Lambda Expressions

Lambda Expressions were added in Java 8.

A lambda expression is a short block of code that takes in parameters and returns a value. Lambda expressions are similar to methods, but they do not need a name and they can be implemented right in the body of a method.

Syntax
The simplest lambda expression contains a single parameter and an expression:

parameter -> expression

To use more than one parameter, wrap them in parentheses:

(parameter1, parameter2) -> expression

Expressions are limited. They have to immediately return a value, and they cannot contain variables, assignments or statements such as if or for. In order to do more complex operations, a code block can be used with curly braces. If the lambda expression needs to return a value, then the code block should have a return statement.

(parameter1, parameter2) -> { code block }

Task:

In the previous problem, we used the Comparator Interface to order the elements in the priority queue, in this problem try to use lambda expression in place of Comparator Interface.

NOTE: Problem Statement, Constraints, and everything else is the same in this problem as compared to the previous problem.