/*
  Module: tr4_q1a.cpp
  Author: Yariv Amar

  What? This program reads a series of 10 numbers and calculates 
  the mathematical average of the first half and the geometric average
  of all the non zero numbers.
  

  Input : 10 numbers
  Output: mathematical and geometric average
  Assumptions on input: Valid 10 integer nonnegative numbers.
  

  How?
  Using for to get the data
*/

#include<iostream.h>

#include<math.h>

const int NUMBERS=10;

void main()
{
  int Num;
  int NZ_counter=0; //declering on counter for Non Zero numbers.
  double M_average=0 , G_average=1;

  cout<<"Please enter the series of numbers and press enter:\n";
  cout<<"---------------------------------------------------\n";

  for (int i=1;i<=NUMBERS;i++)
  {//start loop of NUMBERS
     cin>>Num;
	 if (i<=NUMBERS/2) M_average+=Num;
     if (Num)
	 {// case number is not zero
		 NZ_counter++;
		 G_average*=Num;
	 }//end if not zero
  }//end loop
  

  M_average/=(NUMBERS/2);
  cout<<"\nThe mathematical average for the first half is: "<<M_average;
  

  if (NZ_counter)
  {//check if series is not empty
  G_average=pow(G_average,1/double(NZ_counter));
  cout<<"\nThe geomtric average is: "<<G_average<<"\n";
  }
  else cout<<"\nCannot make geomtric average cuse the series is empty.\n";
}

/*
  Module: tr4_q1b.cpp
  Author: Yariv Amar

  What? This program reads a series of numbers and calculates 
  the mathematical average of the first half and the geometric average
  of all the non zero numbers except for the first number.
  

  Input : series of numbers.
  Output: mathematical and geometric average
  Assumptions on input: Valid integer nonnegative numbers.
  

  How?
  The first number of the input is representing the length of the
  series, then using 'for' to get the data.
*/

#include<iostream.h>
#include<math.h>

void main()
{
  int Num , Numbers;
  int NZ_counter=0; //declering on counter for Non Zero numbers.
  double M_average=0 , G_average=1;
  

  cout<<"Please enter the series of numbers and press enter:\n";
  cout<<"---------------------------------------------------\n";
  

  cin>>Numbers;
  if (Numbers>0)
  {             
    for (int i=1;i<=Numbers;i++)
    {
       cin>>Num;
	   if (i<=Numbers/2) M_average+=Num;
	   if (Num)
	   {// case number is not zero
		   NZ_counter++;
		   G_average*=Num;
	   }//end if not zero
	}//end for
	M_average/=(Numbers/2);
	cout<<"\nThe mathematical average for the first half is: "<<M_average;
	if (NZ_counter)
	{//check if series is not empty
		G_average=pow(G_average,1/double(NZ_counter));
		cout<<"\nThe geomtric average is: "<<G_average<<"\n";
	}//end if not zero
	else cout<<"\nCannot make geomtric average cuse the series is empty.\n";
  }//end if have numbers
  else cout<<"\nThere are no numbers on the series";
}

/*
  Module: tr4_q1c.cpp
  Author: Yariv Amar

  What? This program reads a series of numbers and calculates 
  the mathematical and geometric average of them except of the last
  number that endes the series (-1)
  

  Input : series of numbers
  Output: mathematical and geometric average
  Assumptions on input: Valid integer nonnegative numbers.except for the
  last
  

  How?
  using 'while' to read the data until finds '-1' than stops 
  to get data and calculate the averages .

*/

#include<iostream.h>
#include<math.h>
void main()
{
  int Num , Numbers=0;
  int NZ_counter=0;
  double M_average=0 , G_average=1;
 

  cout<<"Please enter the series of numbers and then enter.\n";
  cout<<"* Notice that '-1' is ending the series\n";
  cout<<"--------------------------------------------------\n";

  cin>>Num;
  while (Num!=-1)
  {
     Numbers++;
	 M_average+=Num;
	 if (Num)
	 {// case number is not zero
		 NZ_counter++;
		 G_average*=Num;
	 }//end if not zero
     cin>>Num;
  }
  if (Numbers)
  {//start printing results
    M_average/=Numbers;
    cout<<"\n---------------------------------";
    cout<<"\nThe mathematical avarage is: "<<M_average;
	if (NZ_counter)
	{//check if series is not empty
		G_average=pow(G_average,1/double(NZ_counter));
		cout<<"\nThe geomtric average is: "<<G_average<<"\n";
	}//end if not zero
	else cout<<"\nCannot make geomtric average cuse the series is empty.\n";
  }//end printing results
  else cout<<"\nThere are no numbers on the series\n";//No results
}

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