#include <iostream>
using namespace std;

int* Extract(const int num) {
	if (num == NULL)return NULL; //??
	int numCopy = num;
	if (num < 0)numCopy=-num;
	int arr[10] = {};
	//int counter = 0;
	while (numCopy != 0) {
		arr[numCopy % 10]++;
		numCopy  /= 10;
	}
	int max = -1;
	for (int i = 0; i < 10; i++)
	{
		if (arr[i] > max) {
			max = arr[i];
		}
	}
	int* resultArr = new int[10];
	//int resultArr[10]{};
	int index = 0;
	for (int i = 0; i < 10; i++)
	{
		if (arr[i] == max) {
			resultArr[index] = i;
			index++;
		}
	}
	return resultArr;
}

int main()
{
	int a = 2345114;
	int* arr = new int[10]{};
	arr = Extract(a);
	for (int i = 0; i < 10; i++)
	{
		cout << arr[i] << endl;
	}

	//delete[] resultArr; ???
	delete[] arr;

}