C++ Logical operators

Logical operators are used to perform logical operations on the given two variables.

Logical operators :

Operator	Usage
&&	expr1 && expr2
||	expr1 || expr2
!	!expr1

Logical operator chart :

Operator	Condition 1	Condition 2	Result
&&	True	True	True
	True	False	False
	False	True	False
	False	False	False
||	True	True	True
	True	False	True
	False	True	True
	False	False	False
!	True	-	False
	False	-	True

Example :

a = 5;
b = 10;

(a == 5) && (b < 5) = false
/*
    here, first expression a == 5 is true
          second expression b < 5 is false
    so, final result of && operator is false
    (True && False = False)
*/

(a == 4) && (b < 15) = false
(a == 5) && (b < 15) = true
(a == 4) && (b < 5) = false

(a == 5) || (b < 5) = true
(a == 4) || (b < 15) = true
(a == 4) || (b < 5) = false

!(a == 5) = false
!(a == 4) = true