C++ program to print even or odd in given range using recursion

C++ program to print even or odd in given range using recursion

In this tutorial, we will discuss a concept of the  C++ program to print odd or even number between given range using recursion

In this article, we are going to learn  how to  print of odd and even numbers using recursion in the C++ programming language

 

What is an even or odd number?

When any integer ends in 0,2,4,6,8 and it can be divided by two with the remainder of zero, it is called as an even number.

Example of even numbers – 34,-64,78,788

When any integer ends in 0,1,3,5,7,9 and it cannot be divided without a remainder, it is called as an odd number.

Example for odd numbers – 33,-69,75,785

 

Here, We can use a  C++ program operators to find odd or even number in a given range

C++ program to check odd or even using recursion

Program 1

This program allows the user to enter two input(number) for the lower limit and upper limit. and  it finds whether odd and even numbers in the given range(between upper limit to lower limit)

#include <iostream>
#include <conio.h>
using namespace std;
//function declaration
void displayEvenOdd(int num, int limit);
int main()
{
    int lowerLimit, upperLimit;
    cout<<"Enter your lower limit\n";
    cin>>lowerLimit;   //get input from user to lower limit
    cout<<"Enter your upper limit\n";
    cin>>upperLimit;    //get input from user to upper limit
    cout<<"Even/odd numbers from "<<lowerLimit<<" to "<<upperLimit<<endl;
    displayEvenOdd(lowerLimit, upperLimit);
     //function call with argument
    getch();
    return 0;
}

void displayEvenOdd(int num, int limit)//recursive function
{
    if(num>limit)
        return;
    cout<<num<<endl;

    displayEvenOdd(num + 2, limit);
}

When the above code is executed, it produces the following results

case 1

Enter your lower limit
12
Enter your upper limit
24
Even/odd numbers from 12 to 24
12
14
16
18
20
22
24

 

case 2

Enter your lower limit
11
Enter your upper limit
25
Even/odd numbers from 11 to 25
11
13
15
17
19
21
23
25

 

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