Question

For this assignment, you are to write a program that does the following:

 read temperatures from a file name data.txt into an array, and

 after reading all the temperatures, output the following to the monitor: the average temperature, the minimum temperature, and the total number of temperatures read.

In addition, the program must use the following functions:

//precondition: fileName is name of the file to open, inFile is the input file

//postcondition: inFile is opened. If inFile cannot be opened, a message is

// written to cout and the program exits

// example filename: “listOfTemperatures.txt”

void openFile(string filename, ifstream& inFile);

//precondition: a temperatures array, size is a’s length

//postcondition: returns average temperature float calculateAverage(float a[], int size)

//precondition: a temperatures array, size is a’s length

//postcondition: returns minimum temperature float calculateMin(float a[], int size)

Answer 1

Points to consider

1. Printing Average: traversing the list to find the total and then dividing by size.
2. Printing minimum: traversing through the list and finding the minimum.

Code

float calculateAverage(float a[], int size)
{
   float total = 0;
   for(int i = 0;i<size;i++)
   {
       total += a[i];
   }
   return total/a[i];
}

float calculateMin(float a[], int size)
{
   float min = a[0];
   for(int i = 0;i<size;i++)
   {
       if(min > a[i])
       {
           min = a[i];
       }
   }
   return min;
}

I am updating the solution for the third function, as it is little big to implement.

Thanks