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The Technology Maker Interview Questions and Answers

Updated 5 Feb 2024

Q1. Maximum Value of Modulus Expression Problem

You are provided with two arrays ARR1 and ARR2 both having an equal length N. Your objective is to compute the maximum value of the expression:

|ARR1[ i ] - ARR1[ j ]...read more

Ans.

Compute the maximum value of a given expression involving two arrays.

  • Iterate through all possible pairs of indices i and j to calculate the expression value

  • Keep track of the maximum value found so far

  • Use absolute function to handle negative values appropriately

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Q2. Colorful Knapsack Problem

You are given a set of 'N' stones, each with a specific weight and color. The goal is to fill a knapsack with exactly 'M' stones, choosing one stone of each color, so that the total we...read more

Ans.

The goal is to fill a knapsack with exactly 'M' stones, one of each color, minimizing unused capacity.

  • Iterate through stones, keeping track of weights for each color

  • Sort stones by weight and color, then select one stone of each color

  • Calculate total weight for selected stones and find minimum unused capacity

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Q3. Longest Palindromic Substring Problem Statement

You are provided with a string STR of length N. The task is to find the longest palindromic substring within STR. If there are several palindromic substrings of t...read more

Ans.

Given a string, find the longest palindromic substring within it, returning the one that starts with the smallest index if multiple substrings qualify.

  • Iterate through the string and expand around each character to find palindromes

  • Keep track of the longest palindrome found so far

  • Return the longest palindromic substring that starts with the smallest index

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Q4. Reverse Linked List Problem Statement

Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.

Input:

The first line of input is an integer T, rep...read more
Ans.

Reverse a singly linked list by altering the links between nodes.

  • Iterate through the linked list and reverse the links between nodes

  • Keep track of previous, current, and next nodes while reversing

  • Update the head of the linked list to the last node after reversing

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Q5. 0-1 Knapsack Problem Statement

A thief plans to rob a store and can carry a maximum weight 'W' in his knapsack. There are 'N' items, with the i-th item weighing wi and having a value vi. Determine the maximum v...read more

Ans.

The 0-1 Knapsack Problem involves maximizing the value of items in a knapsack while respecting weight constraints.

  • Iterate through all possible combinations of items to find the optimal solution.

  • Use dynamic programming to store and reuse subproblem solutions.

  • Consider the weight limit and value of each item to make the best choice.

  • Example: For input [1, 2, 3], [10, 15, 40], and weight limit 6, the maximum value is 55.

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Q6. What are usage of artificial intelligence in the process industry?

Ans.

Artificial intelligence is used in the process industry for optimizing operations, predictive maintenance, and quality control.

  • Optimizing operations: AI algorithms can analyze large amounts of data to identify inefficiencies and suggest improvements in production processes.

  • Predictive maintenance: AI can analyze sensor data to predict equipment failures and schedule maintenance before breakdowns occur, reducing downtime and costs.

  • Quality control: AI can analyze data from senso...read more

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