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Addition of two number using ‘-‘ operator

  • Difficulty Level : Hard
  • Last Updated : 13 Apr, 2021

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: 
5

 

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