Write a Program in C++ That Examination-Results Problem: Nested Control Statements

// 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

   // 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 = passes + 1;     // increment passes;       

      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