Operator :- An operator is a symbol that "opetates" on one or more expression, producing a value that can be assigned to a variable.

                                                                                                     or

operator are used to perform operations on variables and value.

C++ divides the operators into the following groups:

• Arithmetic operators.
• Assignment operators.
• comparison operators.
• Logical operators.
• conditional operators.

What is an Arithmetic operators:-Arithmetic operator sre the simplest and basic operators that do arithmetic operators.These operatoers require                                                                   two variables and are called Binary operators.The various Arithmetic operators. in C++ are as follows:

Operator	Meaning
+	Addition
-	Subtraction
*	Multiplication
/	Division
%	Modulus(Remainder of integer division)

EX:-

#include <iostream>
using namespace std;
int main() {
    int a,b,c;
    cout<<"Enter the number1:";
    cin>>a;
    cout<<"Enter tne number2:";
    cin>>b;
    c=a+b;
    
    cout<<"Addition of two number="<<c<<endl;

    return 0;
}

OUTPUT:-

Enter the number1:5
Enter tne number2:3
Addition of two number=8

What is an Assignment operators:-An assignment operators is used to assing the value toa variables.

The syntax is

                                variable=expression;

e.g. 

a=5;

b=50

x=y=z=100;

The various Assignment operators are:

Operators.	Meaning.
=	Assings value on right hand side(RHS)to the left hand side(LHS).
+=	Value of LHS variable will be added to value of RHS and assing back to the variable in LHS.
-=	Value of RHS variable will be subtracted from the  value of LHS and assing it back to the variable in LHS.
*=	Value of LHS variable will be multiplied by  value of RHS and assing it back to the variable in LHS.
/=	Value of LHS variable will be divided by the value of RHS and assing  it back to the variable in LHS.
%=	The remainder will be stored back to the LHS after integer division is carried out between LSH variable and LHS variable.

e.g.                x+= y is equivalent to x=x+y

                       a+=7             =>a =a+7;

                       a*=4              =>a=a*4

                        a%=(x-10)    =>a=a%(x-10)

Example:-

#include <iostream>
using namespace std;
int main() {
    int a,b,c;
    cout<<"Enter the number1:";
    cin>>a;
    a+=a;
    cout<<"Assignment operator="<<a<<endl;

    return 0;
}

OUTPUT

Enter the number1:10
Assignment operator=20

^{What is comparison operators:-} Comparison operators are used to compare two values (or variables). This is important in programming,                                                                                because it helps us to find answers and make decisions

                                                          The return value of a comparison is either 1 or 0, which means true (1) or false (0).

Operators	Name	Example
==	Equal to	x==y
!=	Not equal	x!=y
>	Greater than	x>y
<	Less than	x<y
>=	Greater than or equal to	x>=y
<=	Less than or equal to	x<=y

Example 

#include <iostream>
using namespace std;
int main() {
    int a,b,c;
    cout<<"Enter the number1:";
    cin>>a;
    cout<<"Enter tne number2:";
    cin>>b;
    c=a==b;
    
    cout<<"compare of two number="<<c<<endl;

    return 0;
}

OUTPUT

1 .Enter the number1:5
Enter tne number2:4
compare of two number=0

2.Enter the number1:5
Enter tne number2:5
compare of two number=1

What is a Logical operators:-Logical operators are referred to as Boolean operators.These operator act upon operands that are themself                                              logical exprerssion. After testing the value of condition, it gives the result , which is either True or False. The logical operators are:

operator	Meaning
&&	AND
||	OR
!	NOT

  The AND (&&) operator gives the result true if both (all) the conditions have the true value, otherwise gives the result false.

Condition1	Condition2	Result
False	False	False
False	True	False
True	False	False
True	True	True

Example 1:-

#include <iostream>
using namespace std;

int main() {
  int x = 5;
  int y = 3;
  cout << (x > 3 && x < 10); // returns true (1) because 5 is greater than 3 AND 5 is less than 10
  return 0;
}
OUTPUT

1

OR (||) operator gives the result true if any onr of the condition or both the condition are true.

Condition1	Condition2	Result
False	False	False
False	True	True
True	False	True
True	True	True

Example 2:-

#include <iostream>
using namespace std;

int main() {
  int x = 5;
  int y = 3;
  cout << (x > 3 || x < 4); // returns true (1) because one of the conditions are true (5 is greater than 3, but 5 is not less than 4)
  return 0;
}
OUTPUT

1

NOT(!) operator gives the result true if condition is false and false if condition is true.

Condition1	Result
False	True
True	False

Example  3:-

#include <iostream>
using namespace std;

int main() {
  int x = 5;
  int y = 3;
  cout << (!(x > 3 && x < 10)); // returns false (0) because ! (not) is used to reverse the result
  return 0;
}
OUTPUT

0

What is a  Conditional Operator:-The Cinditional operator(?) is used to carry out conditional operations. It can be used in place of if-else statement.

The syntax is:-   expression 1 ? expression2: expression 3

Note:- The conditional expression operator is generally used only when the conditonal and both expressions are very simple.

Example:-
#include <iostream>
#include <string>
using namespace std;

int main() {
  double marks;

  // take input from users
  cout << "Enter your marks: ";
  cin >> marks;

  //conditional operator checks if
  // marks is greater than 40
  string result = (marks >= 40) ? "passed" : "failed";

  cout << "You " << result << " the exam.";

  return 0;
}

Output 1

Enter your marks: 80
You passed the exam.

 

Output 2

Enter your marks: 39.5
You failed the exam.