PassingFunctionAddress_1.cpp

#include<iostream>
using namespace std;
int add(int , int);
int result(int (*)(int,int), int , int); //function declaration
int main()
{
    int a,b,sum;
    cout<<"Enter 1st number: ";
    cin>>a;
    cout<<"Enter 2nd number: ";
    cin>>b;
    sum=result(add,a,b);
    cout<<"\nResult: "<<sum;
    return 0;
}

int add(int x, int y)
{
    return x+y;
}
int result(int (*fn)(int, int), int x, int y){
    return fn(x,y);
}