// Program Q4.19.cpp: This program uses a while statement to determine and print the 2 largest of 10 numbers entered by a user from the keyboard.

#include <iostream>
// Declare using declarations
using std::cout;
using std::cin;
using std::endl;

int main() // Begin program execution
{
// Initialize variables
int counter = 1;
int num;
int largest = 0;
int seclargest = 0;

while ( counter <= 10 ) // Begin 1st while loop
{
     cout << "Please enter a number from the keyboard.\n" << endl; // Prompt user to enter a number from the keyboard
    
     cin >> num; // Read in number entered by user
    
     cout << "\n"; // Insert blank line
    
     if ( num > largest ) // Begin loop to determine the largest of 10 numbers entered by user from the keyboard
          {
    largest = num;
          }    
     else
          {
                    while ( counter <= 8 )
    {    
    if ( num > seclargest )
    
                         seclargest = num;

    } // End if/else
          } // End 2nd while
} // End 1st while

cout << "\nThe largest of the numbers entered is " << largest << ".\n" << endl; // Display the second largest number entered by user
    
cout << "\nThe second largest of the numbers entered is " << seclargest << ".\n" << endl; // Display the second largest number entered by user
    
counter++; // Advance counter by 1 for each loop
    
return 0; // Terminate program successfully

} // End main and program execution

while ( counter <= 10 ) // Begin 1st while loop
{
     cout << "Please enter a number from the keyboard.\n" << endl; // Prompt user to enter a number from the keyboard
    
     cin >> num; // Read in number entered by user
    
     cout << "\n"; // Insert blank line
    
     if ( num > largest ) // Begin loop to determine the largest of 10 numbers entered by user from the keyboard
          {
    seclargest = largest;
    largest = num;
    
          }    
     else if ( num > seclargest )
        seclargest = num;
        
    counter++;
}