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neonofarm [45]
3 years ago
9

What is the output of the following Python statements? def recurse(a): if (a == 0): print(a) else: recurse(a) recurse(0)

Computers and Technology
1 answer:
FrozenT [24]3 years ago
5 0

Answer:

d) 0 1 1 2

The above piece of code prints the Fibonacci series.

Explanation:

def a(n):

   if n == 0:

       return 0

   elif n == 1:

       return 1

   else:

       return a(n-1)+a(n-2)

for i in range(0,4):

   print(a(i),end=" ")

You might be interested in
Security administrators can use either the PowerShell command line or the graphical user interface of the Server Managerâs Roles
AleksAgata [21]

Answer:

Security administrator can use power shell command line or the GUI to "Promote a windows server to a domain controller".

Explanation:

A domain controller is a type of server that is used to authenticate the access of the system to the users to resources of windows. Power shell is an important tool that is used to perform different tasks of administration. We can user this tool as security administrator to Promote a Windows server to a domain controller.

3 0
3 years ago
Just five types of pointing device,list
posledela

Answer:

five types of pointing devices

Explanation:

Ponting devices

Pointing means point something and the pointing devices are the input /peripheral devices those are used to point the pointer on the screen. We do move cursor on the screen to open the files or any icon.

There are many types of pointing devices but these are quite common which are given below

  1. Computer mouse
  2. Finger on touch screen.
  3. Joystick.
  4. Leap Motion.
  5. Light pen (pen)

1.Mouse

Mouse is most common type of input device that is used for pointing the data on the screen. We press it with our hands and keep pointing the things.

There are three types of mouse

  1. optical mouse
  2. wireless mouse
  3. trackball mouse.

2. Finger on touch screen

In this type of movement the fingers are input devices those we use to see the movement of pointer on the screen and this is most common in this century.

3.Joystick.

Joystick is another input device to point the cursor but it is mostly used in games. Children can use it smartly so it is inculcated in games usually.

4. Leap Motion

The Leap Motion (LM) controller is a latest 3D sensing device for hand posture interaction with a computer. It is having the capability sense the location of the fingers of the hands, as well as the palm position.

5.Light Pen

this is another pointing device which is mostly used to highlight and select the data on the screen.

Note: All of these above pointing devices are most common used now a days. These devices are having new  conventions day by day for the ease of user. This era is basically the era of IT ,so the use of computer must be so easy and conventional for the user so, the innovations and improvement in such devices is made side by side.

3 0
3 years ago
What is a curson?
sp2606 [1]

Answer:

C. Blinking vertical line on your screen

Explanation:

A cursor is tha blinking vertical line on your screen.

5 0
3 years ago
1. Write a telephone lookup program. Read a data set of 1, 000 names and telephone numbers from a file that contains the numbers
Fed [463]

Answer:

Kindly note that, you're to replace "at" with shift 2 as the brainly text editor can't take the symbol

Explanation:

PhoneLookup.java

import java.io.FileReader;

import java.io.IOException;

import java.util.Scanner;

public class PhoneLookup

{

  public static void main(String[] args) throws IOException

  {

     Scanner in = new Scanner(System.in);

     System.out.println("Enter the name of the phonebook file: ");

     String fileName = in.nextLine();

     LookupTable table = new LookupTable();

     FileReader reader = new FileReader(fileName);

     table.read(new Scanner(reader));

   

     boolean more = true;

     while (more)

     {

        System.out.println("Lookup N)ame, P)hone number, Q)uit?");

        String cmd = in.nextLine();

       

        if (cmd.equalsIgnoreCase("Q"))

           more = false;

        else if (cmd.equalsIgnoreCase("N"))

        {

           System.out.println("Enter name:");

           String n = in.nextLine();

           System.out.println("Phone number: " + table.lookup(n));

        }

        else if (cmd.equalsIgnoreCase("P"))

        {

           System.out.println("Enter phone number:");

           String n = in.nextLine();

           System.out.println("Name: " + table.reverseLookup(n));

        }

     }

  }

}

LookupTable.java

import java.util.ArrayList;

import java.util.Collections;

import java.util.Scanner;

/**

  A table for lookups and reverse lookups

*/

public class LookupTable

{

  private ArrayList<Item> people;

  /**

     Constructs a LookupTable object.

  */

  public LookupTable()

  {

      people = new ArrayList<Item>();

  }

  /**

     Reads key/value pairs.

     "at"param in the scanner for reading the input

  */

  public void read(Scanner in)

  {

     while(in.hasNext()){

         String name = in.nextLine();

         String number = in.nextLine();

         people.add(new Item(name, number));

     }

  }

  /**

     Looks up an item in the table.

     "at"param k the key to find

     "at"return the value with the given key, or null if no

     such item was found.

  */

  public String lookup(String k)

  {

     String output = null;

     for(Item item: people){

         if(k.equals(item.getName())){

             output = item.getNumber();

         }

     }

     return output;

  }

  /**

     Looks up an item in the table.

     "at"param v the value to find

     "at"return the key with the given value, or null if no

     such item was found.

  */

  public String reverseLookup(String v)

  {

      String output = null;

         for(Item item: people){

             if(v.equals(item.getNumber())){

                 output = item.getName();

             }

         }

         return output;

  }

}

Item.java

public class Item {

  private String name, number;

 

  public Item(String aName, String aNumber){

      name = aName;

      number = aNumber;

  }

 

  public String getName(){

      return name;

  }

 

  public String getNumber(){

      return number;

  }

}

input.txt

Abbott, Amy

408-924-1669

Abeyta, Ric

408-924-2185

Abrams, Arthur

408-924-6120

Abriam-Yago, Kathy

408-924-3159

Accardo, Dan

408-924-2236

Acevedo, Elvira

408-924-5200

Acevedo, Gloria

408-924-6556

Achtenhagen, Stephen

408-924-3522

Kindly check the attached output image below.

3 0
3 years ago
You are working for the census bureau and you need to write a program in C to do the following: a) count the number of people in
valina [46]

Answer:

See explaination

Explanation:

#include<iostream>

#include<stdio.h>

#include<conio.h>

#include<math.h>

using namespace std;

void main()

{

int RandomData[]={10,5,20,45,20,66,25,31,20,70}; //Random Data

int infant=0,young=0,middle=0,old=0,older=0; //To store count

int n,freq,count=0,high=0; //to store mode and other

double stdDev,mean,sum=0; //to store stdDev mean and sum

for(int i=0;i<(sizeof(RandomData)/sizeof(RandomData[0]));i++) //loop to count

{

if(RandomData[i]>0&&RandomData[i]<=18)

infant++;

else if(RandomData[i]>18&&RandomData[i]<=29)

young++;

else if(RandomData[i]>29&&RandomData[i]<=50)

middle++;

else if(RandomData[i]>50&&RandomData[i]<=69)

old++;

else if(RandomData[i]>69)

older++;

}

double first=0,sec=0; //to store result of stdDev formula first and second part

for(int i=0;i<(sizeof(RandomData)/sizeof(RandomData[0]));i++) //loop to calculate mean mode and stdDev

{

n=RandomData[i];

count=0;

for(int j=0;j<(sizeof(RandomData)/sizeof(RandomData[0]));j++)

{

if(n==RandomData[j])

count++;

}

if(high<count)

{

freq=RandomData[i];

high=count;

}

first+=(pow((RandomData[i]),2)/(sizeof(RandomData)/sizeof(RandomData[0])));

sec+=RandomData[i]/(sizeof(RandomData)/sizeof(RandomData[0]));

sum+=RandomData[i];

}

mean=sum/(sizeof(RandomData)/sizeof(RandomData[0]));

stdDev=sqrt(first-pow((sec),2));

/*------Printing Result-----*/

cout<<"\nCount:\nInfant: "<<infant<<"\nYoung: "<<young<<"\nMiddle: "<<middle;

cout<<"\nOld: "<<old<<"\nOlder: "<<older;

cout<<"\n\nMean: "<<mean<<"\nMode: "<<freq<<"\nStandard Deviation: "<<stdDev;

/*-----------XXXX-------------*/

getch();

}

8 0
3 years ago
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