Question

Question: In C++

Write a correct and complete C++ program th... Bookmark In C++ Write a correct and complete C++ program that inputs 20 integer values from the user and performs three calculations. In the main function, input the values from the user. As part of your answer, write a sub-function, named calcAvg (), which takes two arguments and returns the average of all the integers. Also write another sub-function, named reverseArray (), which takes two arguments and reverses the order of the numbers. That is, for example, if the input numbers were 5,3,7, then reverseArry would change the order to 7,3 ,5. Include a final sub-function named printArray (), which takes two arguments and prints the array. Assumptions to be made: you do not have to check errors in the input values, i.e., all input values can be stored as type int.

Please Show the output

Answer 1

Here is the code for you:

#include <iostream>
using namespace std;
//Include a final sub-function named printArray (), which takes two arguments and prints the array.
void printArray(int numbers[], int size)
{
for(int i = 0; i < 20; i++)
cout<<numbers[i]<<" ";
cout<<endl;
}
//Write another sub-function, named reverseArray (), which takes two arguments and reverses the order of the numbers.
void reverseArray(int numbers[], int size)
{
for(int i = 0; i < size/2; i++)
{
int temp = numbers[i];
numbers[i] = numbers[size-i-1];
numbers[size-i-1] = temp;
}
}
//Write a sub-function, named calcAvg (), which takes two arguments and returns the average of all the integers.
double calcAvg(int numbers[], int size)
{
double sum = 0.0;
for(int i = 0; i < size; i++)
sum += numbers[i];
return sum / size;
}
int main()
{
//In the main function, input the values from the user.
int numbers[20];
for(int i = 0; i < 20; i++)
{
cout<<"Enter #"<<i+1<<": ";
cin>>numbers[i];
}
printArray(numbers, 20);
cout<<"The average of the elements in the array are: "<<calcAvg(numbers, 20)<<endl;
reverseArray(numbers, 20);
printArray(numbers, 20);
}

And the output screenshot is: