easily

The process in which a function calls itself directly or indirectly is called recursion and the corresponding function is called a recursive function. Using a recursive algorithm, certain problems can be solved quite easily. Recursion is one of the most important algorithms which uses the concept of code reusability and repeated usage of the same piece of code. 

A recursive function solves a particular problem by calling itself for smaller subproblems and using those solutions to solve the original subproblem. 

The point which makes Recursion one of the most used algorithms is that it forms the base for many other algorithms such as:

  • Tree traversals
  • Graph traversals
  • Divide and Conquers Algorithms
  • Backtracking algorithms
  • Tower of Hanoi

Backtracking:

Learn Backtracking to explore all the possible combinations to solve a problem and track back whenever we reach a dead-end.

Backtracking is a problem-solving algorithmic technique that involves finding a solution incrementally by trying  different options  and  undoing  them if they lead to a  dead end . It is commonly used in situations where you need to explore multiple possibilities to solve a problem, like searching for a path in a maze or solving puzzles like Sudoku. When a dead end is reached, the algorithm backtracks to the previous decision point and explores a different path until a solution is found or all possibilities have been exhausted.

Backtracking is used to solve problems which require exploring all the combinations or states. Some of the common problems which can be easily solved using backtracking are:

  • N-Queen Problem
  • Solve Sudoku
  • M-coloring problem
  • Rat in a Maze
  • The Knight’s tour problem
  • Permutation of given String
  • Subset Sum problem
  • Magnet Puzzle

Advanced Algorithms:

Bitwise algorithms:.

The  Bitwise Algorithms  is used to perform operations at the bit-level or to manipulate bits in different ways. The bitwise operations are found to be much faster and are sometimes used to improve the efficiency of a program. Bitwise algorithms  involve manipulating individual bits of binary representations of numbers to perform operations efficiently. These algorithms utilize bitwise operators like  AND, OR, XOR, shift operators , etc., to solve problems related to tasks such as setting, clearing, or toggling specific bits, checking if a number is even or odd, swapping values without using a temporary variable, and more.

Some of the most common problems based on Bitwise Algorithms are:

  • Binary representation of a given number
  • Count set bits in an integer
  • Add two bit strings
  • Turn off the rightmost set bit
  • Rotate bits of a number
  • Compute modulus division by a power-of-2-number
  • Find the Number Occurring Odd Number of Times
  • Program to find whether a given number is power of 2

Dynamic Programming:

Understand the concept of dynamic programming and how it can be applied to solve complex problems efficiently

Dynamic programming is a problem-solving technique used to solve problems by breaking them down into simpler subproblems. It is based on the principle of optimal substructure (optimal solution to a problem can be constructed from the optimal solutions of its subproblems) and overlapping subproblems (solutions to the same subproblems are needed repeatedly).

Dynamic programming is typically used to solve problems that can be divided into overlapping subproblems, such as those in the following categories:

  • Optimization Problems : Problems where you need to find the best solution from a set of possible solutions. Examples include the shortest path problem, the longest common subsequence problem, and the knapsack problem.
  • Counting Problems : Problems where you need to count the number of ways to achieve a certain goal. Examples include the number of ways to make change for a given amount of money and the number of ways to arrange a set of objects.
  • Decision Problems : Problems where you need to make a series of decisions to achieve a certain goal. Examples include the traveling salesman problem and the 0/1 knapsack problem.

Dynamic programming can be applied to solve these problems efficiently by storing the solutions to subproblems in a table and reusing them when needed. This allows for the elimination of redundant computations and leads to significant improvements in time and space complexity.

The steps involved in solving a problem using dynamic programming are as follows:

  • Identify the Subproblems : Break down the problem into smaller subproblems that can be solved independently.
  • Define the Recurrence Relation : Define a recurrence relation that expresses the solution to the original problem in terms of the solutions to its subproblems.
  • Solve the Subproblems : Solve the subproblems using the recurrence relation and store the solutions in a table.
  • Build the Solution : Use the solutions to the subproblems to construct the solution to the original problem.
  • Optimize : If necessary, optimize the solution by eliminating redundant computations or using space-saving techniques.

Greedy Algorithms:

Learn about greedy algorithms and their applications in optimization problems

Greedy algorithms are a class of algorithms that make a series of choices, each of which is the best at the moment, with the hope that this will lead to the best overall solution. They do not always guarantee an optimal solution, but they are often used because they are simple to implement and can be very efficient.

Here are some key points about greedy algorithms:

  • Greedy Choice Property : A greedy algorithm makes a series of choices, each of which is the best at the moment, with the hope that this will lead to the best overall solution. This is known as the greedy choice property.
  • Optimal Substructure : A problem exhibits optimal substructure if an optimal solution to the problem contains optimal solutions to its subproblems. Many problems that can be solved using greedy algorithms exhibit this property.
  • Minimum Spanning Tree : In graph theory, a minimum spanning tree is a subset of the edges of a connected, edge-weighted graph that connects all the vertices together, without any cycles and with the minimum possible total edge weight.
  • Shortest Path : In graph theory, the shortest path problem is the problem of finding a path between two vertices in a graph such that the sum of the weights of its constituent edges is minimized.
  • Huffman Encoding : Huffman encoding is a method of lossless data compression that assigns variable-length codes to input characters, with shorter codes assigned to more frequent characters.
  • Greedy Choice Property : A greedy algorithm makes a series of choices, each of which is the best at the moment, with the hope that this will lead to the best overall solution.
  • Optimal Substructure : A problem exhibits optimal substructure if an optimal solution to the problem contains optimal solutions to its subproblems.
  • Greedy Algorithms are not always optimal : Greedy algorithms do not always guarantee an optimal solution, but they are often used because they are simple to implement and can be very efficient.
  • Dijkstra’s Algorithm : Dijkstra’s algorithm is a graph search algorithm that finds the shortest path between two vertices in a graph with non-negative edge weights.
  • Prim’s Algorithm : Prim’s algorithm is a greedy algorithm that finds a minimum spanning tree for a weighted undirected graph.

Divide and Conquer:

Understand the divide-and-conquer paradigm and how it is used in algorithms like merge sort and quicksort

Divide and conquer is a problem-solving paradigm that involves breaking a problem down into smaller subproblems, solving each subproblem independently, and then combining the solutions to the subproblems to solve the original problem. It is a powerful technique that is used in many algorithms, including merge sort and quicksort.

Here are the key steps involved in the divide-and-conquer paradigm:

  • Divide : Break the problem down into smaller subproblems that are similar to the original problem but smaller in size.
  • Conquer : Solve each subproblem independently using the same divide-and-conquer approach.
  • Combine : Combine the solutions to the subproblems to solve the original problem.

Merge Sort:

  • Divide : Divide the unsorted list into two sublists of about half the size.
  • Conquer : Recursively sort each sublist.
  • Combine : Merge the two sorted sublists into a single sorted list.
  • Divide : Choose a pivot element from the list and partition the list into two sublists: elements less than the pivot and elements greater than the pivot.
  • Combine : Combine the sorted sublists and the pivot element to form a single sorted list.

The divide-and-conquer paradigm is used in many algorithms because it can lead to efficient solutions for a wide range of problems. It is particularly useful for problems that can be divided into smaller subproblems that can be solved independently. By solving each subproblem independently and then combining the solutions, the divide-and-conquer approach can lead to a more efficient solution than solving the original problem directly.

Algorithm Analysis :

Learn about the time complexity and space complexity of algorithms and how to analyze them using Big O notation

Time complexity and space complexity are two important measures of the efficiency of an algorithm. They describe how the time and space requirements of an algorithm grow as the size of the input increases. Big O notation is a mathematical notation used to describe the upper bound on the growth rate of an algorithm’s time or space requirements.

  • Time complexity measures the amount of time an algorithm takes to run as a function of the size of the input.
  • It is often expressed using Big O notation, which describes the upper bound on the growth rate of the algorithm’s time requirements.
  • For example, an algorithm with a time complexity of O(n) takes linear time, meaning the time it takes to run increases linearly with the size of the input.
  • Common time complexities include O(1) (constant time), O(log n) (logarithmic time), O(n) (linear time), O(n log n) (linearithmic time), O(n^2) (quadratic time), O(n^3) (cubic time), and more.
  • Space complexity measures the amount of memory an algorithm uses as a function of the size of the input.
  • It is also expressed using Big O notation, which describes the upper bound on the growth rate of the algorithm’s space requirements.
  • For example, an algorithm with a space complexity of O(n) uses linear space, meaning the amount of memory it uses increases linearly with the size of the input.
  • Common space complexities include O(1) (constant space), O(log n) (logarithmic space), O(n) (linear space), O(n log n) (linearithmic space), O(n^2) (quadratic space), O(n^3) (cubic space), and more.
  • Identify the basic operations performed by the algorithm (e.g., comparisons, assignments, arithmetic operations).
  • Determine the number of times each basic operation is performed as a function of the size of the input.
  • Express the total number of basic operations as a mathematical function of the input size.
  • Simplify the mathematical function and express it using Big O notation.
  • The basic operations performed by the algorithm are comparisons and assignments.
  • The number of comparisons is n – 1, and the number of assignments is 1.
  • The total number of basic operations is 2n – 2.
  • The time complexity of the algorithm is O(n), and the space complexity is O(1).

Understand the concepts of best-case, worst-case, and average-case time complexity.

The concepts of best-case, worst-case, and average-case time complexity are used to describe the performance of an algorithm under different scenarios. They help us understand how an algorithm behaves in different situations and provide insights into its efficiency.

  • The best-case time complexity of an algorithm is the minimum amount of time it takes to run on any input of a given size.
  • It represents the scenario where the algorithm performs optimally and takes the least amount of time to complete.
  • Best-case time complexity is often denoted using Big O notation, where O(f(n)) represents the upper bound on the growth rate of the best-case running time as a function of the input size n.
  • For example, an algorithm with a best-case time complexity of O(1) takes constant time, meaning it always completes in the same amount of time, regardless of the input size.
  • The worst-case time complexity of an algorithm is the maximum amount of time it takes to run on any input of a given size.
  • It represents the scenario where the algorithm performs the least efficiently and takes the most amount of time to complete.
  • Worst-case time complexity is often denoted using Big O notation, where O(f(n)) represents the upper bound on the growth rate of the worst-case running time as a function of the input size n.
  • For example, an algorithm with a worst-case time complexity of O(n^2) takes quadratic time, meaning the time it takes to run increases quadratically with the input size.
  • The average-case time complexity of an algorithm is the average amount of time it takes to run on all possible inputs of a given size.
  • It represents the expected performance of the algorithm when running on random inputs.
  • Average-case time complexity is often denoted using Big O notation, where O(f(n)) represents the upper bound on the growth rate of the average-case running time as a function of the input size n.
  • For example, an algorithm with an average-case time complexity of O(n) takes linear time, meaning the time it takes to run increases linearly with the input size.

Problem Solving :

Practice solving algorithmic problems on platforms like GeeksForGeeks , LeetCode, HackerRank, etc. GeeksforGeeks is a popular platform that provides a wealth of resources for learning and practicing problem-solving in computer science and programming. Here’s how you can use GeeksforGeeks for problem-solving:

  • Covers a wide range of topics, including data structures, algorithms, programming languages, databases, and more.
  • Support for multiple programming languages. You can choose any language you’re comfortable with or want to learn.
  • Detailed explanations, examples, and implementations for various data structures and algorithms.
  • Includes various approach to solve a problem starting from Brute Force to the most optimal approach.
  • Interview Preparation section for common coding interview questions, tips and guidance.
  • Discussion forum where users can ask and answer questions and engage in discussions to learn from others, seek help, and share your knowledge.
  • Provides an online IDE for coding practice and experiment with code snippets, run them, and check the output directly on the platform.

Why are Data Structure & Algorithms important in software development?

Data Structures and Algorithms are fundamental concepts in computer science and play a crucial role in software development for several reasons:

Additional Resources :

  • Online Courses: Enroll in online courses on platforms like GeeksforGeeks, Coursera, edX, and Udemy.
  • Practice: Solve coding challenges on websites like GeeksforGeeks, LeetCode, HackerRank, and CodeSignal.
  • Community: Join online communities like GeeksforGeeks, Stack Overflow, Reddit, and GitHub to learn from others and share your knowledge.
  • Books: Read books like “Introduction to Algorithms” by Cormen, Leiserson, Rivest, and Stein, and “Algorithms” by Robert Sedgewick and Kevin Wayne.

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    "Problem Solving in Data Structures & Algorithms" is a series of books about the usage of Data Structures and Algorithms in computer programming. The book is easy to follow and is written for interview preparation point of view. In various books, the examples are solved in various languages like C, C++, Java, C#, Python, VB, JavaScript and PHP.

  7. C# Data Structures and Algorithms

    Visualize data structures and algorithms through illustrations for a clearer understanding of their analysis; Purchase of the print or Kindle book includes a free PDF eBook; Book Description. Building your own applications is exciting but challenging, especially when tackling complex problems tied to advanced data structures and algorithms.

  8. Data Structure and Algorithms Books using C#

    Problem-Solving in Data Structures & Algorithms Using C#. This book is designed for interviews so, in Chapter 0, various preparation plans are proposed. Then in Chapter 1, a brief introduction of the programming language and the concept of recursion is explained. A number of problems based on recursion and array are explained.

  9. Problem Solving in Data Structures & Algorithms Using C#: Programming

    "Problem Solving in Data Structures & Algorithms" is a series of books about the usage of Data Structures and Algorithms in computer programming. The book is easy to follow and is written for interview preparation point of view. In these books, the examples are solved in various languages like Go, C, C++, Java, C#, Python, VB, JavaScript and PHP.

  10. Problem-Solving-in-Data-Structures-Algorithms-using-C#

    This is the code repository of book Problem Solving in Data Structures & Algorithms using C#. \n \n. About The Book \n \n; This textbook provides in depth coverage of various Data Structures and Algorithms. \n; Concepts are discussed in easy to understand manner. \n; Large number of diagrams are provided to grasp concepts easily. \n

  11. Data Structures and Algorithms Using C#

    Mike McMillan provides a tutorial on how to use data structures and algorithms plus the first comprehensive reference for C# implementation of data structures and algorithms found in the .NET Framework library, as well as those developed by the programmer. ... He was a co-author of Programming and Problem-Solving With Visual Basic.NET. Mike has ...

  12. Problem Solving in Data Structures and Algorithms Using C#

    "Problem Solving in Data Structures & Algorithms" is a series of books about the usage of Data Structures and Algorithms in computer programming. The book is easy to follow and is written for interview preparation point of view. In various books, the examples are solved in various languages like Go, C, C++, Java, C#, Python, VB, JavaScript and PHP.

  13. Data Structures and Algorithms Using C#

    Let's look at a problem we will eventually solve using the BitArray class. The problem involves finding prime numbers. An ancient method, ... This book discusses the development and implementation of data structures and algorithms using C#. The data structures we use in this book are found in the .NET Framework class library System.Collections.

  14. Advanced Algorithms (Chapter 17)

    In this chapter, we look at two advanced topics: dynamic programming and greedy algorithms. Dynamic programming is a technique that is often considered to be the reverse of recursion—a recursive solution starts at the top and breaks the problem down solving all small problems until the complete problem is solved; a dynamic programming ...

  15. Data Structures and Problem Solving Using C#

    Data Structures and Problem Solving Using C++ provides an introduction to data structures and algorithms from the viewpoint of abstract thinking and problem solving, as well as the use of C++. It is a complete revision of Weiss' successful CS2 book Algorithms, Data Structures, and Problem Solving with C++.

  16. Data Structures and Algorithms Using C#

    Mike McMillan provides a tutorial on how to use data structures and algorithms plus the first comprehensive reference for C# implementation of data structures and algorithms found in the .NET Framework library, as well as those developed by the programmer. ... He was a co-author of Programming and Problem-Solving With Visual Basic.NET. Mike has ...

  17. Problem Solving in Data Structures & Algorithms Using C#

    ABSTRACT. "Problem Solving in Data Structures & Algorithms" is a series of books about the usage of Data Structures and Algorithms in computer programming. The book is easy to follow and is written for interview preparation point of view. In these books, the examples are solved in various languages like Go, C, C++, Java, C#, Python, VB ...

  18. Data Structures and Algorithms in C#:

    A few exercises follow at the end of each chapter, allowing one to put into practice concepts discussed in the chapter. Topics and concepts are introduced from a more practical problem-solving perspective and no formal analysis of data structures or algorithms is provided. Chapters assume some familiarity with the C# programming language, as well.

  19. Problem Solving in Data Structures & Algorithms Using C#

    "Problem Solving in Data Structures & Algorithms" is a series of books about the usage of Data Structures and Algorithms in computer programming. The book is easy to follow and is written for interview preparation point of view. In various books, the examples are solved in various languages like C, C++, Java, C#, Python, VB, JavaScript and PHP.

  20. Data Structures & Algorithms Guide for Developers

    Introduction to Algorithms and Data Structures (DSA): Data Structures and Algorithms are foundational concepts in computer science that play a crucial role in solving computational problems efficiently. Data structures are organized and stored in formats to enable efficient data manipulation and retrieval. They provide a way to organize and ...

  21. Problem-Solving-in-Data-Structures-and-Algorithms-using-C

    About The Book. This textbook provides in depth coverage of various Data Structures and Algorithms. Concepts are discussed in easy to understand manner. Large number of diagrams are provided to grasp concepts easily. Time and Space complexities of various algorithms are discussed. Helpful for interviews preparation and competitive coding.