improve my number splitting prog

My following program splits a decimal number into the individual digits with the relevant multiples of 10.

My c++ skills are limited and i would like to see how other people would approach this task ,as I'm sure I've is over complicated things.

Especially this thing:-

int digit = (num % mult) / (mult / 10);

Thanks for any constructive advice.

Code:

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void SplitNumber(void)
{
        int num = rand() % 10000 + 1;
        int nums[16] = {0};
        int mult = 10;
        int totalCheck = 0;
        int numOfDigits = 0;

        do
        {
                int digit = (num % mult) / (mult / 10);
                nums[numOfDigits] = digit;
                totalCheck += digit * (mult / 10);
                mult *= 10;
                numOfDigits++;
        }while(totalCheck != num);

        cout << "Original number = " << num << " is equal to the accumulation of\n";
        //        << "Total = " << totalCheck << '\n';

        mult = 1;
        for(int i = 0; i < numOfDigits; i++)
        {
                cout << nums[i] << " * "
                        << mult  << " = "
                        << nums[i] * mult << '\n';

                mult *= 10;
        }

}

---

Mark S.

Code:

---

#include <iostream>
#include <cmath>

int split(const int num, int iter);

int main()
{
        int num;

        std::cout<<"Give me a number: ";
        std::cin>>num;
        std::cin.ignore(1);
        std::cout<<split(num,1)<<"x1"<<std::endl;
       
        return 0;
}

int split(const int num, int iter)
{
        if(num/10<1)
        {
                iter++;
                return num;
        }
        else
        {
                std::cout<<split(num/10,++iter)<<'x'<<pow(10,iter)<<'\n';
                return num-(static_cast<int>(num/10)*10);
        }
}

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yeah, don't do that.

>i would like to see how other people would approach this task

Code:

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#include <iostream>
#include <sstream>
#include <string>

using namespace std;

string split_num ( int num )
{
  stringstream s;
  s<< num;
  return s.str();
}

int main()
{
  int num;

  cout<<"Enter a number: ";

  if ( cin>> num ) {
    string s = split_num ( num );

    for ( string::size_type i = 0; i < s.size(); i++ )
      cout<< ( s[i] - '0' ) * 2 <<'\n';
  }
}

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