Write a program,that will read monthly sales into a dynamically allocated array.

Question

Write a program,that will read monthly sales into a dynamically allocated array. The program will input the size of the array from the user. It will call a function that will find the yearly sum (the sum of all thesales). It will also call another function that will find the average.

#include<iostream>

using namespace std;

void yearTotal(float * sales, int saleSize, float & sum); // function that calculates yearlytotal

void yearAverage(float sum, int saleSize, float& avg);

// function that calculates average

int main()

{

// Complete program here

}

a) Use the sample run test data below to test your program.

b) Make sure your program handles 0 sales being entered, and negative sales amounts.

Explanation / Answer

PLEASE REFER BELOW CODE

#include<iostream>

using namespace std;

void yearTotal(float * sales, int saleSize, float & sum) // function that calculates yearlytotal
{
sum = 0.0;
for(int i = 0; i < saleSize; i++)
sum += sales[i];

}
void yearAverage(float sum, int saleSize, float& avg)
{
avg = sum / saleSize;
}

int main()
{
int saleSize;
float *sales,sum,avg;
cout<<"Enter the array size : ";
cin>>saleSize;

if(saleSize == 0)
{
cout<<"Cannot create zero size array"<<endl;
return 0;
}
else
{
sales = new float[saleSize];
cout<<"Enter your data now :"<<endl<<endl;
for(int i = 0; i < saleSize; i++)
{
cout<<"Enter "<<(i+1)<<" Monthly data ";
cin>>sales[i];
}
}
yearTotal(sales, saleSize, sum);
yearAverage(sum, saleSize, avg);
cout<<"year Total = "<<sum<<endl;
cout<<"Average = "<<avg;
return 0;
}

PLEASE REFER BELOW OUTPUT

Enter the array size : 6
Enter your data now :

Enter 1 Monthly data 20
Enter 2 Monthly data 10
Enter 3 Monthly data 30
Enter 4 Monthly data 45
Enter 5 Monthly data 21
Enter 6 Monthly data 40
year Total = 166
Average = 27.6667
Process returned 0 (0x0) execution time : 19.831 s
Press any key to continue.

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