Sum and Average in functions. It compiled but the result is showing garbage value. could anyone write the proper form of code an

Question

#include<iostream>
using namespace std;
int sum (int,int);
int average (int, int);
int main ()
{
int num1; int num2;
cout<<"\nEnter first Value:";
cin>> num1;
cout<<"\nEnter second Value:";
cin>> num2;
sum (num1,num2);
average (num1,num2);
cout<<"\nThe sum is:" << " " << sum;
cout<<"\nThe average is:" << " " << average;
return 0;
}
int sum ( int a, int b)
{
return (a + b);
}
int average (int a, int b)
{
return (sum (a,b)/2);
}

Answer 1

Dipanjan Basu Kindly check for the corrections made.

https://code.sololearn.com/ckh58fvjcWHv/?ref=app

Answer 2

average should return double (or other type of decimal I dont really know C++)

Answer 3

And you have to store the values you return from your functions