Why do many administrators choose to use a command line interface on a Linux server?

Determine the number of character comparisons made by the brute-force algorithm in searching for the pattern GANDHI in the text

leonid [27]

Answer:

Total number of character comparison = 43

Explanation:

Using the Brute force algorithm

The string of n characters is known as text, and the string of m characters is known as the pattern.

From the given information:

The text (n)=THERE_IS_MORE_TO_LIFE_THAN_INCREASING_ITS_SPEED

The pattern (m) = GANDHI

The total no of characters that we have in the text = 47

The total number of characters in pattern = 6

For a brute force algorithm;

Since; the first character of the pattern does not exist in the text, then the number of trials made can be attempted can be expressed as = n – m + 1

= 47 – 6 + 1

= 47 – 5

= 42

Thus; the algorithm will attempt the trial 42 times.

Now, for loop in the algorithm to run 42 times, the G in the pattern will have to align against the for T in the text, and in the last case, it will be aligned against the last space.

On each attempted trial, the algorithm will make one unsuccessful comparison.

However, at the trial at which the G in the pattern Is aligned with the G in the text, there will be two successful comparisons.

Hence, we can calculate the total number of character comparison as follows:

Total number of character comparison = $\mathbf{\bigg ( ( 42 - (no. \ of \ failed \ comparison) ) \times 1 + (1 \times ( Two \ successful \ comparisons) ) \bigg ) }$

Total number of character comparison = ( (( 42 – 1) × 1 ) + ( 1 × 2) )

Total number of character comparison = 41 + 2

Total number of character comparison = 43

3 0

3 years ago

You would like the user of a program to enter a customer’s last name. Write a statement thaUse the variables k, d, and s so that

mojhsa [17]

Answer:

1st question:

Use the variables k, d, and s so that they can read three different values from standard input an integer, a float, and a string respectively. On one line, print these variables in reverse order with exactly one space in between each. On a second line, print them in the original order with one space in between them.

Solution:

In Python:

k = input() #prompts user to input value of k i.e. integer value

d = input() #prompts user to input value of d i.e. float value

s = input() #prompts user to input value of s i.e. a string

print (s, d, k) #displays these variable values in reverse order

print (k, d, s)#displays these variable values in original order

In C++:

#include <iostream> // to use input output functions

using namespace std; //to identify objects like cin cout

int main() { //start of main function

int k; //declare int type variable to store an integer value

float d; // declare float type variable to store a float value

string s; // declare string type variable to store an integer value

cin >> k >> d >> s; //reads the value of k, d and s

cout << s << " " << d << " " << k << endl; //displays these variables values in reverse order

cout << k << " " << d << " " << s << endl; } // displays these variable values in original order

Explanation:

2nd question:

You would like the user of a program to enter a customer’s last name. Write a statement that asks user "Last Name:" and assigns input to a string variable called last_name.

Solution:

In Python:

last_name = input("Last Name:")

# input function is used to accept input from user and assign the input value to last_name variable

In C++:

string last_name; //declares a string type variable named last_name

cout<<"Last Name: "; // prompts user to enter last name by displaying this message Last Name:

cin>>last_name; // reads and assigns the input value to string variable last_name

The programs alongwith their outputs are attached.

6 0

4 years ago

According to Alisa Miller, why does news focus so heavily on celebrities?

kirill115 [55]

Answer:

one, because the consumers of news are no longer interested in worlwide events, but rather on events that are happening close to them, and in a form affect them directly, and second, because it is cheaper to cover gossip, and it generates more profitability for media broadcasters, than speaking about events that have no impact on people´s interests.

3 0

3 years ago

Types of email resources. Examples

denis23 [38]

Newsletter emails
Milestone emails
Welcome emails
Review request emails

Hope this helps!

8 0

3 years ago

Why linked list is better than an array?

katrin [286]

In conclusion there are many different data structures. Each data structure has strengths and weaknesses which affect performance depending on the task. Today, we explored two data structures: arrays and linked lists. Arrays allow random access and require less memory per element (do not need space for pointers) while lacking efficiency for insertion/deletion operations and memory allocation. On the contrary, linked lists are dynamic and have faster insertion/deletion time complexities. However, linked list have a slower search time and pointers require additional memory per element in the list. Figure 10 below summarizes the strength and weakness of arrays and linked lists.

8 0

3 years ago