Find the domain and range of the following function f. It assigns to each string of bits (that is, of 0s and 1s) the number equal to twice of the number of zeros in that string. For example f(011001010101010) = 16.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Answer and study the questions below. Final Exam is on May 3, 2021.

1. Find the domain and range of the following function f. It assigns to
each string of bits (that is, of 0s and 1s) the number equal to twice of the
number of zeros in that string. For example f(011001010101010) = 16.

2. Determine whether or not the function f : Z × Z ! Z is onto, if f((m, n)) =m-n.

3. Give an explicit formula for a function from the set of all integers to
the set of positive integers that is onto but is not one-to-one.

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