// Fig. 4.16: fig04_16.cpp
// Examination-results problem: Nested control statements.
#include <iostream>
using namespace std;

int main()
{
   // initializing variables in declarations
   unsigned int passes = 0; // number of passes
   unsigned int failures = 0; // number of failures
   //unsigned int studentCounter = 1; // student counter
   unsigned int studentCounter = { 1 }; // student counter initialised using C++11 list initialisation

   // process 10 students using counter-controlled loop
   while ( studentCounter <= 10 )
   {
      // prompt user for input and obtain value from user
      cout << "Enter result (1 = pass, 2 = fail): ";
      int result = 0; // one exam result (1 = pass, 2 = fail)
      cin >> result; // input result

      // if...else nested in while
      if ( result == 1 )          // if result is 1,
         passes += 1;             // addition assignment operator;
      else                        // else result is not 1, so
         failures = failures + 1; // increment failures

      // increment studentCounter so loop eventually terminates
      studentCounter = studentCounter + 1;
   } // end while

   // termination phase; display number of passes and failures
   cout << "Passed " << passes << "\nFailed " << failures << endl;

   // determine whether more than eight students passed
   if ( passes > 8 )
      cout << "Bonus to instructor!" << endl;
} // end main

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