Question

Use DevC++ to implement a program that can store and output 5 integers, where the user can input its value into an array named arrayValue. The program should implement the following:

1. Calculate the sum and average of the array. (5 points)

2. Output the content (value) that stored in the array of five elements. (10 points)

3. Continue to ask the user to store for storing data into another array(store and output 5 integers). (10 points)

Prelude to Programming (6th Edition)

Answer 1

Below is the code in C++ for the above question:

#include<iostream>
using namespace std;

int main(){
   // integer array of size 5
   int arrayValue[5];
   // infinite loop
   while(1)
   {
       // prompts the user to enter the elements of array.
       cout << "Enter the elements of array: " << endl;
       for(int i=0;i<5;i++){
           // getting user input
           cin >> arrayValue[i];
       }
      
       // variable to calculate sum and average
       int sum = 0;
       double average;
       // calculating sum and displaying the elements of array
       for(int i=0;i<5;i++){
           sum += arrayValue[i];
           cout << arrayValue[i] << " ";
       }
       // calculating average
       average = sum/5.0;
       // displaying sum and average
       cout << "\nSum = " << sum << "\nAverage = " << average;
      
       // getting user choice to continue or not.
       char choice;
       cout << "\nDo you want to continue (y/n)? ";
       cin >> choice;
      
       if(choice == 'n')
           break;
   }
   return 0;
}

Refer to the screenshot attached below to better understand the code and indentation:

{ 1 #include<iostream> 2 using namespace std; 3 4 int main() { 5 // integer array of size 5 6 int arrayValue[5]; 7 // infinite loop while(1) 99 19 // prompts the user to enter the elements of array. 11 cout << "Enter the elements of array: << endl; 12 for(int i=0;i<5;i++) { 13 // getting user input 14 cin >> arrayValue[i]; 15 } 16 17 // variable to calculate sum and average 18 int sum = 0; 19 double average; 20 // calculating sum and displaying the elements of array 21 for(int i=0;i<5;i++){ 22 sum += arrayValue[i]; 23 cout << arrayValue[i] << 24 25 // calculating average 26 average = sum/5.0; 27 // displaying sum and average 28 cout << "\nSum = " << sum << "\nAverage << average; 29 30 1/ getting user choice to continue or not. 31 char choice; 32 cout << "\nDo you want to continue (y/n)? "; 33 cin >> choice; 34 35 if (choice == 'n') 36 break; 37 38 return 0; 39 }


Output:

= Enter the elements of array: 5 6 1 2 В 5 6 1 2 3 Sum m = 17 Average 3.4 Do you want to continue (y/n)? y Enter the elements of array: 8 4 6 5 2 8 4 6 5 2 Sum = 25 Average = 5 Do you want to continue (y/n)? n


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