Associate Product Engineer

You are given an array arr of length N. You have to return a list of integers containing the NGE(next greater element) of each element of the given array. The NGE for an element X is the first greater element on the right side of X in the array. Elements for which no greater element exists, consider the NGE as -1.

For Example :

If the given array is [1, 3, 2], then you need to return [3, -1, -1]. Because for 1, 3 is the next greater element, for 3 it does not have any greater number to its right, and similarly for 2.

Given a sentence(in the form of an array of words), and an integer ‘L’, return an array of strings i.e a paragraph such that each line has exactly ‘L’ characters, and is left and right justified.

Justification of text means that space is added between words so that both edges of each line are aligned with both margins. The last line in the paragraph is aligned left.

One needs to add the maximum number of words in a line such that the number of lines is minimised.

We can add whitespaces in a line so that each line has exactly the same number of characters i.e L.

If the number of spaces on a line does not divide evenly between words, the empty slots on the left will be assigned more spaces than the slots on the right.

For the last line of text, it should be left justified and no extra space is inserted between words.

For example:

Let the given sentence be: [ “what”, “must”, “be”, “shall”, “be.”]
And L=12.

The justified output will be :

[ “what must be”
“Shall be.”       ]

Note that the last line is only left justified.