Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Chapter 1, Problem 1.19RQ
Program Plan Intro
Discussion about phases of sdlcin which
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Explian this C program code.
#include <stdio.h>
void binary(unsigned int n) {
if (n /2!=0) {
binary(n /2);
}
printf("%d", n %2);
}
int main() {
unsignedint number =33777;
unsignedchar character ='X';
printf("Number: %u\n", number);
printf("Binary: ");
binary(number);
printf("\nDecimal: %u\nHexadecimal: 0x%X\n\n", number, number);
printf("Character: %c\n", character);
printf("ASCII Binary: ");
binary(character);
printf("\nASCII Decimal: %u\nASCII Hexadecimal: 0x%X\n", character, character);
return0;
}
Design a dynamic programming algorithm for the Longest Alternating Subsequence problem
described below:
Input: A sequence of n integers
Output: The length of the longest subsequence where the numbers alternate between being larger and
smaller than their predecessor
The algorithm must take O(n²) time. You must also write and explain the recurrence.
Example 1:
Input: [3, 5, 4, 1, 3, 6, 5, 7, 3, 4]
Output: 8 ([3, 5, 4, 6, 5, 7, 3, 4])
Example 2:
Input: [4,7,2,5,8, 3, 8, 0, 4, 7, 8]
Output: 8 ([4, 7, 2, 5, 3, 8, 0,4])
(Take your time with this for the subproblem for this one)
Design a dynamic programming algorithm for the Coin-change problem described below:
Input: An amount of money C and a set of n possible coin values with an unlimited supply of each
kind of coin.
Output: The smallest number of coins that add up to C exactly, or output that no such set exists.
The algorithm must take O(n C) time. You must also write and explain the recurrence.
Example 1:
Input: C24, Coin values = = [1, 5, 10, 25, 50]
Output: 6 (since 24 = 10+ 10+1+1 +1 + 1)
Example 2:
Input: C = 86, Coin values = [1, 5, 6, 23, 35, 46, 50]
Output: 2 (since 86 = 46+35+5)
Chapter 1 Solutions
Modern Database Management
Ch. 1 - Prob. 1.1RQCh. 1 - Prob. 1.2RQCh. 1 - Prob. 1.3RQCh. 1 - Prob. 1.4RQCh. 1 - Prob. 1.5RQCh. 1 - Prob. 1.6RQCh. 1 - Prob. 1.7RQCh. 1 - How are relationships between tables expressed in...Ch. 1 - What does the term data independence mean, and why...Ch. 1 - Prob. 1.10RQ
Ch. 1 - Prob. 1.11RQCh. 1 - Prob. 1.12RQCh. 1 - Prob. 1.13RQCh. 1 - Prob. 1.14RQCh. 1 - Prob. 1.15RQCh. 1 - Prob. 1.16RQCh. 1 - Prob. 1.17RQCh. 1 - Prob. 1.18RQCh. 1 - Prob. 1.19RQCh. 1 - Prob. 1.20RQCh. 1 - Prob. 1.21RQCh. 1 - Prob. 1.22RQCh. 1 - Prob. 1.23RQCh. 1 - Prob. 1.24RQCh. 1 - Prob. 1.25RQCh. 1 - Prob. 1.26RQCh. 1 - Prob. 1.27PAECh. 1 - Prob. 1.28PAECh. 1 - Prob. 1.29PAECh. 1 - Prob. 1.30PAECh. 1 - Prob. 1.31PAECh. 1 - Prob. 1.32PAECh. 1 - Great Lakes Insurance would like to implement a...Ch. 1 - Figure 1-22 shows an enterprise data model for a...Ch. 1 - Prob. 1.35PAECh. 1 - Prob. 1.36PAECh. 1 - Prob. 1.37PAECh. 1 - Prob. 1.38PAECh. 1 - Prob. 1.39PAECh. 1 - Prob. 1.40PAECh. 1 - Prob. 1.41PAECh. 1 - Prob. 1.42PAECh. 1 - Prob. 1.43PAECh. 1 - Prob. 1.44PAECh. 1 - Consider the project data model shown in Figure...Ch. 1 - Answer the following questions concerning Figures...Ch. 1 - Prob. 1.47PAECh. 1 - Helen Jarvis wants to determine the most important...Ch. 1 - In this chapter, we described four important data...
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