Download Data Structures: A Pseudocode Approach with C (2nd Edition) by Behrouz A. Forouzan, Richard F. Gilberg PDF

By Behrouz A. Forouzan, Richard F. Gilberg

This moment version expands upon the forged, useful origin confirmed within the first variation of the textual content. a brand new four-part organizational constitution raises the pliability of the textual content, and all fabric is gifted in an easy demeanour followed by means of an array of examples and visible diagrams.

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Extra resources for Data Structures: A Pseudocode Approach with C (2nd Edition)

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20. Three students wrote algorithms for the same problem. They tested the three algorithms with two sets of data as shown below: a. Case 1: n = 10 •Run time for student 1: 1 •Run time for student 2: 1/100 •Run time for student 3: 1/1000 b. Case 2: n = 100 •Run time for student 1: 10 •Run time for student 2: 1 •Run time for student 3: 1 What is the efficiency for each algorithm? Which is the best? Which is the worst? What is the minimum number of test cases (n) in which the best algorithm has the best run time?

A knowledge of data structures is one of those tools. When we first started programming, there were no abstract data types. If we wanted to read a file, we wrote the code to read the physical file device. It did not take long to realize that we were writing the same code over and over again. So we created what is known today as an abstract data type (ADT). We wrote the code to read a file and placed it in a library for all programmers to use. This concept is found in modern languages today. The code to read the keyboard is an ADT.

Iterative Solution Let’s write an algorithm to solve the factorial problem iteratively. This solution usually involves using a loop such as the one shown in Algorithm 2-1. ALGORITHM 2-1 Iterative Factorial Algorithm Algorithm iterativeFactorial (n) Calculates the factorial of a number using a loop. Pre n is the number to be raised factorially Post n! is returned 1 set i to 1 2 set factN to 1 3 loop (i <= n) 1 set factN to factN * i 2 increment i 4 end loop 5 return factN end iterativeFactorial Recursive Solution Now let’s write the same algorithm recursively.

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