Problems for the day before your coding interview: 11 (Day before Coding Interview [DCI]: CODING INTERVIEW PATTERNS) - Tapa blanda

Sinopsis

If you have an upcoming coding interview, this is a must for you to read this book 💪 and get prepared to tackle ALGORITHM and DATA STRUCTURE problems in a day. In this book, we have solved insightful algorithmic problems and discussed some of the best insights to drive you into the problem solving mindset.Being in a mindset required for an upcoming event is like winning half the battle.In this book, we begin with an easy problem and go on to explore some tough and insightful problems. The first problem we presented is to delete minimum number of digits in a number to make it a perfect square. This might seem to be a simple problem but the insights involved in solving this is widely applicable across various Algorithmic problems. This problem is solved in time complexity of O(N ^ (1/3) x logN x logN) (think how?)Moreover, in solving the above problem, we have learnt how to generate all combinations/ subsets of a set efficiently. In this line, we have covered other ideas related to combination and permutation generation in other problems in this book.Some of the ideas we covered in the other problems are:* Augmented data structures: How modifying a data structure can improve the complexity greatly.* How a single data structure can have multiple states? and algorithms to interchange them* Concepts related to string comparison and searching (MUST READ + VERY IMPORTANT)* Basic insightful ideas in Number theory and solved a couple of problems related to it* Understanding how number of operations can be reduced greatly without impacting time complexity.* Insightful understanding and analysis of Heap's algorithm for permutation generation (VERY IMPORTANT + RARE)* These problems have covered domains like Graph Theory, Dynamic Programming, Greedy Algorithms, Number Theory, Divide and Conquer and much more.In short, we have carefully chosen the problems to give you idea of:* Basic yet widely asked concepts like combination and permutation generation, forming Dynamic Programming solutions, applying greedy algorithms* Doing a detailed complexity analysis* Proceed in solving the problem in steps and understand deeply why the solution worksThis book has been 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 Tokyo Institute of Technology.Read this book now and ace your upcoming coding interview 💪

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