Software Engineer

You are given a string denoting a valid Prefix expression containing ‘+’, ’-’, ’*’, ‘/’ and lowercase letters.

Convert the given Prefix expression into an Infix expression.

Note:

Infix notation is a method of writing mathematical expressions in which operators are placed between operands. For example, "a + b" represents the addition of a and b.

Prefix notation is a method of writing mathematical expressions in which operators are placed before the operands. For example, "+ a b" represents the addition of a and b.

Expression contains lowercase English letters, ‘+’, ‘-’, ‘*’, and  ‘/’. 

Example:

Input: /-ab+-cde

Output: ((a-b)/((c-d)+e))

Explanation:
In this test case, there are four operators ‘/’, ‘-’, ‘+’, ‘-’.
Prefix expression:  /-ab+-cde. 
The operator between  ‘a’ and ‘b’ is ‘-’. Resulting expression: /(a-b)+-cde.
The operator between  ‘c’ and ‘d’ is ‘-’. Resulting expression: /(a-b)+(c-d)e.
The operator between ‘c-d’ and ‘e’ is +. Resulting expression: /(a-b)((c-d)+e).
The operator between ‘a-b’ and ‘((c-d)+e)’ is ‘/’. Resulting expression: ((a-b)/((c-d)+e)).

Given two numbers represented by linked lists. Your task is to find the multiplied list and return the head of the multiplied list.

The multiplied list is a linked list representation of the multiplication of two numbers.

Alice and Bob have invented a new game to play. The rules are as follows -

First, they get a set of ‘N’ distinct integers. And then they take turns to make the following moves. During each move, either Alice or Bob (the player whose turn is the current) can choose two distinct integers ‘X’ and ‘Y’ from the set, such that the set doesn't contain their absolute difference |X - Y|. Then this player adds integer |X - Y| to the set (so, the size of the set increases by one).

If the current player has no valid move, he (or she) loses the game. The question is who will finally win the game if both players play optimally. Remember that Alice always moves first.

What are maps in Javascript?

What are polyfills?

Write the Ployfill for Map function

Basic HR questions were asked
Why do you wanna join us?
Where do you stay?
How was your interview experience with us?