Program To Find Sum of Numbers Using Function In C++

#include<iostream.h>

#include<conio.h>

#include<math.h>

void sum(int x,int y);

main()

{

clrscr();

int a,b,c;

cout<<"Enter numbers=";

cin>>a>>b;

sum(a,b);

getch();

}

 void sum(int x,int y)

 {

 int z;

 z=x+y;

 cout<<z;

 }