Question

Write a C++ segment of code in main () that reads a file called "numbers txt". You should cout the range of the numbers in the file, for example if the file contained "3.5 1.8 15" the range of numbers is 15 - 1.8 = 13.2.

Answer 1

------------------------------------------------------------------- Program ------------------------------------------------------------------

#include <iomanip>
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
//Locate numbers.txt
ifstream f1 ("numbers.txt", ios::in);

int num, largest = 0, smallest=9999999;

//Read file
cout<<"\n\nReading numbers.txt \n\n";
for( int i = 0; i < 20; i++)
{
   // Extract each int into num variable
       f1>> num;
      
       // If the number is greater than current largest assign num to largest  
       if (num > largest)
       {
           largest = num;
       }
       // If the number is smaller than current smallest assign num to smallest
       if (num < smallest)
       {
           smallest = num;
       }      
   }
  
cout << "Largest: " << largest;
cout << "\nSmallest: " << smallest;
  
   // Print range
   cout<< "\n\nRange : "<< (largest-smallest);
   //close File
f1.close();
return 0;
}

-------------------------------------------- numbers.txt ------------------------------------------------------------

6 13 16 17 11 5 18 9 10 20

------------------------------------------- Sample Output -------------------------------------------------------

Reading numbers.txt

Largest: 20
Smallest: 5

Range : 15
--------------------------------
Process exited after 0.1266 seconds with return value 0
Press any key to continue . . .

Reading numbers.txt Largest 20 Smallest: 5 ange 15 Process exited after 0.09612 seconds with return value E Press any key to continue . -.