Dynamic Programming For Coding

DYNAMIC PROGRAMMING FOR CODING PDF Book Details:
Author: Meenakshi
Publisher: Notion Press
ISBN: 9781946556691
Size: 80.53 MB
Format: PDF, Kindle
Category : Computers
Languages : en
Pages : 144
View: 7601

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Dynamic Programming For Coding PDF

by Meenakshi, Dynamic Programming For Coding Books available in PDF, EPUB, Mobi Format. Download Dynamic Programming For Coding books, I wanted to compute 80th term of the Fibonacci series. I wrote the rampant recursive function, int fib(int n){ return (1==n 2==n) ? 1: fib(n-1) + fib(n-2); } and waited for the result. I wait... and wait... and wait... With an 8GB RAM and an Intel i5 CPU, why is it taking so long? I terminated the process and tried computing the 40th term. It took about a second. I put a check and was shocked to find that the above recursive function was called 204,668,309 times while computing the 40th term. More than 200 million times? Is it reporting function calls or scam of some government? The Dynamic Programming solution computes 100th Fibonacci term in less than fraction of a second, with a single function call, taking linear time and constant extra memory. A recursive solution, usually, neither pass all test cases in a coding competition, nor does it impress the interviewer in an interview of company like Google, Microsoft, etc. The most difficult questions asked in competitions and interviews, are from dynamic programming. This book takes Dynamic Programming head-on. It first explain the concepts with simple examples and then deep dives into complex DP problems.


Dynamic Programming For The Day Before Your Coding Interview

Dynamic Programming for the Day Before Your Coding Interview PDF Book Details:
Author: Ue Kiao
Publisher:
ISBN:
Size: 63.85 MB
Format: PDF, Kindle
Category :
Languages : en
Pages : 52
View: 1684

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Dynamic Programming For The Day Before Your Coding Interview PDF

by Ue Kiao, Dynamic Programming For The Day Before Your Coding Interview Books available in PDF, EPUB, Mobi Format. Download Dynamic Programming For The Day Before Your Coding Interview books, Dynamic Programming is a fundamental algorithmic technique which is behind solving some of the toughest computing problems.In this book, we have covered some Dynamic Programming problems which will give you the general idea of formulating a Dynamic Programming solution and some practice on applying it on a variety of problems.Some of the problems we have covered are: * Permutation coefficientThis is a basic problem but is significant in understanding the idea behind Dynamic Programming. We have used this problem to: * Present the two core ideas of Dynamic Programming to make the idea clear and help you understand what Dynamic Programming mean. * Show another approach which can same performance (in terms of time complexity) and understand how it is different from our Dynamic Programming approach* Longest Common SubstringThis is an important problem as we see how we can apply Dynamic Programming in string problems. In the process, we have demonstrated the core ideas of handling string data which helps in identifying the cases when Dynamic Programming is the most efficient approach.* XOR valueThis is another significant problem as we are applying Dynamic Programming on a Number Theory problem more specifically problem involving subset generation. The search space is exponential in size but with our efficient approach, we can search the entire data in polynomial time which is a significant improvement.This brings up a fundamental power of Dynamic Programming: Search exponential search space in polynomial time* K edgesIn line with our previous problems, in this problem, we have applied Dynamic Programming in a graph-based problem. This is a core problem as in this we learn that: * Dynamic Programming makes the solution super-efficient * Extending the Dynamic Programming solution using Divide and Conquer enables us to solve it more efficientlyThis problem shows a problem where Dynamic Programming is not the most efficient solution but is in the right path.We have covered other relevant solutions and ideas as well so that you have the complete idea of the problems and understand deeply the significance of Dynamic Programming in respect to the problems.This book has been carefully prepared and reviewed by Top programmers and Algorithmic researchers and members of OpenGenus. We would like to thank Aditya Chatterjee and Ue Kiao for their expertise in this domain and reviews from professors at The University of Tokyo and Tokyo Institute of Technology.Read this book now and ace your upcoming coding interview. This is a must read for everyone preparing for Coding Interviews at top companies.


String Algorithms For The Day Before Your Coding Interview

String Algorithms for the Day Before Your Coding Interview PDF Book Details:
Author: Ue Kiao
Publisher:
ISBN:
Size: 80.42 MB
Format: PDF, Mobi
Category :
Languages : en
Pages : 40
View: 1999

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String Algorithms For The Day Before Your Coding Interview PDF

by Ue Kiao, String Algorithms For The Day Before Your Coding Interview Books available in PDF, EPUB, Mobi Format. Download String Algorithms For The Day Before Your Coding Interview books, Strings are fundamental data type in real world and developing algorithms to deal with it is an important domain. In interviews, often, string algorithms are most insightful and challenging.In this guide for the day before your coding interview, we have explored some problems and demonstrated the thought process to solve it starting from the brute force solutions. In the process, we have covered all fundamental ideas along with applying Dynamic Programming to String algorithms so that you are able to solve all string-based problems. Some of the problems we have covered are: - Check substring: This is an important fundamental problem where we learn how strings can be handled just like numeric data and algorithms for numeric data can be leveraged.Some of the core concepts we explored are string hashing, rolling hash and much more.- Longest common substring: This is a core problem as this uses the concepts we gained in the previous problems and an alternative solution is to use Dynamic Programming.The core idea is to apply Dynamic Programming over two different string data.- Longest repeating substring: In line with our previous problem, we explored how to apply Dynamic Programming for this problem. The key distinction is that we are dealing with just 1 string instead of 2 strings as in the previous problem. Unlike the previous problem, the Dynamic Programming approach is the only optimal solution.With these problems and the thought process to solve them, you will be fully prepared.This book has been carefully prepared and reviewed by Top programmers and Algorithmic researchers and members of OpenGenus. We would like to thank Aditya Chatterjee and Ue Kiao for their expertise in this domain and reviews from professors at The University of Tokyo and Tokyo Institute of Technology.Read this book now and ace your upcoming coding interview. This is a must read for everyone preparing for Coding Interviews at top companies.Books in this series ("Day before coding Interview"): - Problems for the day before your coding interview- Greedy Algorithms for the day before your Coding Interview- Dynamic Programming for the day before your coding interview- String Algorithms for the day before your Coding Interview


Graph Algorithms For The Day Before Your Coding Interview

Graph Algorithms for the Day Before Your Coding Interview PDF Book Details:
Author: Ue Kiao
Publisher:
ISBN:
Size: 18.16 MB
Format: PDF, ePub, Docs
Category :
Languages : en
Pages : 46
View: 4952

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Graph Algorithms For The Day Before Your Coding Interview PDF

by Ue Kiao, Graph Algorithms For The Day Before Your Coding Interview Books available in PDF, EPUB, Mobi Format. Download Graph Algorithms For The Day Before Your Coding Interview books, Graph Algorithms are fundamentally important and different than other Algorithmic domains as it gives an inherent structure to the data and we operate on it. This is one of the most important domains for Coding Interviews focused on problem solving.Following are some of the problems we have explored which involve ideas to solve a wider range of problems: - All paths between two verticesThis is a fundamental problem as modifications to it results in solving a wide range of problems. In the process of formulating a solution, we have explored core ideas like graph traversal techniques like Depth First Search and Graph representation like Adjacency List.- Mother VertexThis is an important problem as it highlights two key ideas of Graph problems that is connectivity and importance of specific vertices.We have solved this problem using two approaches where the efficient approach is a modification of Depth First Search and takes O(V^2) time complexity.- Paths with K edgesThis is an important problem as it demonstrates how we can utilize ideas from Dynamic Programming and Divide and Conquer to solve Graph Problems.We have demonstrated four approaches where the brute force approach takes O(2^V x V) time, improving it with a structure we get to O(V^K) time, further applying Dynamic Programming to it, we get to O(V^3 * K) time and finally, using Divide and Conquer to optimize calculation, we arrive at O(V^3 * logK) time.This is a perfect Graph Algorithm problem.We have covered more variants of the problems and ideas in our conclusion to give a bigger picture and better equip you to solve any problem.With these problems and the thought process to solve them, you will be fully prepared.This book has been carefully prepared and reviewed by Top programmers and Algorithmic researchers and members of OpenGenus. We would like to thank Aditya Chatterjee and Ue Kiao for their expertise in this domain and reviews from professors at The University of Tokyo and Tokyo Institute of Technology.Read this book now and ace your upcoming coding interview. This is a must read for everyone preparing for Coding Interviews at top companies.Books in this series ("Day before coding Interview"): - Problems for the day before your coding interview- Greedy Algorithms for the day before your Coding Interview- Dynamic Programming for the day before your coding interview- String Algorithms for the day before your Coding Interview- Mathematical Algorithms for the day before your Coding Interview- Graph Algorithms for the day before your Coding Interview


Dynamic Programming For Coding Interviews

Dynamic Programming for Coding Interviews PDF Book Details:
Author: Meenakshi
Publisher: Notion Press
ISBN: 194655670X
Size: 58.18 MB
Format: PDF, ePub, Mobi
Category : Computers
Languages : en
Pages : 142
View: 6039

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Dynamic Programming For Coding Interviews PDF

by Meenakshi, Dynamic Programming For Coding Interviews Books available in PDF, EPUB, Mobi Format. Download Dynamic Programming For Coding Interviews books, I wanted to compute 80th term of the Fibonacci series. I wrote the rampant recursive function, int fib(int n){ return (1==n || 2==n) ? 1 : fib(n-1) + fib(n-2); } and waited for the result. I wait… and wait… and wait… With an 8GB RAM and an Intel i5 CPU, why is it taking so long? I terminated the process and tried computing the 40th term. It took about a second. I put a check and was shocked to find that the above recursive function was called 204,668,309 times while computing the 40th term. More than 200 million times? Is it reporting function calls or scam of some government? The Dynamic Programming solution computes 100th Fibonacci term in less than fraction of a second, with a single function call, taking linear time and constant extra memory. A recursive solution, usually, neither pass all test cases in a coding competition, nor does it impress the interviewer in an interview of company like Google, Microsoft, etc. The most difficult questions asked in competitions and interviews, are from dynamic programming. This book takes Dynamic Programming head-on. It first explain the concepts with simple examples and then deep dives into complex DP problems.


Datenstrukturen Und Algorithmen

Datenstrukturen und Algorithmen PDF Book Details:
Author: Ralf Hartmut Güting
Publisher: Springer-Verlag
ISBN: 3658046767
Size: 70.57 MB
Format: PDF, Mobi
Category : Computers
Languages : de
Pages : 393
View: 3517

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Datenstrukturen Und Algorithmen PDF

by Ralf Hartmut Güting, Datenstrukturen Und Algorithmen Books available in PDF, EPUB, Mobi Format. Download Datenstrukturen Und Algorithmen books, Effiziente Algorithmen und Datenstrukturen sind ein zentrales Thema der Informatik. Beide Themen sind untrennbar miteinander verknüpft, denn Algorithmen arbeiten auf Datenstrukturen und Datenstrukturen enthalten wiederum Algorithmen als Komponenten. Dieses Buch vermittelt grundlegende Lösungsverfahren zu den wichtigsten Problembereichen bei der Arbeit mit Datenstrukturen und Algorithmen. Leser lernen neue Algorithmen zu entwerfen und ihre Kosten in Bezug auf Laufzeit und Speicherplatz zu analysieren. Die Autoren führen in programmiersprachliche Konzepte für Datenstrukturen ein und erläutern Datentypen, die die Bausteine für die Implementierung komplexer Algorithmen und Datenstrukturen bilden. Neben der Darstellung von Sortieralgorithmen und Graphen setzt das Buch mit Kapiteln zu geometrischen Algorithmen und Techniken zur Kürzeste-Wege-Suche mittels Kontraktionshierarchien einige besondere Schwerpunkte. Jedes Kapitel schließt mit Aufgaben und Literaturhinweisen für alle, die die Thematik vertiefen wollen. Alle Programmbeispiele in dem Buch sind in Java formuliert. Grundlage des Buchs sind Veranstaltungen zu Datenstrukturen und zu geometrischen Algorithmen, die Ralf Hartmut Güting seit vielen Jahren an der Fernuniversität Hagen anbietet. Der Stoff umfasst eine einsemestrige vierstündige Vorlesung. Für die Neuauflage wurde das Lehrbuch erweitert und aktualisiert. Es richtet sich an Softwareentwickler und dient als Lehrbuch im Studiengang Informatik.


Mathematical Algorithms For The Day Before Your Coding Interview

Mathematical Algorithms for the Day Before Your Coding Interview PDF Book Details:
Author: Ue Kiao
Publisher:
ISBN:
Size: 71.74 MB
Format: PDF, Kindle
Category :
Languages : en
Pages : 52
View: 597

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Mathematical Algorithms For The Day Before Your Coding Interview PDF

by Ue Kiao, Mathematical Algorithms For The Day Before Your Coding Interview Books available in PDF, EPUB, Mobi Format. Download Mathematical Algorithms For The Day Before Your Coding Interview books, Mathematical Algorithms are fundamentally important as several real-life problems can be modeled as a Mathematical problem. Solving such problems require mathematical insights.These problems are a fundamental part of Interviews as it illustrates the thinking process of the candidate clearly. By going through the problems in this book, you will be well prepared to tackle any Mathematical problem.Following are some of the problems we have explored which involve ideas to solve a wider range of problems.- Smallest number with multiplesThis is a unique problem where we learn key insights regarding Prime factorization, role of primes in multiples and much more.We improve the time complexity of this problem starting from O(N^3 * log N) to O(N * log N * log N) to O(N * log log N).- Largest palindromeIn this problem, we have reduced 810000 comparisons to 362 comparisons based on three deep insights. This is a dramatic improvement and demonstrates that even if time complexity cannot be improved, the performance can be improved significantly.- GCD of sub-partsThis problem brings up key insights involving GCD (a common and important topic) and in the process, we have explored several standard algorithms like Euclidean' s GCD Algorithm in the path of developing our custom algorithm for the given problem.- Next PermutationThis problem demonstrates a significant improvement from O(N^N x N x logN) time to O(N) time complexity. Moreover, it illustrates that improving time complexity does not necessarily mean increasing space complexity as it reduces space complexity from O(N^N) to O(1).This brings in idea of Greedy Algorithms to Mathematical Algorithm and in the process, we have explored several standard algorithms like Heap's Algorithm.With these problems and the thought process to solve them, you will be fully prepared.This book has been carefully prepared and reviewed by Top programmers and Algorithmic researchers and members of OpenGenus. We would like to thank Aditya Chatterjee and Ue Kiao for their expertise in this domain and reviews from professors at The University of Tokyo and Tokyo Institute of Technology.Read this book now and ace your upcoming coding interview. This is a must read for everyone preparing for Coding Interviews at top companies.Books in this series ("Day before coding Interview"): - Problems for the day before your coding interview- Greedy Algorithms for the day before your Coding Interview- Dynamic Programming for the day before your coding interview- String Algorithms for the day before your Coding Interview- Mathematical Algorithms for the day before your Coding Interview


Python Quick Interview Guide

Python Quick Interview Guide PDF Book Details:
Author: Shyamkant Limaye
Publisher: BPB Publications
ISBN: 9389423309
Size: 29.48 MB
Format: PDF, Kindle
Category : Computers
Languages : en
Pages : 430
View: 1531

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Python Quick Interview Guide PDF

by Shyamkant Limaye, Python Quick Interview Guide Books available in PDF, EPUB, Mobi Format. Download Python Quick Interview Guide books, Quick solutions to frequently asked algorithm and data structure questions. KEY FEATURES ● Learn how to crack the Data structure and Algorithms Code test using the top 75 questions/solutions discussed in the book. ● Refresher on Python data structures and writing clean, actionable python codes. ● Simplified solutions on translating business problems into executable programs and applications. DESCRIPTION Python is the most popular programming language, and hence, there is a huge demand for Python programmers. Even if you have learnt Python or have done projects on AI, you cannot enter the top companies unless you have cleared the Algorithms and data Structure coding test. This book presents 75 most frequently asked coding questions by top companies of the world. It not only focuses on the solution strategy, but also provides you with the working code. This book will equip you with the skills required for developing and analyzing algorithms for various situations. This book teaches you how to measure Time Complexity, it then provides solutions to questions on the Linked list, Stack, Hash table, and Math. Then you can review questions and solutions based on graph theory and application techniques. Towards the end, you will come across coding questions on advanced topics such as Backtracking, Greedy, Divide and Conquer, and Dynamic Programming. After reading this book, you will successfully pass the python interview with high confidence and passion for exploring python in future. WHAT YOU WILL LEARN ● Design an efficient algorithm to solve the problem. ● Learn to use python tricks to make your program competitive. ● Learn to understand and measure time and space complexity. ● Get solutions to questions based on Searching, Sorting, Graphs, DFS, BFS, Backtracking, Dynamic programming. WHO THIS BOOK IS FOR This book will help professionals and beginners clear the Data structures and Algorithms coding test. Basic knowledge of Python and Data Structures is a must. TABLE OF CONTENTS 1. Lists, binary search and strings 2. Linked lists and stacks 3. Hash table and maths 4. Trees and graphs 5. Depth first search 6. Breadth first search 7. Backtracking 8. Greedy and divide and conquer algorithms 9. Dynamic programming


Perlen Der Programmierkunst

Perlen der Programmierkunst  PDF Book Details:
Author: Jon Louis Bentley
Publisher:
ISBN: 9783827317193
Size: 23.75 MB
Format: PDF, ePub, Mobi
Category :
Languages : en
Pages : 285
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Perlen Der Programmierkunst PDF

by Jon Louis Bentley, Perlen Der Programmierkunst Books available in PDF, EPUB, Mobi Format. Download Perlen Der Programmierkunst books,


Think Like A Programmer Deutsche Ausgabe

Think Like a Programmer   Deutsche Ausgabe PDF Book Details:
Author: V. Anton Spraul
Publisher: MITP-Verlags GmbH & Co. KG
ISBN: 3826692780
Size: 54.61 MB
Format: PDF, Docs
Category : Computers
Languages : de
Pages : 304
View: 3988

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Think Like A Programmer Deutsche Ausgabe PDF

by V. Anton Spraul, Think Like A Programmer Deutsche Ausgabe Books available in PDF, EPUB, Mobi Format. Download Think Like A Programmer Deutsche Ausgabe books, Typische Programmieraufgaben kreativ lösen am Beispiel von C++ Von der Aufgabe zur Lösung – so gehen Sie vor Probleme analysieren und schrittweise bearbeiten Systematisches Vorgehen lernen und anwenden Aus dem Inhalt: Strategien zur Problemlösung Eingabeverarbeitung Statusverfolgung Arrays Zeiger und dynamische Speicherverwaltung Klassen Rekursion Wiederverwendung von Code Rekursive und iterative Programmierung Denken wie ein Programmierer Die Herausforderung beim Programmieren besteht nicht im Erlernen der Syntax einer bestimmten Sprache, sondern in der Fähigkeit, auf kreative Art Probleme zu lösen. In diesem einzigartigen Buch widmet sich der Autor V. Anton Spraul genau jenen Fähigkeiten, die in normalen Lehrbüchern eher nicht behandelt werden: die Fähigkeit, wie ein Programmierer zu denken und Aufgaben zu lösen. In den einzelnen Kapiteln behandelt er jeweils verschiedene Programmierkonzepte wie beispielsweise Klassen, Zeiger und Rekursion, und fordert den Leser mit erweiterbaren Übungen zur praktischen Anwendung des Gelernten auf. Sie lernen unter anderem: Probleme in diskrete Einzelteile zerlegen, die sich leichter lösen lassen Funktionen, Klassen und Bibliotheken möglichst effizient nutzen und wiederholt verwenden die perfekte Datenstruktur für eine Aufgabenstellung auswählen anspruchsvollere Programmiertechniken wie Rekursion und dynamischen Speicher einsetzen Ihre Gendanken ordnen und Strategien entwickeln, um bestimmte Problemkategorien in Angriff zu nehmen Die Beispiele im Buch werden mit C++ gelöst, die dargestellten kreativen Problemlösungskonzepte gehen aber weit über die einzelnen Programmiersprachen und oft sogar über den Bereich der Informatik hinaus. Denn wie die fähigsten Programmierer wissen, handelt es sich beim Schreiben herausragender Quelltexte um kreative Kunst und der erste Schritt auf dem Weg zum eigenen Meisterwerk besteht darin, wie ein Programmierer zu denken. Über den Autor: V. Anton Spraul hat über 15 Jahre lang Vorlesungen über die Grundlagen der Programmierung und Informatik gehalten. In diesem Buch fasst er die von ihm dabei perfektionierten Verfahren zusammen. Er ist auch Autor von »Computer Science Made Simple«.