Discovering Computers ©2018: Digital Technology, Data, and Devices
1st Edition
ISBN: 9781337285100
Author: Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Jennifer T. Campbell, Mark Frydenberg
Publisher: Cengage Learning
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Expert Solution & Answer
Chapter 10, Problem 4IR
Explanation of Solution
Guidance from the website:
- Related to cost:
- Some of the dating websites are free to provide dating service.
- Some websites are chargeable during signup process.
- Some websites are come in signup free option.
- When compared to free dating websites, chargeable websites are worth as it provides safety communications with friends.
- Lack of transparency:
- Some people, who are using dating websites, just had put whatever details they want in their profile...
Explanation of Solution
Behaviors that indicate dangerous situation:
- When the people asking for phone numbers and last name.
- If the people entered their phone number in their site, then they harassed with unwanted phone calls...
Explanation of Solution
The place where the members can know others reputations:
- The people can know others reputations by seeing the video containing opponent’s attitude, behavior and relationship with other peoples.
- This video can be viewed in people’s profile page.
- Some dating websites or applications having this feature...
Explanation of Solution
Two ways of reporting inappropriate behavior:
- Spam: Spreading the information of inappropriate behavior over the internet to a large number of internet users...
Expert Solution & Answer
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Students have asked these similar questions
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 10 Solutions
Discovering Computers ©2018: Digital Technology, Data, and Devices
Ch. 10 - Prob. 1SGCh. 10 - Prob. 2SGCh. 10 - Prob. 3SGCh. 10 - Prob. 4SGCh. 10 - Prob. 5SGCh. 10 - Prob. 6SGCh. 10 - Prob. 7SGCh. 10 - Prob. 8SGCh. 10 - Prob. 9SGCh. 10 - Prob. 10SG
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