Modify the following program so pin1, pin2, and pin3 are vectors instead of arra

Question

Modify the following program so pin1, pin2, and pin3 are vectors instead of arrays

// This program is a driver that tests a function comparing the

// contents of two int arrays.

#include <iostream>

using namespace std;

// Function Prototype

bool testPIN(const int [], const int [], int);

int main ()

{

   const int NUM_DIGITS = 7; // Number of digits in a PIN

   int pin1[NUM_DIGITS] = {2, 4, 1, 8, 7, 9, 0}; // Base set of values.

   int pin2[NUM_DIGITS] = {2, 4, 6, 8, 7, 9, 0}; // Only 1 element is

                                                 // different from pin1.

   int pin3[NUM_DIGITS] = {1, 2, 3, 4, 5, 6, 7}; // All elements are

                                                 // different from pin1.

   if (testPIN(pin1, pin2, NUM_DIGITS))

      cout << "ERROR: pin1 and pin2 report to be the same. ";

   else

      cout << "SUCCESS: pin1 and pin2 are different. ";

   if (testPIN(pin1, pin3, NUM_DIGITS))

      cout << "ERROR: pin1 and pin3 report to be the same. ";

   else

      cout << "SUCCESS: pin1 and pin3 are different. ";

   if (testPIN(pin1, pin1, NUM_DIGITS))

      cout << "SUCCESS: pin1 and pin1 report to be the same. ";

   else

      cout << "ERROR: pin1 and pin1 report to be different. ";

   return 0;

}

//******************************************************************

// The following function accepts two int arrays. The arrays are   *

// compared. If they contain the same values, true is returned.    *

// If the contain different values, false is returned.             *

//******************************************************************

bool testPIN(const int custPIN[], const int databasePIN[], int size)

{

   for (int index = 0; index < size; index++)

   {

      if (custPIN[index] != databasePIN[index])

         return false; // We've found two different values.

   }

   return true; // If we make it this far, the values are the same.

}

Explanation / Answer

// This program is a driver that tests a function comparing the

// contents of two int arrays.

#include <iostream>
#include <vector>

using namespace std;

// Function Prototype

bool testPIN(const vector<int>, const vector<int>, int);

int main ()

{

const int NUM_DIGITS = 7; // Number of digits in a PIN
int a[7] = {2, 4, 1, 8, 7, 9, 0};

vector<int> pin1(a,a +(sizeof(a)/sizeof(a[0])));
// Base set of values.

int b[7] = {2, 4, 6, 8, 7, 9, 0};

vector<int> pin2(b,b +(sizeof(b)/sizeof(b[0]))); // Only 1 element is

int c[7] = {1, 2, 3, 4, 5, 6, 7};
// different from pin1.

vector<int> pin3(c,c +(sizeof(c)/sizeof(c[0]))); // All elements are

// different from pin1.

if (testPIN(pin1, pin2, NUM_DIGITS))

cout << "ERROR: pin1 and pin2 report to be the same. ";

else

cout << "SUCCESS: pin1 and pin2 are different. ";

if (testPIN(pin1, pin3, NUM_DIGITS))

cout << "ERROR: pin1 and pin3 report to be the same. ";

else

cout << "SUCCESS: pin1 and pin3 are different. ";

if (testPIN(pin1, pin1, NUM_DIGITS))

cout << "SUCCESS: pin1 and pin1 report to be the same. ";

else

cout << "ERROR: pin1 and pin1 report to be different. ";

return 0;

}

//******************************************************************

// The following function accepts two int arrays. The arrays are *

// compared. If they contain the same values, true is returned. *

// If the contain different values, false is returned. *

//******************************************************************

bool testPIN(const vector<int> custPIN, const vector<int> databasePIN, int size)

{

for (int index = 0; index < size; index++)

{

if (custPIN.at(index) != databasePIN.at(index))
return false; // We've found two different values.

}

return true; // If we make it this far, the values are the same.

}

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