#include <iostream>
#include <string>

using namespace std;

/*

First attempt

struct Person
{ string name;
  int bdate;        // e.g. 20170118 for 18 Jan 2017
  int phone; };

   typically int = 32 binary digits
   min = (-2) to power of 31
   max = (2 to power 31) - 1

   power(2, 31) = power(2, 10) *  power(2, 10) *  power(2, 10) *  power(2, 1)
   power(2, 10) = roughly 1000 (really 1024)
   so power(2, 31) = about 2,000,000,000

   birth date fits
   phone number 999-999-9999    9,999,999,999 doesn't fit
    therefore change plan 
*/

struct Person
{ string name;
  int bdate;        // e.g. 20170118 for 18 Jan 2017
  string phone; };

void print(Person & p)
                       // & means reference parameter, not a copy
                       // saves time not making copies of params
{ cout << p.name <<
          ", born " << p.bdate << 
          ", ph " << p.phone << "\n"; }

int main()
{
  Person a[100];
 
  a[0].name = "Jill";
  a[0].bdate = 19970225;
  a[0].phone = "(212) 111-2222";

  a[1].name = "Joe";
  a[1].bdate = 19460812;
  a[1].phone = "(786) 222-3333";

  // c is Jil''s twin brother, same phone too

  a[2] = a[0];
  a[2].name = "Jim";

  for (int i = 0; i < 3; i += 1)
  { cout << "a[" << i << "] is ";
    print(a[i]); }
}