Addition of two number using ‘-‘ operator

Last Updated : 13 Mar, 2023

The task is to Add two number using ‘-‘ operator.

Examples:

Input : 2 3
Output : 5

Input : 10 20
Output : 30

The idea is simple, we subtract -b from a.

C++

// CPP program to add two numbers using 
// - operator. 
#include <bits/stdc++.h> 
using namespace std; 
  
// function to add two numbers. 
int add(int a, int b) 
{ 
    return a - (-b); 
} 
  
// Driver code 
int main() 
{ 
    int a = 2, b = 3; 
    cout << add(a, b) << endl; 
    return 0; 
} 

Java

// Java program to add 
// two numbers using 
// - operator. 
import java.io.*; 
  
class GFG  
{ 
      
// function to add two numbers. 
static int add(int a, int b) 
{ 
    return a - (-b); 
} 
  
// Driver code 
public static void main (String[] args)  
{ 
    int a = 2, b = 3; 
    System.out.print(add(a, b)); 
} 
} 
  
// This code is contributed  
// by chandan_jnu 

Python3

# Python 3 program to add two numbers 
# using - operator.  
  
# Function to add two numbers  
def add(a, b): 
      
    return (a - (-b)) 
      
      
# Driver code       
if __name__ == "__main__" :  
    
    a = 2
    b = 3
    
    print(add(a, b)) 
  
# this code is contributed by Naman_Garg 

C#

// C# program to add 
// two numbers using 
// - operator. 
class GFG 
{ 
      
// function to add two numbers. 
static int add(int a, int b) 
{ 
    return a - (-b); 
} 
  
// Driver code 
static void Main()  
{ 
    int a = 2, b = 3; 
    System.Console.WriteLine(add(a, b)); 
} 
} 
  
// This code is contributed  
// by mits 

PHP

<?php 
// PHP program to add two  
// numbers using - operator. 
  
// function to add two numbers. 
function add($a, $b) 
{ 
    return $a - (-$b); 
} 
  
// Driver code 
$a = 2; 
$b = 3; 
echo add($a, $b); 
  
// This code is contributed by mits 
?> 

Javascript

<script> 
  
// Javascript program to add two numbers using 
// - operator. 
  
// Function to add two numbers. 
function add(a, b) 
{ 
    return a - (-b); 
} 
  
// Driver code 
var a = 2, b = 3; 
  
document.write(add(a, b)); 
  
// This code is contributed by itsok 
  
</script>

Output:

Time complexity: O(1)
Auxiliary Space: O(1), As constant extra space is used.

C++ Program To Add Two Complex Numbers

Naman_Garg

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Article Tags :

Practice Tags :

cpp-operator

Addition of two number using ‘-‘ operator

C++

Java

Python3

C#

PHP

Javascript

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