Chapter 3: Arrays and Data Structures

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Questions and Answers

What is a major limitation of experimental studies of running times?

They are too simple to implement.
They can be done only on a limited set of test inputs. (correct)
They are only useful for analyzing small algorithms.
They require a deep understanding of hardware and software environments.

What is a challenge when comparing the experimental running times of two algorithms?

The algorithms are too similar.
The experiments were performed in different hardware and software environments. (correct)
The algorithms are too complex.
The experiments are too time-consuming.

What is the most time-consuming aspect of performing an experimental analysis of an algorithm?

Implementing and executing the algorithm. (correct)
Choosing the test inputs.
Analyzing the data.
Designing the experiment.

What is the ideal goal of an analysis tool for running times?

To avoid performing experiments. (C) Signup and view all the answers

What does the proposed methodology aim to associate with each algorithm?

A function f (n) that characterizes the running time of the algorithm as a function of the input size n. (D) Signup and view all the answers

What is a benefit of the proposed methodology?

It allows us to evaluate the relative efficiency of any two algorithms in a way that is independent from the hardware and software environment. (C) Signup and view all the answers

What is a characteristic of the proposed methodology?

It can be performed by studying a high-level description of the algorithm without actually implementing it or running experiments on it. (D) Signup and view all the answers