# What is the difference between Unary and Binary Operators in C and C++?

## Difference between Unary and Binary Operators in C, C++

Difference b/w Unary and Binary Operators - In this section you will learn about Unary and Binary Operators. What are they and why they used and how to use these operators in our C and C++ programs?

#### What is an Operator?

Operator is a symbol or special character which is used to perform a specific task, the task/meaning of operator is defined in the compiler. For example + is a operator which is used to add two values.

#### What are Unary Operators?

The Operators which operate on Single Operand known as Unary Operators, some of the unary operators are:

```    ++		Increment Operator
--		Decrement Operator
-		Unary Minus Operators
~		(One’s Compliment) Negation Operator
!		Logical NOT
and so on..
```
Let’s understand by example:
```#include <stdio.h>

int main()
{
int x=10;
int y;

y=(-10);

printf("x=%d, y=%d\n",x,y);

return 0;
}
```

Output

```x=10, y=-10
```

In the given example we are using two operations based on Unary operator:

(-10) here - is a Unary Minus operator which is operating an action with 10 and value of y will be -10.

&x here & is a Unary Address of Operator which is returning the address of variable x.

#### What are Binary Operators?

The Operators which operate on Two Operands known as Binary Operators, some of the binary operators are:

```    +	Binary Plus Operator
-	Binary Minus Operator
==	Equal to Operator
<	Less than Operator
and so on..
```
Let’s understand by example:
```#include <stdio.h>

int main()
{
int x,y;
int res1,res2;

x=10;
y=20;

res1=x+y;
res2=(x==y);

printf("res1: %d, res2: %d\n",res1,res2);

return 0;
}
```

Output

```res1: 30, res2: 0
```

In the given example we are using two operations based on Binary operator:

x+y here + is a Binary Plus Operator which is adding values of x and y and return 30 in res1 variable.

x==y here == is a Binary Equal to Operator which is comparing values of x and y and return 0 in res2 variable because values of x and y are not same.