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Need a completed C++ program for each of the following pseudocodes: 2a. //initialize array arr[20] index = 0 for 1 to 20 //get user input value into array arr[index] = input index = index + 1 //calculate average avg = sum(arr) / 20 i = 0 // iterate for 20 numbers for 1 to 20 //print each number's difference print avg - arr[i] i = i+1   2b. //initialize array arr[20] index = 0 // loop for 20 integers for 1 to 20 //get user input value into array arr[index] = input index = index + 1 // if user enters -1 exit from loop if input is -1 break //calculate average avg = sum(arr) / arr.length i = 0 // iterate for array length for 1 to arr.length //print each number's difference print avg - arr[i] i = i+1

Need a completed C++ program for each of the following pseudocodes: 2a. //initialize array arr[20] index = 0 for 1 to 20 //get user input value into array arr[index] = input index = index + 1 //calculate average avg = sum(arr) / 20 i = 0 // iterate for 20 numbers for 1 to 20 //print each number's difference print avg - arr[i] i = i+1   2b. //initialize array arr[20] index = 0 // loop for 20 integers for 1 to 20 //get user input value into array arr[index] = input index = index + 1 // if user enters -1 exit from loop if input is -1 break //calculate average avg = sum(arr) / arr.length i = 0 // iterate for array length for 1 to arr.length //print each number's difference print avg - arr[i] i = i+1

Database System Concepts
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
Section: Chapter Questions
Problem 1PE
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Need a completed C++ program for each of the following pseudocodes:

2a.
//initialize array
arr[20]
index = 0
for 1 to 20
//get user input value into array
arr[index] = input
index = index + 1

//calculate average
avg = sum(arr) / 20

i = 0
// iterate for 20 numbers
for 1 to 20
//print each number's difference
print avg - arr[i]
i = i+1

 

2b.
//initialize array
arr[20]
index = 0
// loop for 20 integers
for 1 to 20
//get user input value into array
arr[index] = input
index = index + 1

// if user enters -1 exit from loop
if input is -1
break

//calculate average
avg = sum(arr) / arr.length

i = 0
// iterate for array length
for 1 to arr.length
//print each number's difference
print avg - arr[i]
i = i+1

Expert Solution
Step 1

C++ program for ( 2a. )

 

#include<iostream>
using namespace std;

//2a. complete c++ program
int main() {
    //initialize array
    double arr[20];

    double sum = 0;

    //get user value into array
    for(int index =0; index <20; index++){
      cin >> arr[index];
      sum += arr[index];
    }

    //calculate average
    double avg = sum / 20;

    cout << "\n";

    //iterate for 20 numbers
    for(int i=0; i<20; i++){
      //print each number's difference
      cout << avg - arr[i] << "\n";
    }

    return 0;
}
 
 
Code Image :
 
Computer Science homework question answer, step 1, image 1
 
 
 
Sample Input - Output :
 
Computer Science homework question answer, step 1, image 2
 
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