//A Simple C++ Example Program

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

using namespace std;


//------Declare Variables------


int main()
{
  int j,n;
  int seed = 3;
  double sum,num2,fullsum,sqsum;
  int ran_num;
  sum=0.0;
  fullsum=0.0;
  sqsum=0.00;
  srand(seed);
  cout<<"\nPlease Sir or Mam, enter the number of points: ";
  cin>>n;
  cout<<"\n";
  for(int j=0; j<n; j++)
  {
   ran_num=(rand()%100000);
   num2=2.0*(ran_num/100000.0-0.5);
   fullsum=fullsum+num2; 
   sqsum=sqsum+num2*num2;
   if(num2>=0.0)
   {
     sum=sum+num2;
   }

   }

{
cout<<"The positive sum is equal to: "<<sum<<"\n";
cout<<"The sum is equal to: "<<fullsum<<"\n";
cout<<"The squared sum is equal to: "<<sqsum<<"\n";

}

return(0);
}