Nested List In Python Hackerrank Solution

HackerRank version runs in under a second and a half for 100,000 trials. It is a very general structure, and list elements don't have to be of the same type: you can put numbers, letters, strings and nested lists all on the same list. gitignore file to avoid uploading it accidentally. Example: Python if Statement. A list in Python is an ordered group of items (or elements). Get more in-depth training in Python with our Python for Data Learning Path. List comprehension is generally more compact and faster than normal functions and loops for creating list. Python is a popular general purpose programming language used for both large and small-scale applications. Reload to refresh your session. Delete Nodes Greater than K. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Rate this: Solution 1. Python program to add two matrices Prerequisite : Arrays in Python , Loops , List Comprehension Program to compute the sum of two matrices and then print it in Python. Python Program to Check Leap Year using Nested If Statement This Python leap year program allows the user to enter any year and then it will check whether the user entered year is Leap year or not using the Python Nested If statement. Here DFS comes into play. On the nested VM, run ifconfig to confirm that the VM has an address in the virbr0 space, such as 192. Comprehensions in Python the Jedi way by Bjørn Friese is licensed under a Creative Commons Attribution-ShareAlike 4. You cannot access items in a set by referring to an index, since sets are unordered the items has no index. list comprehension,Nested Lists in Python,list of list,python list comprehension,. The instance's contents are kept in a regular list, which is accessible via the data attribute of UserList instances. HackerRank ‘Array Manipulation’ (Hard) Solution Solved live by M. Since the number of desired sublists may not evenly divide the length of the original list, this task is (just) a tad more complicated than one might at first assume. To do that, we can leverage nested list comprehensions:. This understanding is used again to help solve Project Euler Problem 6. Let me demonstrate. This can be done only with careful non-greedy application of a regular expression in the loop. In Python we can implement a matrix as nested list (list inside a list). Python is a high-level, interpreted, interactive, and object-oriented scripting language. Lists are used in almost every program written in Python. ' ***Solution to Day 19 skipped, because Pyhton implementation was not available at the time of completion. Of course, the flattening function should be also changed to store the structure of the list and the shape of the numpy arrays. Allows duplicate members. Python Challenge home page, The most entertaining way to explore Python. 2 to 2831 GFLOPS on a single node. List comprehension is a complete substitute for the lambda function as well as the functions map(), filter() and reduce(). Get a comprehensive, in-depth introduction to the core Python language with this hands-on book. Then working out the alphabetical value for each name, multiply this value by its alphabetical position in the list to obtain a name score. Python Configuration File. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, JavaScript) and span multiple computer science domains. Hackerrank Solutions. The values in list are called elements or sometimes items. Note that, keeping this in mind, the code examples in this tutorial are in Python 3. In Python List, there are multiple ways to print the whole List with all the elements, but to print a specific range of elements from the list, we use Slice operation. We just use the built-in function sum() on the list of integers that we get from the input(). :) Practicality beats purity :) Thanks. Welcome to the LearnPython. Python | Check if all the values in a list are less than a given value Striver If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. Python has a construct called the Global Interpreter Lock (GIL). It works like this: " for all elements in a list, do this " Let's say that you have a list. In a classroom of N students, find the student with the second lowest grade. The instance’s contents are kept in a regular list, which is accessible via the data attribute of UserList instances. This blog contain solutions of all Data Structure & Algorithm problems in C, C++, Java, Python, C# etc. ' ***Solution to Day 19 skipped, because Pyhton implementation was not available at the time of completion. Python if Statement Flowchart. You have to perform M operations on the list and output the maximum of final values of all the N elements in the list. Python program to add two matrices Prerequisite : Arrays in Python , Loops , List Comprehension Program to compute the sum of two matrices and then print it in Python. See PEP 202. split() getattr(d,inp[0])(*[inp[1]] if len (inp)> 1 else[]) print(*[item for item. So technically, you can use Ansible to install a compatible version of Python using the raw module, which then allows you to use everything else. Learn Python Programming This site contains materials and exercises for the Python 3 programming language. c, loader/shp2pgsql-gui. Internally, it has a contiguous array for referencing to other objects and stores a pointer to the array variable and its length in the list head structure. Unlike C++ or Java, Python Programming Language doesn’t have arrays. The sum of these multiples is 23. ) Although the nested list works just fine, and the Python interpreter doesn't care, I would choose tuples here because they would convey the right connotation. List Comprehensions x,y,z,nを標準入力から得て、それをX,Y,Zの3次元座標で考えた時に取ることのできる点を. I noticed that the first list, scores, is already sorted, we just have to get rid of duplicates to have a matching between the position and the score Alice has to get to achieve that ranking. Hackerrank / InterviewStreet Algorithm Problem Solution List Game Theory Section Here are the solutions of some of the algorithm problems post in Hackerrank / InterviewStreet algorithm domain. Configure Python on Azure App Service (Windows) - Visual Studio | Microsoft Docs. Simple codes in how to use nested loops, There is only the code, no explanation (not good at explaining anything:D) So, just try to understand the program Hope this will help as much people as possible Lets Stop talking and just begin OK Here we go! 1. One Python Cookbook. Nowadays Python. The first approach is to use a row oriented approach using pandas from_records. These operations don't map 1:1 to the Datastore's native operations; thus they are a little quirky and. You have to print a list of all possible. Author JohnCanessa Posted on January 17, 2017 Categories Python Tags HackerRank Python If-Else challenge Leave a Reply Cancel reply Your email address will not be published. JAVA hackerrank data structres JAVA An array is a type of data structure that stores elements of the same type in a contiguous block of memory. 3, this unique cookbook is for experienced Python programmers who want to focus on modern tools and idioms. Interesting Python practice problems from the internet! [Nested List. The internal type is "ndarray" or to be even more precise "C is an instance of the class numpy. Unlike C++ or Java, Python Programming Language doesn’t have arrays. It's pretty straightforward. Hackerrank / InterviewStreet Algorithm Problem Solution List Game Theory Section Here are the solutions of some of the algorithm problems post in Hackerrank / InterviewStreet algorithm domain. This applies to any block level elements nested in a list, including paragraphs, sub-lists, blockquotes, code blocks, etc. Body starts with an indentation and the first unindented line marks the end. Python | Sort a list according to the second element in sublist In this article, we will learn how to sort any list, according to the second element of the sublist present within the main list. Write a function called nested_sum that takes a nested list of integers and add up the elements from all of the nested lists. SORRY ABOUT THE POTENTIAL CONFUSION This depends on how you want to sort your nested list. Description. If you follow this complete playlist of python tutorial surely you will learn everything about python programming language. Typical mutables are lists and dictionaries: All lists have mutating methods, like list. - nested-list. The characters of hackerrank are bolded in the string above. The easiest way to think of an assertion is to liken it to a raise-if statement (or to be more accurate, a raise-if-not statement). zip returns a list of tuples, where each tuple contains the i-th element from each of the argument sequences. The module provides a way for applications. The explanation of solution may not be detailed but every one can view my code in github. 2 or Python 2. In an array, , of. All downstream fishes should be put on a stack. you could also work with nested list comprehensions. Java Project Tutorial - Make Login and Register Form Step by Step Using NetBeans And MySQL Database - Duration: 3:43:32. Here is an example to make a list with each item being increasing power of 2. The value in list B with 0 means a fish flowing upstream, and with 1 means a fish flowing downstream. Reload to refresh your session. In a classroom of N students, find the student with the second lowest grade. (four 1's at depth 2, one 2 at depth 1). In this post, we will talk about Python list functions and how to create, add elements, append, reverse, and many other Python list functions. In this document, we explore the various techniques for sorting data using Python. Searching for a 10 lines long paragraph in Google is not an acceptable option. Functions are a convenient way to divide your code into useful blocks, allowing us to order our code, make it more readable, reuse it and save some time. HackerRank Solutions Over the course of the next few (actually many) days, I will be posting the solutions to previous Hacker Rank challenges. 3, this unique cookbook is for experienced Python programmers who want to focus on modern tools and idioms. For example X = [[1, 2], [4, 5], [3, 6]] would represent a 3x2 matrix. Python HackerRankで使用したもののアウトプットをしていきます。 どんどん追記していけたらいいなと思っています。 1. Like say a list of Strings, which we know under the covers a String is a List of Char [Char] what if the list is empty ? Do we have to check for that possibility and handle that? That doesn’t seem very helpful. With this post, I intend help each one of you who is facing this trouble in python. Short Problem Definition: HackerRank, Python, Rust. Allows duplicate members. We have 2 cells in the open list: (1, 2) and (0, 3). Then you’ll move on to building your very own webapp, exploring database management, exception handling, and data wrangling. ndarray": type (C). Long story short, the code above is in Python3, so suit yourself. However, we should avoid writing very long list comprehensions in one line to ensure that code is user-friendly. documentation > usage > python Python. So I tried to use a count variable to keep track of remaining length. In my opinion, list comprehensions are the most elegant of the solutions discussed in this post. Under Python 2. reverse() method. Nested For Loops. Here is the summary of Hackerrank data structure problem solution list. Problem description: fish. Note: If there are multiple students with the same grade, order their names alphabetically and print each name on a new line. (Sorry for the broken formatting, but it's not possible to code-format in replies here in HR. On Medium, smart. My solution was a little Bluetooth adapter that I picked up on eBay for around. In Python and most other OOP programming languages, multiplying two numbers by each other is a pretty straightforward process. The list is one of the most popular data structure provided by the python. Input Format. You might have noticed that methods like insert, remove or sort that only modify the list have no return value printed - they return the default None. ) Although the nested list works just fine, and the Python interpreter doesn't care, I would choose tuples here because they would convey the right connotation. These lists have often the qualities of sets, but are not in all cases sets. reverse() Python lists can be reversed in-place with the list. com Salesforce BankBazaar Citrix Synopsys Moonfrog. Grading Students Hackerrank Algorithm Solution Solving code challenges on HackerRank is one of the best ways to prepare for programming interviews. list can be any iterable, for example a real Python list or a UserList object. On the nested VM, run ifconfig to confirm that the VM has an address in the virbr0 space, such as 192. Python Challenge home page, The most entertaining way to explore Python. What you have now is a list containing the temperature value in celsius, but the solution requires it to be a dictionary. The value k needs to be added to all the elements ranging from index a through b (both inclusive). REPL Console for Python, Ruby, and Javascript. Important thing about a list is that items in a list need not be of the same type. Python is a popular general purpose programming language used for both large and small-scale applications. https://micronews. emphasis mine. Understanding Data Types in Python 3 September 14, 2016 In this tutorial, we will go over the important data types native to Python: integer, float, Boolean, string, list, tuple, and dictionary. It works like this: " for all elements in a list, do this " Let's say that you have a list. A robust, clean, and performant solution wouldn't be easy but would likely involve some general purpose stack overflow protection that periodically makes sure there is enough stack remaining for C Python to function correctly. Assertions in Python. Body starts with an indentation and the first unindented line marks the end. 1 This is a design principle for all mutable data structures in Python. summary list. py to your. In this course you will learn how to write code, the basics and see examples. Lists and tuples are like arrays. But a simple solution is always better than a complex one. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Searching for a 10 lines long paragraph in Google is not an acceptable option. on the first line and the contents of input string on the. Description. Categories Algorithms, Fun Coding, Hacker Rank, Interview Puzzles, Java Tags 2D array, algoritms, data structres, HackerRank, Interview, InterviewStreet, Java, Puzzles Leave a Reply Cancel reply This site uses Akismet to reduce spam. You can remove values from the list, and add new values to the end. , hackerrank hello world solution, Day 26: Nested Logic hackerrank, print hello, world. std stands for standard, stdin stder and stdout, stdin means input e. Page 1 of 11 - Nested For Loop [EXAMPLES!] - posted in Java Tutorials: Hi, Here is a collection of few examples for NESTED FOR LOOP. I completed the "Nested Lists" challenge on HackerRank, and would love any feedback on my code. In case of any feedback/questions/concerns, you can communicate same to us through your comments and we shall get back to you as soon as possible. For the first time, we surveyed the HackerRank community to get a pulse on developer skills (when did they push code for the first time, how do they learn coding, what are the favorite languages and frameworks, what do they want in a job, what hiring managers want in a candidate, and more). Tuples like strings are immutables. Configure Python on Azure App Service (Windows) - Visual Studio | Microsoft Docs. We have used nested list comprehension to iterate through each element in the matrix. Example 1: Given the list [[1,1],2,[1,1]], return 10. Duplicate Nested Lists. In this post, we will talk about Python list functions and how to create, add elements, append, reverse, and many other Python list functions. Project Euler 14 Solution Runs 0. We can treat each element as a row of the matrix. Below is the detailed explanation of the idea behind solution. I find your solution ugly and verbose because all the logic is tied up in one long if/else statement. This is a great option to reverse the order of a list (or any mutable sequence) in Python. In an array, , of. Here's how he figured it out: The sequence of numbers [1, 3, 6, 10, 15,…] are called the triangular. None and 0 are interpreted as False. Here is the summary of Hackerrank data structure problem solution list. SQL Notes: Hackerrank African Cities. Short Problem Definition: HackerRank, Python. Some more cool ideas to think about are modifying this script to iterate through the rest of the pages of this example dataset, or rewriting this application to use threads for improved speed. Thank you for reading through the tutorial. Now, once you've chosen that, you iterate over all [math]L[/math] possible rods and check what is the maximum gain you can have. [say more on this!] Such tables are called matrices or two-dimensional arrays. ) Sample Input :- 1 2 3 4. Confused out of my mind regarding linked lists in Python Hackerrank solution keeps timing out, help with speeding my code up? " instead of your nested for. My Hackerrank profile. Python Overview Python Built-in Functions Python String Methods Python List Methods Python Dictionary Methods Python Tuple Methods Python Set Methods Python File Methods Python Keywords Module Reference Random Module Requests Module Python How To Remove List Duplicates Reverse a String Python Examples Python Examples Python Exercises Python. Looking for Python training with an expert live instructor? We have trained 62,586 students from 11,834 organizations. This one is pretty simple, and it is specific to the 3x3 board above. Given the names and grades for each student in a Physics class of students, store them in a nested list and print the name(s) of any student(s) having the second lowest grade. In Python, the body of the if statement is indicated by the indentation. Then working out the alphabetical value for each name, multiply this value by its alphabetical position in the list to obtain a name score. It's much more effective than picking up an interview preparation book that's written in another programming language, and trying to port all the code over yourself. The list is not sorted. In the past few years, our users have landed jobs at top companies around the world. Insert a Node at the Tail of a Linked List-hackerrank-algorithm-solution Unknown September 02, 2017 cpp , hackerrank 0 Comments You are given the pointer to the head node of a linked list and an integer to add to the list. How to Create Python List? To create python list of items, you need to mention the items, separated by commas, in square brackets. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. That's why we brought these 30 Python programming questions on List, Tuple, and Dictionary in this blog post. You have to print a list of all possible. Once you have a grasp of how they work, you can perform concise and effective iterations with very little code. Simple Array Sum — Hackerrank. The sum of these multiples is 23. In Python List, there are multiple ways to print the whole List with all the elements, but to print a specific range of elements from the list, we use Slice operation. Nested Lists. I did not reply, but I had the idea now and could not wait, and it fitted my needs. Ruby or Python). Nested lists: processing and printing In real-world Often tasks have to store rectangular data table. Here's a very simple way of doing this: [code]numbers = input("Enter numbers: "). Allows duplicate members. Below is the detailed explanation of the idea behind solution. A robust, clean, and performant solution wouldn't be easy but would likely involve some general purpose stack overflow protection that periodically makes sure there is enough stack remaining for C Python to function correctly. List comprehension allows us to write concise codes and we must try to use them frequently in Python. 'Solutions for HackerRank 30 Day Challenge in Python. On Medium, smart. (Although I do understand that when coding in the real world where things aren't simply academic in nature, you'd want code to be pretty, clean, and concise). Actually we can do this list-in-a-list thingy infinite times – and believe it or not, this simple concept (the official name is “nested lists,” by the way) will be essential when it comes to the actual Data Science part of Python – e. Use this text box to input your dirty-formatted python code, and get a nice, well ordered file. Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Page 1 of 11 - Nested For Loop [EXAMPLES!] - posted in Java Tutorials: Hi, Here is a collection of few examples for NESTED FOR LOOP. We start DFS on non-visited nodes and mark the visited ones. See PEP 202. Program to Implement - Best Time to Buy and Sell Stock Say you have an array for which the ith element is the price of a given stock on day i. Mini-Max Sum Hackerrank. This Python program allows the user to enter any positive. HackerRank 'Diagonal Difference' Solution. The Proposed Solution It is proposed to allow conditional construction of list literals using for and if clauses. Go to the editor Click me to see the sample solution. To hold a sequence of values, then, it provides the ‘list’ class. Post navigation. join('. It is dangerous to flatten deeply nested JSON objects with a recursive python solution. A good example of this can be seen in the for loop. You’re given the po. append(physics_students[i][1]) grades_list. ) Although the nested list works just fine, and the Python interpreter doesn't care, I would choose tuples here because they would convey the right connotation. These lists have often the qualities of sets, but are not in all cases sets. Actually we can do this list-in-a-list thingy infinite times – and believe it or not, this simple concept (the official name is “nested lists,” by the way) will be essential when it comes to the actual Data Science part of Python – e. Rate this: Solution 1. In our example, five tuples are passed to the function. The Python Discord. It will immensely help anyone trying to crack an exam or an interview. All downstream fishes should be put on a stack. · HackerRank, Python. To print the 2nd element in the 1st list ("b"), use print a[0][1] - For the 2nd element in 3rd list ("g"): print a[2][1] The first brackets reference which nested list you're accessing, the second pair references the item in that list. grades_list=[] for i in range(N): grades_list. Grading Students Hackerrank Algorithm Solution Solving code challenges on HackerRank is one of the best ways to prepare for programming interviews. You might want to call it something like databaseconfig. Below is the detailed explanation of the idea behind solution. A list is a data structure in Python that is a mutable, or changeable, ordered sequence of elements. Go to the editor Sample List : (8, 2, 3, 0, 7) Expected Output: 20 Click me to see the sample solution. Nested Lists Task. Instead of creating a flat list containing strings and floats, representing the names and areas of the rooms in your house, you can create a list of lists. You might have noticed that methods like insert, remove or sort that only modify the list have no return value printed - they return the default None. Problem Answer Time (ms) Solution; 1: 233168: 157: Show solution 1 ''' 2 If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. However, many implementations do not enforce this rule and allow less than 4 spaces of indentation. The value k needs to be added to all the elements ranging from index a through b (both inclusive). If you would like to learn Python thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. Here's a very simple way of doing this: [code]numbers = input("Enter numbers: "). 89: [email protected]:~$ ifconfig; Start a dummy webserver on port 8000: [email protected]:~$ python -m SimpleHTTPServer; Detach from the screen session with Ctrl+A, Ctrl+D. You saw this many times with your use of print when you put the text you want to go inside the string inside " or ' after the print to print the string. What's this line doing? It's saying: Give me the VALUE at the current row and column of M (which is 0) Now find the INDEX of that value in. Solutions to the first 40 problems in functional Python; Problem 1: Add all the natural numbers below 1000 that are multiples of 3 or 5. Option 1: list. Body starts with an indentation and the first unindented line marks the end. (Note that operations which share a table row are performed from left to right. r/learnprogramming: A subreddit for all questions related to programming in any language. This understanding is used again to help solve Project Euler Problem 6. var: var reads each element. Where it gets a little more complicated, however, is when you try to multiply two matrices by each other. [say more on this!] Such tables are called matrices or two-dimensional arrays. You cannot access items in a set by referring to an index, since sets are unordered the items has no index. The easiest way to think of an assertion is to liken it to a raise-if statement (or to be more accurate, a raise-if-not statement). Here is the summary of Hackerrank data structure problem solution list. Once those are applied the problem becomes mostly trivial to solve. Think Python 2e is a Free Book. For every operation, you are given three integers a, b and k. Linked lists are among the simplest and most common data structures. Welcome to Practice Python! There are over 30 beginner Python exercises just waiting to be solved. Python | Check if all the values in a list are less than a given value Striver If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. Merging communities. In the iterable part of your nested list comprehension, use range() to count 5 rows - that is, create a list of values from 0 to 4. 3, this unique cookbook is for experienced Python programmers who want to focus on modern tools and idioms. You saw this many times with your use of print when you put the text you want to go inside the string inside " or ' after the print to print the string. DFS problem. Tuples like strings are immutables. Problem- Let's learn about list comprehensions! You are given three integers x, y and z representing the dimensions of a cuboid along with an integer N. @StefanPochmann I don't like the try except block too much above, as it assumes the order of function calls of hasNext() and next(). Python Dictionary(Dict): Update, Cmp, Len, Sort, Copy, Items, str Example. Apache Server at mostracinemaconquista. For example, if you want to move a print statement from the main part of the program into. It's pretty straightforward. (I use your function to flatten nested generators). In Python any table can be represented as a list of lists (a list, where each element is in turn a list). Python if Statement Flowchart. Given the names and grades for each student in a Physics class of students, store them in a nested list and print the name(s) of any student(s) having the second lowest grade. HackerRank 'Diagonal Difference' Solution. Iterate over the fixed length of rods i. Configure Python on Azure App Service (Windows) - Visual Studio | Microsoft Docs. Then working out the alphabetical value for each name, multiply this value by its alphabetical position in the list to obtain a name score. One of the easiest way to clear the HackerRank coding test is referring the HackerRank Coding Questions with Answers PDF. Moving them in is indenting. 3, this unique cookbook is for experienced Python programmers who want to focus on modern tools and idioms. But a simple solution is always better than a complex one. https://www. Solving the hackerrank problem "Between two sets" using Python and a little bit of math. Nested List Weight Sum. when we create some multidimensional numpy arrays to run correlation analyses… but let’s not get. Example: Python if Statement. Amazon Microsoft Samsung Adobe Accolite Zoho Paytm MakeMyTrip Snapdeal Flipkart Morgan Stanley Walmart Goldman Sachs Google OYO Rooms FactSet D-E-Shaw Oracle MAQ Software SAP Labs Ola Cabs Hike VMWare Cisco Visa Qualcomm Facebook Directi Linkedin Payu Wipro Intuit Yahoo TCS Housing. Once the developer has developed their solution, the next step is articulating it through code. Surendra patil, learing python, #include int main (int argc,char *argv[]) { int i,j,sum = 0,range = 1000;. Lists are used in almost every program written in Python. It uses English keywords frequently, whereas the other languages use punctuation, and it has fewer syntactical constructions than the other languages. - nested-list. This blog contain solutions of all Data Structure & Algorithm problems in C, C++, Java, Python, C# etc. 'Solutions for HackerRank 30 Day Challenge in Python. Lists and tuples are like arrays. As you can see I followed same logic but in Python it doesn't work. Note: If there are multiple students with the same grade, order their names alphabetically and print each name on a new line. Python | Check if all the values in a list are less than a given value Striver If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. {"categories":[{"categoryid":387,"name":"app-accessibility","summary":"The app-accessibility category contains packages which help with accessibility (for example. Unknown Arrays and Sorting, c++, c++ program, cpp, hackerrank, Hackerrank Counting Sort 2 Solution No comments Problem Statement Often, when a list is sorted, the elements being sorted are just keys to other values. In python 2 , input takes only integer inputs and raw_input takes strings, ints and floats. We added REPL console support for Python, Ruby, and Javascript. Join over 5 million developers in solving code challenges on HackerRank, one of the best ways to. If you would like to learn Python thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. For the first time, we surveyed the HackerRank community to get a pulse on developer skills (when did they push code for the first time, how do they learn coding, what are the favorite languages and frameworks, what do they want in a job, what hiring managers want in a candidate, and more). Python Dictionary(Dict): Update, Cmp, Len, Sort, Copy, Items, str Example. Language Processing Python R Redis. Today, he has an array A consisting of N positive integers. Grading Students Hackerrank Algorithm Solution Solving code challenges on HackerRank is one of the best ways to prepare for programming interviews. First row can be selected as X[0] and the element in first row, first column can be selected as X[0][0]. A tuple, on the other hand, has a connotation of being a fixed number of elements, possibly of different data types. You can use any object (such as strings, arrays, lists, tuples, dict and so on) in a for loop in Python. ) Although the nested list works just fine, and the Python interpreter doesn't care, I would choose tuples here because they would convey the right connotation. A few readers also commented on that language property. The most amazing facts of this website are to you can find all Hacker Rank and other programming. These packages can be integrated with Python applications that, in turn, can be shared with desktop users or deployed to web and enterprise systems, royalty-free. This massive adoption of Python by programmers is a testament to its impressive strength and speed. Shows namespaces, types and members defined in the solution. We just use the built-in function sum() on the list of integers that we get from the input(). To print the 2nd element in the 1st list ("b"), use print a[0][1] - For the 2nd element in 3rd list ("g"): print a[2][1] The first brackets reference which nested list you're accessing, the second pair references the item in that list.