Overload the sum functions by using a different set of parameters for the four s

Question

Overload the sum functions by using a different set of parameters for the four sum functions prototypes below... (notice we do not use reference parameters...only value parameters):

int sum(int, int);

int sum(int,int,int);

int sum(int,int,int,int);

int sum(int,int,int,int,int);

Each of the four sum functions should return the sum of all of it's int parameters.

You can write your code so that each of the last 3 sum functions calls the one listed before it. For example, inside the function with 4 parameters will be the call to the function with 3 parameters and likewise for the remaining two functions.

Explanation / Answer

#include<iostream>
using namespace std;
int sum(int x, int y)
{
   int add;
   add=x+y;
   return add;  
}
int sum(int x,int y,int z)
{
   int add;
   add=x+y+z;
   return add;
}
int sum(int x,int y,int z,int a)
{
   int add;
   add=x+y+z+a;
   return add;
}
int sum(int x,int y,int z,int a,int b)
{
   int add;
   add=x+y+z+a+b;
   return add;
}
int main()
{
   int add;

   add=sum(2,3);
   cout<<" output of first function is: "<<add;
   add=sum(2,3,4);
   cout<<" output of second function is: "<<add;
   add=sum(2,3,4,5);
   cout<<" output of third function is: "<<add;
   add=sum(2,3,4,5,6);  
   cout<<" output of fourth function is: "<<add;
}

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