Answer:
We should read the file number numbers. in and add up to 10 positive numbers or until there is a negative number.
Explanation:
#include <iostream>
#include <fstream>
using namespace std;
int main()
{ int sum=0,count=0; //Variables for storing sum and counts of positive numbers
string filename("numbers.in"); //Name of the file to read from
int number; //The numbers in the file
ifstream input_file(filename);
if (!input_file.is_open()) {
cerr << "Could not open the file - '"<< filename << "'" << endl;//If file could not be opened, displaying error message
return EXIT_FAILURE; //Returning unsuccessful termination
}
while (input_file >> number) //Reading all numbers from file
{
if(number>0 && count<10) //If number is is a positive number and it is not the 11th or greater element of file
{
sum+=number; //Adding numbers
count++; //Increasing the count
}
else //Otherwise we will break out of the loop
{
break;
}
}
if(count<10) //If count is less than 10, then displaying an appropriate message on the console
{
cout<<"There are " <<count<<" positive numbers"<<endl<<"The sum of the positive numbers is: "<<sum<<endl;
}
else //Otherwise there were more than 10 positive number, then displaying an appropriate message on the console
{
cout<<"There are at least " <<count<<" positive numbers"<<endl<<"The sum of the positive numbers is: "<<sum<<endl;
}
input_file.close(); //Closing file
return EXIT_SUCCESS; //indicates successful program execution status
}
