7. On the upside, it's fairly space efficient, but unless you're planning on allowing giant boards, that shouldn't make much of a difference. To learn more, see our tips on writing great answers. Gameplay Demo Aftermath of few hours of creating a game of Minesweeper. Given the total number of rows and columns in the theater (nRows and nCols, respectively), and the row and column you're sitting in, return the number of people who sit strictly behind you and in your column or to the left, assuming all seats are occupied. A ticket number is considered lucky if the sum of the first half of the digits is equal to the sum of the second half. Last night you had to study, but decided to party instead. Thanks Felicity for your post. Chess Notation: Given some integer, find the maximal number you can obtain by deleting exactly one digit of the given number. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. It's recommended to use them when writing any string statement that contains variables. This comment is problematic for many reasons. A non-negative integer representing the heaviest weight your friend can lift with his or her left arm. The local part, however, also allows a lot of different special characters. The building is represented by a rectangular matrix of rooms, each cell containing an integer - the price of the room. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. On subsequent games, I failed again because of this input-handling problem. A string of lowercase latin letters. Your MineBoard class explicitly inherits from object. Find the minimal number of moves required to obtain a strictly increasing sequence from the input. How Intuit democratizes AI development across teams through reusability. Please note the use of the exception (that was the hint regarding the "x"s). each minute from the 2nd up to 10th (inclusive) costs min2_10 cents. Jim from JimShapedCoding developed this course. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Python famously has a concept of DRY (Don't Repeat Yourself), which means that when you're starting to see multiple calls to a function, or repeating the same lines, that there is an opportunity for refactoring. Here you can look at several examples of correct and incorrect email addresses. "what about, are you this instead?" How do I concatenate two lists in Python? This is because the code begins running as soon as Python loads it, when the intent of the documentor was just to analyse the code. But more importantly, the reason why it is hard to give it a proper name is that it appears to be doing too much. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Python: slicing a multi-dimensional array. You should choose one style and stick with it. Return an answer as the sum of digits that the digital timer in the format hh:mm would show. For inputArray = [1, 1, 1], the output should be arrayChange (inputArray) = 3. Just a minor thing, the "strip" function I used is on the input from the user, not the 'instruction' itself. And I get the code formatted according to my preferences (e.g. Solutions for challenges proposed on CodeFights.com. You can pass any iterable to the list constructor to create a list: You import pdb but never use it. First, the string is divided into the least possible number of disjoint substrings consisting of identical characters, for example, "aabbbc" is divided into ["aa", "bbb", "c"], Next, each substring with length greater than one is replaced with a concatenation of its length and the repeating character, for example, substring "bbb" is replaced by "3b". true if inputString is a palindrome, false otherwise. That's great post but the task was for 1 hour. Recovering from a blunder I made while emailing a professor. A string consisting of English letters, punctuation marks, whitespace characters and brackets. First you create a list of indices, set the mines and then.. setAdjacentMines - why? In my coding interview for a company, I got the question to write a Minesweeper game. "you are? Is there a proper earth ground point in this switch box? 'E' represents an unrevealed empty square, 'B' represents a revealed blank square that has no adjacent mines (i.e., above, below, left, right, and all 4 diagonals), digit ( '1' to '8') represents how many mines are adjacent to this revealed square, and 'X' represents a revealed mine. It must be the result of doing many leetcode exercises recently and I just tend to save memory anytime possible. F-strings: Python 3.6 and later have this capability; f-strings can make reading print statements much easier. Here's the rooms matrix with unsuitable rooms marked with 'x': [input] array.array.integer matrix Check if all digits of the given integer are even. Its a site to ask questions My question is what is the optimal complexity for this. Note: The randint function can only be used after importing the random library. Why are physically impossible and logically impossible concepts considered separate in terms of probability? It should probably be split into two classes. That one was expected after seeing isOver being defined. Imports: Unused imports hint that perhaps you're not fully aware of all the actions of your scripts? So the answer is 9. Do new devs get fired if they can't solve a certain bug? Input validation is a very important topic in programming, due to all sorts of bugs and attacks like Cross-Site-Scripting (XSS) and SQL Injection. the first minute costs 3 cents, which leaves you with 20 - 3 = 17 cents; the total cost of minutes 2 through 10 is 1 * 9 = 9, so you can talk 9 more minutes and still have 17 - 9 = 8 cents; each next minute costs 2 cents, which means that you can talk 8 / 2 = 4 more minutes. [input] integer n Minesweeper constraints. Example. Classes exposing private attributes as public: Proper OOP ensures that the internals of how classes achieve their magic are hidden. It only takes a minute to sign up. That is why any room that is free or is located anywhere below a free room in the same column is not considered suitable for the bots. For the other grid, the output should be false: each of the nine 3 3 sub-grids should contain all of the digits from 1 to 9. 2-dimensional array of integers representing a rectangular matrix of the building. A string consisting of lowercase latin letters a-z. In fact, it should probably be Cell's __str__ method instead. Then you can add a comment explaining that you are specifically using solution B even though it looks like much simpler solution A should also work, but it actually doesn't work because of issue X. Movie with vikings/warriors fighting an alien that looks like a wolf with tentacles. Yes, you are correct. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Help him figure out the minimum number of additional statues needed. output_matrix = [output_matrix [i] [1:len (output_matrix)-1] for i in range (1, len (output_matrix)-1 . One of them is the IPv4 address. [input] string s They want to eat as much candy as they can, but each child must eat exactly the same amount of candy as any other child. This can be done by: Note: There is a need to import the os library, before using this feature. A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. If nothing happens, download Xcode and try again. After we land on a cell with mine, we need to display all the mines in the game and alter the variable behind the game loop. This is done by: The function check_over(), is responsible for checking the completion of the game. Game Loop is a very crucial part of the game. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I could guess the w and h, but how could a caller know that k is the number of mines? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. no, since [-1] is a valid index (counting from the right) ;-). Making statements based on opinion; back them up with references or personal experience. The standard (IEEE 802) format for printing MAC-48 addresses in human-friendly form is six groups of two hexadecimal digits (0 to 9 or A to F), separated by hyphens (e.g. A good name should be intention-revealing. Looking at the line after having a coffee :) it's a good idea to separate the messge to the user (use print(msg)), and what input you're receiving (, How Intuit democratizes AI development across teams through reusability. A few superficial things: Games like this are perfect for object oriented code. Check out the image below for better understanding: A non-empty rectangular matrix consisting of boolean values - true if the corresponding cell contains a mine, false otherwise. Theoretically Correct vs Practical Notation. About an argument in Famine, Affluence and Morality, Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Cannot retrieve contributors at this time. Thanks for taking your time to write such an detail answer. The last candidate can't win no matter what (for the same reason as the first candidate). Funny that we came to the dual layer / dual classes approach seperately. Can I tell police to wait and call a lawyer when served with a search warrant? Let's define digit degree of some positive integer as the number of times we need to replace this number with the sum of its digits until we get to a one digit number. click is used as a method name. A non-empty rectangular matrix consisting of boolean values - true if the corresponding cell contains a mine, false otherwise. The duration of your ride, in minutes. Generally speaking, comments are a code smell. You wrote that you're going for coding interviews, so I'll focus on various aspects that will be looked at by interviewers rather than pieces of code which other respondents already have. An example of what I mean is the print_layout method. So, you should only use two different ways of writing the same thing IFF you actually want to convey some extra information. Do you see how this might be confusing to someone that is reading your code? I don't exactly get what it is supposed to do at first glance, even after looking at the conventions. The complete move therefore looks like the letter L. Check out the image below to see all valid moves for a knight piece that is placed on one of the central squares. recursive (d) /* get the value of one lower d*/ - ( (mainarray [rownumber + ~- (d/3)] || 0) true if the given representation is correct, false otherwise. This abstraction would also allow us to move some of the methods out of MineBoard. To learn more, see our tips on writing great answers. Since two files cannot have equal names, the one which comes later will have an addition to its name in a form of (k), where k is the smallest positive integer such that the obtained name is not used yet. python. For one, it is placed in an awkward sport, in the middle of the class. Given an array of equal-length strings, check if it is possible to rearrange the strings in such a way that after the rearrangement the strings at consecutive positions would differ by exactly one character. [input] integer k Run code live in your browser. To learn more, see our tips on writing great answers. Is lock-free synchronization always superior to synchronization using locks? Factories, factory methods and/or private methods could play a role here. This means we need to check at 8 spots for each cell: Top left, Top Middle, Top Right, Middle Right, Middle Left, Bottom Left, Bottom Middle, and Bottom Right. Given a string, find out if it satisfies the IPv4 address naming rules. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. I have written this code in Python 3: def arrayChange (inputArray): original = inputArray [:] count = 0 if len (set (inputArray)) == 1: return ( (len (inputArray)-1)**2 + (len . The digits sum up to 0 + 4 + 0 + 0 = 4, which is the answer. Not the answer you're looking for? ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. You can then run Moonsweeper with: python. Find the longest word from the given string. I got an edit request that fixed the misspelling of "Congradulations" & "You're weldone" which is of course a joke on the misspelling of "Congratulations". The largest product of adjacent elements. Cannot retrieve contributors at this time 29 lines (28 sloc) 1.04 KB Raw Blame Edit this file E Help Ratiorg by writing a function that returns the sum of numbers that appear in the given inputString. The main problem is your shyness: you're afraid that you'll end up blocking the view (even if only for a couple of seconds) of all the people who sit behind you and in your column or the columns to your left. Since he likes to make things perfect, he wants to arrange them from smallest to largest so that each statue will be bigger than the previous one exactly by 1. If the IDE doesn't highlight these, possibly change your IDE. A good example is a set of code checking every minute "is it now 7am?" All that said, after I concluded the review I understood the class design and would be able to alter it. I'd have to print out the board to understand printLayout fully, but that's OK. (I've taken the liberty of converting all identifiers to PEP8 style.). Rectangular matrix of the same size as matrix each cell of which contains an integer equal to the number of mines in the neighboring cells. The first person goes into team 1, the second goes into team 2, the third goes into team 1 again, the fourth into team 2, and so on. Ticket numbers usually consist of an even number of digits. The complete code is also available on my Github account. It is guaranteed that the parentheses in s form a regular bracket sequence. A constraint satisfaction problem has a few parts: A set of variables. You can't just call it and check its result value in a test, for example, you actually have to capture the output from the terminal. There are three different scenarios: The game is finished as soon as the player selects a cell having a mine. Before starting the game, the script must provide a set of instructions for the player. The first one should probably just be MineBoard's __str__ method, and the second one should probably be part of the game logic rather than the board logic. You are given an array of integers. Given a string, check whether it is beautiful. Do read comments as they explain a lot and also every block of code. You signed in with another tab or window. The largest integer divisible by 3 and not larger than 10 is 9. Given n and firstNumber, find the number which is written in the radially opposite position to firstNumber. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If there is no such integer, return -1 instead. You could certainly make a case that OP's code doesn't need comments, but that's not true in general. Learn more about bidirectional Unicode characters. // Strings can be rearranged in the following way: "aa", "ab", "bb". Using the bike's timer, calculate the current time. Obviously I've read through your code several times and I understand what your code does - but I shouldn't have to read it more than once to fully comprehend the statements. Is there a single-word adjective for "having exceptionally strong moral principles"? pip3 install -r requirements.txt. Whenever a gamer, visits a 0-valued cell, all the neighboring elements must be displayed until a non-zero-valued cell is reached. minesweeper codesignal The Blog. This is done by: These values are to be hidden from the player, therefore they are stored in numbers variable. A limit involving the quotient of two sums. Python 2 is no longer supported since 1 January 2020 (i.e. A positive integer, designating the year. And then in play, the two calls to game.print_layout() can simply be replaced by print(game). Python supports chained comparisons, i.e. These methods should definitely be private. one with mines (and mine counts, for convenience) and one layer that shows if the position has been revealed or flagged. That is unnecessary in Python 3. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I am not a big fan of mixing I/O and computation. If you are part of a team, you should adapt your style to match the rest of the team. If a[i] = -1, then the ith position is occupied by a tree. Connect and share knowledge within a single location that is structured and easy to search. over 12.5 years). Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). Before creating the game logic, we need to design the basic layout of the game. Why is there a voltage on my HDMI and coaxial cables? A square grid is rather easy to create using Python by: The grid displayed in each iteration resembles the following figure: The 'M' symbol denotes the presence of a mine in that cell. Define a word as a sequence of consecutive English letters. Consider integer numbers from 0 to n - 1 written down along the circle in such a way that the distance between any two neighbouring numbers is equal (note that (0 and n - 1 are neighbouring, too). Also, I have them set to pretty aggressive settings, which can sometimes be annoying and overwhelming if you work with code that you haven't freshly written yourself. Given an array of integers, replace all the occurrences of elemToReplace with substitutionElem. Given a string, find the shortest possible string which can be achieved by adding characters to the end of initial string to make it a palindrome. I'd use regular expressions here, if just to weed out invalid commands. Not the answer you're looking for? The cells are opened when clicked and if the user clicks on a cell holding a mine then the user loses. It means that throughout the years your balance would be: Thus, it will take 3 years for your balance to pass the threshold, which is the answer. As we can see clearly, any number on the grid denotes the number of mines present in the neighbouring eight cells. An IP address is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. No description, website, or topics provided. For this particular concept of the game, a new data structure is used, namely, vis. February 7, 2022 . Finally, all the new strings are concatenated together in the same order and a new string is returned. mineList = [] # mine list. The trickiest part of creating the game is managing this scenario. For the first example below, the output should be true. My code is GPL licensed, can I issue a license to have my code be distributed in a specific MIT licensed project? 72 stands for H in the ASCII-table, so the first letter is H. This Is How To Create A Simple MineSweeper Game In Python! CodeSignal/Arcade/Intro/Intro - minesweeper.java Go to file Cannot retrieve contributors at this time 36 lines (35 sloc) 1.17 KB Raw Blame int [] [] minesweeper (boolean [] [] matrix) { //either this or a lot of ifs (ArrayIndexOutOfBoundsException MADNESS) int [] [] out = new int [matrix.length] [matrix [0].length]; Note that there are only two items and you can't bring more than one item of each type, i.e. Ideally, you would add a link to the pull request / code review / bug ticket where this issue is discussed in greater detail and maybe a link to a wiki page with a detailed explanation. So, for example, there is an obvious way that looks like it should work, but you tried it and it didn't work for a non-obvious reason. Given a string, find the number of different characters in it. Return an array of names that will be given to the files. In other words: if we reach the if at all, we know that all the ifs before it were false, because otherwise we would already have returned from the method. Personally I don't like it when click hides other functionality, I'd put that in a calling function. https://puzzlingclarity.com/index.php/2020/06/21/codesignal-arcade-intro-24-minesweeper/If you have questions or w. over 1.5 years), and Python 3 has been supported since 3 Dec 2008 (i.e. We use the function countAdjacentMines () to calculate the adjacent mines. What is the total maximum value of the items you can take with you, assuming that your max weight capacity is maxW and you can't come back for the items later? Also, mentioning that you know one or two patterns during your interview (you should know them well enough to write them on a whiteboard) can make you stand out from the crowd. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. This is not a code review site, so this question is off-topic, but your solution is not bad. The description: The border created by "x", as suggested by codefight's user, is to ensure that if mine is at the border of matrix, bomb count won't transfer to the other side. He knows a lot about art and his advice is usually good, but not this time: the performance turned out to be awfully dull. codesignal codesignal-solutions codesignal-arcade codesignal-interview . When I save your code into a file and open the file in my editor, I get a whopping, Now, to be fair, a lot of these are duplicates, because as I mentioned, I have multiple linters and analyzers set up. You signed in with another tab or window. You fixed the bad borders, but OP had a simple if, where you use exception handling as "regular" code logic. @KennyOstrom I don't see an issue with it. I always struggle to name things while coding. Asking for help, clarification, or responding to other answers. This version is a little different to the others out there in that it's supposed to start by asking the user how big the grid, then how many mines to insert. Given a string, find out if its characters can be rearranged to form a palindrome. Is there a single-word adjective for "having exceptionally strong moral principles"? It results in more readable code and a more logical flow than checking the bounds every time. When this count is equal to the total cells, except those containing mines, then the game is regarded as over. Off you go to explore the neighborhood. // You're strong enough to take both of the items with you. Does a summoned creature play immediately after being summoned by a ready action? If two or more candidates receive the same (maximum) number of votes, assume there is no winner at all. Sudoku is a number-placement puzzle. Given a string, return its encoding defined as follows: Given a position of a knight on the standard chessboard, find the number of different moves the knight can perform. Making statements based on opinion; back them up with references or personal experience. . [input] string inputString Please use descriptive variable names. You signed in with another tab or window. The literal 7 appears a few times in printLayout. Initially, plant is 0 meters tall. I've always find it incredulous that comments are discouraged in a blanket fashion. Return true if it is possible to remove one element from the array in order to get a strictly increasing sequence, otherwise return false. Manually raising (throwing) an exception in Python, How to upgrade all Python packages with pip. Starting off with some arrangement of mines we want to create a Minesweeper game setup. Thank you for taking your time ! A non-empty array of integers, sorted in ascending order. Tell - Don't Ask: When your code has a lot of if-this, then-that statements in it, it's clear the logic belongs with the data rather than continually asking the data "are you this?" 808 minutes mean that it's 13:28 now, so the answer should be 1 + 3 + 2 + 8 = 14. rev2023.3.3.43278. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. All you know thanks to the bike's timer is that n minutes have passed since 00:00. Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3? to use Codespaces. A non-empty string consisting of lowercase characters. I was given 15 minutes to solve this in a coding challenge, and still can't figure out for the life of me how someone would have approached this. Some rooms are free (their cost is 0), but that's probably because they are haunted, so all the bots are afraid of them. If nothing happens, download GitHub Desktop and try again. There is a requirement to check for completion of the game, each time a move is made. How to follow the signal when reading the schematic? It can be done by 'import os' at the start of the program. It is generally recommended to guard your main entry point using the familiar if __name__ == "__main__": construct. Learn more about bidirectional Unicode characters. Then you can use groups 1, 2 and 3 to retrieve the values. Solutions to LeetCode, CodeSignal, Hackerrank and more, specifically written in modern programming languages such as Swift and Kotlin. You are playing an RPG game. Upper or lower case, it shouldn't matter. With this solution, you don't have to shrink your result using pop(). If, instead, I copy&paste the code into my editor, even during the "paste" operation, it already starts automatically applying fixes, and I only get 139 Errors, 30 Warnings, and 21 Infos. If you kill the monster in front of you, you will gain more experience points in the amount of the reward. It applies game mechanics that offer developers of all skill levels online computer programming challenges for both instructional and recruiting purposes.