Python : Largest Number in an Array | Python Interview Questions | Data Engineer Interview Questions

Video 149: In this video, we'll explore how to find the largest number in an array. In this video, we explore four different approaches to solve the problem of finding the largest number in a list using Python. The task is straightforward: given a list of numbers, we aim to determine the largest number among them. *** Approach 1: General FOR loop *** We start with a classic approach using a for loop. This method iterates through each number in the list and updates a variable to hold the largest number found so far. *** Approach 2: Using the sorted() function *** Here, we utilize the sorted() function to sort the list of numbers in ascending order and then access the last element, which corresponds to the largest number. While this approach is concise, it may not be the most efficient for large lists due to the sorting operation. *** Approach 3: Using the Reversed sorted() function *** Similar to Approach 2, we sort the list in descending order using the reverse=True parameter in the sorted() function. Then, we retrieve the first element, which is the largest number. This method provides an alternative to Approach 2 with the reversed sorting order. *** Approach 4: Using the max() function *** In this approach, we leverage the max() function to directly find the largest number in the list. This method offers simplicity and efficiency, making it an elegant solution to the problem. When you see the time complexity, the FOR loop is of O(n) and the max() is also O(n). But the sorting approach is always O(n log n) and for larger array, this sorting might not be the right approach For a comprehensive understanding and practical demonstration, be sure to watch the entire video. Happy coding! code: https://github.com/jeganpillai/python_reference/blob/main/p0059_largest_number_in_an_array.py Follow me on, Website : https://growwithdata.co/ YouTube : https://www.youtube.com/@growwithdata TikTok : https://www.tiktok.com/@growwithdata LinkedIn : https://www.linkedin.com/company/growwithdata/ Facebook : https://www.facebook.com/growwithdata.co/ twitter : https://twitter.com/growwithdata_co WhatsApp : https://whatsapp.com/channel/0029VaF8pkb77qVNfbp5pA0S Instagram : https://www.instagram.com/growwithdata.co/ #recursive #countingalgorithm #list #looping #listmanipulation #uniquesubstring #longestsubstring #slicing #lineartimecomplexity #python #pythonquestions #pythontest #pythonprogramming #pythontutorial #python3 #pythonforbeginners #interviewquestions #interview #dataengineers #deinterview #pythoninterview #interviewquestions #leetcode #placementpreparation #meta #google #facebook #apple #netflix #amazon #google #faang #maanga #dataengineers #alphanumeric #nonalphanumeric #growwithdata #set #split #remove #pythonfunctions #tamil #tamilpython #tamilinterview #tamilinterviewlatest #PythonInterviewQuestions #PythonInterviewQuestionsAndAnswers #ImportantPythonInterviewQuestions #PrepareForPythonJobs #PythonJobInterviewPreparation #TopPythonInterviewQuestions #CommonPythonInterviewQuestions #growwithdata