Скопировать в третий массив структуры, которые есть в первом массиве и которых нет во втором массиве

#include <iostream.h>
 
struct hymon
{
char surname[20];
char address[100];
};
 
int main(int argc, char* argv[])
{
const unsigned n = 6;
hymon arr1[n], arr2[n], arr3[n];
 
const ch = 48;
for( char count=ch; count<n+ch; count++ )     // Заполняем
  {
  strcpy( arr1[count-ch].surname, "mr. " );
  strcat( arr1[count-ch].surname, &(count) );
  arr1[count-ch].surname[strlen( arr1[count-ch].surname ) - 1] = '\0';
 
  strcpy( arr1[count-ch].address, "Some Street" );
 
 
  strcpy( arr2[count-ch].surname, "mr. " );
  strcat( arr2[count-ch].surname, &(count) );
  arr2[count-ch].surname[strlen( arr2[count-ch].surname ) - 1] = '\0';
 
  strcpy( arr2[count-ch].address, "Some Street" );
  }
 
strcpy( arr2[n/2].address, "Some another street" );
 
unsigned index = 0;
for( unsigned count=0; count<n; count++ )     // Ищем
  {
  if( strcmp( arr1[count].surname, arr2[count].surname ) ||
      strcmp( arr1[count].address, arr2[count].address )    )
    arr3[index++] = arr1[count];
  }
 
for( unsigned count=0; count<index; count++ ) // Выводим
  cout << arr3[count].surname << endl;
 
cin.ignore();
return 0;
}

system("pause");

system("pause")

#include "stdafx.h"
#include <iostream>
using namespace std;
struct hymon
{
    char surname[20];
    char address[100];
};
 
int main(int argc, char* argv[])
{
    const unsigned n = 6;
    hymon arr1[n], arr2[n], arr3[n];
 
    const int ch=48;
    for (char count = ch; count<n + ch; count++)     // Заполняем
    {
        strcpy_s(arr1[count - ch].surname, "mr. ");
        strcat_s(arr1[count - ch].surname, &(count));
        arr1[count - ch].surname[strlen(arr1[count - ch].surname) - 1] = '\0';
 
        strcpy_s(arr1[count - ch].address, "Some Street");
 
 
        strcpy_s(arr2[count - ch].surname, "mr. ");
        strcat_s(arr2[count - ch].surname, &(count));
        arr2[count - ch].surname[strlen(arr2[count - ch].surname) - 1] = '\0';
 
        strcpy_s(arr2[count - ch].address, "Some Street");
    }
 
    strcpy_s(arr2[n / 2].address, "Some another street");
 
    unsigned index = 0;
    for (unsigned count = 0; count<n; count++)     // Ищем
    {
        if (strcmp(arr1[count].surname, arr2[count].surname) ||
            strcmp(arr1[count].address, arr2[count].address))
            arr3[index++] = arr1[count];
    }
 
    for (unsigned count = 0; count<index; count++) // Выводим
        cout << arr3[count].surname << endl;
 
    cin.ignore();
    system("pause");
    return 0;
}