Use of C++ program to subtraction of two numbers using recursion

In this tutorial, we will discuss the Use of C++ program to subtraction of two numbers using the recursion

In this topic, we are going to learn how to subtract two numbers using the recusive function in Cpp language

already we are learned the same concept using the operator

if you want to remember click here, Cpp program to subtract two numbers

subtraction of two numbers using recursion

program to subtraction of two numbers using recursion

The program allows to enter two integer numbers and then it calculates the subtraction of the given numbers using recursive function of C++ language

Program 1

#include <iostream>
#include <conio.h>
using namespace std;

 int sub(int,int);
int main()
{
    int num1,num2;
    cout<<"Enter two numbers: \n";
    cin>>num1>>num2;//
     cout<<"Subtraction of two numbers : "<<sub(num1,num2);
     getch();
    return 0;
}
int sub(int num1, int num2)//function definition
{
    if(num2==0)
        return num1;
    else
        return sub((num1-1),(num2-1));

}

When the above code is executed, it produces te following result

Enter two numbers
235
125
Subtraction of two numbers : 110

Approach

Declare three int type variables num1,num2. num1,num2 are used to received input from the user
Receive input from the user for num1,num2 to perform subtraction
Define a recursive function to subtract two numbers
When the function is called, two numbers will be passed as argument subsequently the subtract of two numbers will be found
display the result on the screen

Suggetsed post

Operator in Cpp language

Data type in Cpp language

Variable in Cpp language