Find sum of two numbers using recursion

SOURAV KUMAR PATRA September 20, 2020

Problem statement:- Program to Find the sum of two numbers using recursion.

Data requirement:-

   Input Data:- num1, num2

  Output Data:-sum(num1,num2)

Program in C

Here is the source code of the C Program to Find the sum of two numbers using recursion.

Code:

#include<stdio.h>
int sum(int num1, int num2)
{
   if(num2==0)
    return num1;
   return sum(num1, num2-1)+1;
}
int main()
{
    int num1, num2;
    printf("Enter the two Number:");
    scanf("%d%d",&num1,&num2);
    printf("Sum of Two Number Using Recursion is:%d",sum(num1,num2));
}

Input/Output:
Enter the two Number:10
25
Sum of Two Number Using Recursion is:35

Program in C++

Here is the source code of the C++ Program to Find the sum of two numbers using recursion.

Code:

#include<iostream>
using namespace std;
int sum(int num1, int num2)
{
   if(num2==0)
    return num1;
   return sum(num1, num2-1)+1;
}
int main()
{
    int num1, num2;
    cout<<"Enter the two Number:";
    cin>>num1>>num2;
    cout<<"Sum of Two Number Using Recursion is:"<<sum(num1,num2);
}

Input/Output:
Enter the two Number:24
36
Sum of Two Number Using Recursion is:60

Program in Java

Here is the source code of the Java Program to Find the sum of two numbers using recursion.

Code:

import java.util.Scanner;
public class SumOfTwoNumberUsingRecursion {
  static int sum(int num1, int num2)
  {
  if(num2==0)
   return num1;
return sum(num1, num2-1)+1;
  }
public static void main(String[] args) {
Scanner cs=new Scanner(System.in);
int num1, num2;
    System.out.print("Enter the two Number:");
    num1=cs.nextInt();
    num2=cs.nextInt();
    System.out.print("Sum of Two Number Using Recursion is: "+sum(num1,num2));
        cs.close();
}
}

Input/Output:
Enter the two Number:25
30
Sum of Two Number Using Recursion is: 55

Program in Python

Here is the source code of the Python Program to Find the sum of two numbers using recursion.

Code:

def sum(num1,num2):
    if num2==0:
        return num1
    return sum(num1, num2-1)+1
print("Enter the two Number:")
num1=int(input())
num2=int(input())
print("Sum of Two Number Using Recursion is: ",sum(num1,num2))

Input/Output:
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