eBook - ePub

Dynamic Programming for Coding Interviews

Name: Dynamic Programming for Coding Interviews
ISBN: 9781946556707

A Bottom-Up approach to problem solving

Meenakshi,

Kamal Rawat,

English
ePUB (mobile friendly)
Available on iOS & Android

eBook - ePub

Dynamic Programming for Coding Interviews

A Bottom-Up approach to problem solving

Meenakshi,

Kamal Rawat,

About this book

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.

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Yes, you can access Dynamic Programming for Coding Interviews by Meenakshi,Kamal Rawat in PDF and/or ePUB format, as well as other popular books in Computer Science & Programming Algorithms. We have over one million books available in our catalogue for you to explore.