/*****************************************************************************
*       Outputs two arrays of random numbers and their common numbers.       *
*       Inputed: <none>                                                      *
*       Outputed: array1, array2, samearray                                  *
*       Written: 2002                                                        *
*       By: Ronald Roberts                                                   *
*****************************************************************************/

#include <iostream.h>
#include <iomanip.h>
#include <math.h>
#include <Stdlib.h>
#include <time.h>

double randomfunction(int modulator, double shifter);

int main()
	{
		srand((unsigned)time(NULL));
		int array1[20]={0}, array2[20]={0}, samearray[50]={0}, numberofsamenums=0, k=0;
		cout<<"Array 1: ";
		for(int i=0; i<20; i++)
			{
				array1[i]=randomfunction(50,1);
				cout<<array1[i]<<" ";
			}
		cout<<endl;
		cout<<"Array 2: ";
		for (int i=0; i<20; i++)
			{
				array2[i]=randomfunction(50,1);
				cout<<array2[i]<<" ";
			}
		for(int i=0; i<20; i++)
			{
				for (int j=0; j<20; j++)
					{
						if (array1[i]==array2[j])
							{
								int repetitioncheck=0, l=-1;
								do
									{
										l++;
										if (array1[i]==samearray[l])
											{
												repetitioncheck=1;
											}
									}while (l<numberofsamenums);
								
								if (repetitioncheck==0)
									{
										samearray[k]=array2[j];
										k++;
										numberofsamenums++;
									}
							}
					}
			}
		cout<<endl;
		cout<<"Numbers in common are: ";
		for (int i=0; i<numberofsamenums; i++)
			{
				cout<<samearray[i]<<" ";
			}
		return 0;
	}

double randomfunction(int modulator, double shifter)
	{
		return rand()%modulator+shifter;
	}

/*
Array 1: 25 44 19 34 13 25 20 15 17 24 35 38 47 7 29 26 14 7 18 39 
Array 2: 2 37 35 25 35 41 48 34 15 32 30 6 8 35 7 18 21 25 9 38 
Numbers in common are: 25 34 15 35 38 7 18 
*/