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Addition of two number using ‘-‘ operator
  • Difficulty Level : Hard
  • Last Updated : 15 Oct, 2018

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
?>


Output:

5



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