To find the sum of VE & -VE elements in an array

Program:

#include<stdio.h>
#include<conio.h>
void main()
{
    int a[20], i, n, psum = 0, nsum = 0;
    clrscr();
    printf("Enter the limit : ");
    scanf("%d", &n);
    printf("\nEnter the elements :\n\n");
    for(i = 0 ; i < n ; i++)
    scanf("%d", &a[i]);
    for(i = 0 ; i < n ; i++)
    {
        if(a[i] > 0)
        psum = psum + a[i];
        if(a[i] < 0)
        nsum = nsum + a[i];
    }
    printf("\nSum of positive elements is : %d", psum);
    printf("\n\nSum of negative elements is : %d", nsum);
    getch();
}

Output:

Enter the limit : 5
Enter the elements :
-10 30 50 -20 40
Sum of positive elements is : 120
Sum of negative elements is : -30