6.24 C++ How to Program (8th Edition) By Paul Deitel, Harvey Deitel

(Separating Digits) Write program segments that accomplish each of the following:

a) Calculate the integer part of the quotient when integer a is divided by integer b.

b) Calculate the integer remainder when integer a is divided by integer b.

c) Use the program pieces developed in (a) and (b) to write a function that inputs an integer between 1 and 32767 and prints it as a series of digits, each pair of which is separated by two spaces. 

For example, the integer 4562 should print as follows: 4 5 6 2
Solution: 

#include <iostream>
using std::cout;
using std::cin;
 
int integerPart(int, int );
int integerRemainder(int, int);
int separate(int);
 
int main()
{
   int a, b;
   int i;
 
   cout << "Enter two integers: ";
   cin >> a >> b;
   cout << "\ninteger part of the quotient is " << integerPart(a, b);
   cout << "\ninteger remainder is " << integerRemainder(a, b);
 
   cout << "\nEnter integer between 1 and 32767: ";
   cin >> i;
   separate(i);
 
   return 0;
}
 
// integer part of the quotient function
int integerPart(int a, int b)
{
   return (a / b) * b;
}
 
int integerRemainder(int a, int b)
{
   return a % b;
}
 
//separate function
int separate(int i)
{
   if(i >= 10000)
   {
      cout << i/10000 << "  ";
      i = i % 10000;
   }
   if(i >= 1000)
   {
      cout << i/1000 << "  ";
      i = i % 1000;
   }
   if(i >= 100)
   {
      cout << i/100 << "  ";
      i = i % 100;
   }
   if(i >= 10)
   {
      cout << i/10 << "  ";
      i = i % 10;
   }
   cout << i;
}