Write a program to insert, traverse, sum of all integer numbers, sum of all even numbers and sum of all odd numbers in array

#include <iostream.h>

#include<conio.h>

int main()

{

            int i,n, sum=0,even=0 ,odd=0;

           int a[20] ;

            cout<<"How many elemnt do you want:--"<<endl;

            cin>>n;

              for (i=0; i<n; i++)

            {

             cout<<"Enter the value in array:-"<<endl;

             cin>>a[i];

            }

          cout<<"Element is:--"<<endl;

            for (i=0; i<n ;i++)

            {

                        cout<<a[i]<<endl;

            }

            cout<<"sum of all integer numbers:-"<<endl ;

            for (i=0; i<n ;i++)

            {

            sum=sum+a[i];

            }

            cout<<sum<<endl;

            for (i=0; i<n ;i++)

            {

            if(a[i]%2==0)

            {

even=even+a[i];

            }

            else

            {

            odd=odd+a[i];

            }

        }

                        cout<<"sum of all even numbers :-"<<endl ;

                        cout<<even<<endl;

                        cout<<"sum of all odd numbers :-"<<endl ;

                        cout<<odd<<endl;

getch();  

}