Leetcode problem 1409:- Queries on a Permutation With Key

Given the array queries of positive integers between 1 and m, you have to process all queries[i] (from i=0 to i=queries.length-1) according to the following rules: Return an array containing the result for the given queries. Example 1: Input: queries = [3,1,2,1], m = 5Output: [2,1,2,1]Explanation: The queries are processed as follow:For i=0: queries[i]=3, P=[1,2,3,4,5],…

How to access the collection elements using the streams?

Streams is introduced in java8 version. It basically helps to write a concise piece of code and it’s functional style of code writing. For the complete piece of code please visit the below mentioned link. The piece of code for stream iteration is mentioned below :- In the above case the “forEach” is a terminal…