Software Developer

Given an array/list 'ARR' of integers and a position ‘M’. You have to reverse the array after that position.

Example:

We have an array ARR = {1, 2, 3, 4, 5, 6} and M = 3 , considering 0 
based indexing so the subarray {5, 6} will be reversed and our 
output array will be {1, 2, 3, 4, 6, 5}.

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Ninja has been given a program to do basic string compression. For a character that is consecutively repeated more than once, he needs to replace the consecutive duplicate occurrences with the count of repetitions.

Example:

If a string has 'x' repeated 5 times, replace this "xxxxx" with "x5".

The string is compressed only when the repeated character count is more than 1.

Note :

The consecutive count of every character in the input string is less than or equal to 9.

Tanmay and Rohit are best buddies. One day Tanmay gives Rohit a problem to test his intelligence and skills. He gives him an array of N natural numbers and asks him to solve the following queries:-

Query 0 :

0 x y

This operation modifies the element present at index x to y.

Query 1 :

1 x y 

This operation counts the number of even numbers in range x to y inclusive.

Query 2 :

2 x y 

This operation counts the number of odd numbers in range x to y inclusive.

Suppose you are assigned a new project from scratch. What kind of principles will you follow?

Reverse a given stack of 'N' integers using recursion. You are required to make changes in the input parameter itself.

Note: You are not allowed to use any extra space other than the internal stack space used due to recursion.

Example:

Input: [1,2,3,4,5] 
Output: [5,4,3,2,1]

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