Here you can look at several examples of correct and incorrect email addresses. I believe there must be a better solution in terms of space-time complexity and just in general. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Given two strings, find the number of common characters between them. The duration of your ride, in minutes. Thanks Felicity for your post. [input] string inputString A big clue is the fact that you have multiple comments talking about "cells" but you have no abstraction called "cell" in your code. Read on for a walkthrough of how the code works. There was a problem preparing your codespace, please try again. A tag already exists with the provided branch name. To learn more, see our tips on writing great answers. Assume that you are jumping from the point with coordinate 0 to the right. [input] string inputString 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. over 1.5 years), and Python 3 has been supported since 3 Dec 2008 (i.e. The first century spans from the year 1 up to and including the year 100, the second - from the year 101 up to and including the year 200, etc. Thanks !! If there are several possible answers, output the smallest one. Is it possible to rotate a window 90 degrees if it has the same length and width? The game rushes to a finish when flagging the correct tile, it doesn't leave the user in suspense whether they have chosen correctly or not. Given values experience, threshold and reward, check if you reach the next level after killing the monster. On the completion of input process, the row and column numbers are to be extracted and stored in 'r' and 'c'. However, any recommendations for optimisation are welcome! A string consisting of lowercase latin letters a-z. 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. I like the way the status is explicitly kept using the enum; it makes everything that more easy to follow. [input] array.integer a Find centralized, trusted content and collaborate around the technologies you use most. For one, it is placed in an awkward sport, in the middle of the class. Where does this (supposedly) Gibson quote come from? A string of lowercase latin letters. Given a string, find the number of different characters in it. Not the answer you're looking for? For example, as mentioned, if I simply save your code into a file and open that file in an editor, I get 157 Errors, 44 Warnings, and 21 Infos. For instance, it would allow you to flag already revealed positions, or maybe call setMine after the setup stage. //Any swap of any two elements either in a or in b won't make a and b equal. After taking care of these issues, the cell is flagged for a mine. Refresh the page, check Medium 's site. Is there a proper earth ground point in this switch box? Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). Single mine flagging due to lower-case f: I was surprised when I flagged a tile and the game ended with a mine going off. Code Review Stack Exchange is a question and answer site for peer programmer code reviews. is unnecessary. 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. [input] array.string inputArray February 7, 2022 . You are given an array of desired filenames in the order of their creation. Cannot retrieve contributors at this time 29 lines (28 sloc) 1.04 KB Raw Blame Edit this file E And I get the code formatted according to my preferences (e.g. As indicated in other questions: using a position type would make sense, e.g. I don't exactly get what it is supposed to do at first glance, even after looking at the conventions. You are given an array of integers. To gain some courage, you decide to calculate the number of such people and see if you can possibly make it to the exit without disturbing too many people. You might also get some constant-factor time wins by iterating over the lists with enumerate instead of doing the for index in range() thing, and minimizing the number of extra variables you allocate. "what about, are you this instead?" Individual pieces of candy cannot be split. 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. Always use words that explain to readers what the code does through proper variable names. The building is represented by a rectangular matrix of rooms, each cell containing an integer - the price of the room. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety Press Copyright Contact us Creators Advertise Developers Terms Privacy . Here's my proposal: (I like using dataclasses for things like this, but of course there are plenty of other options, like attrs or a plain Python class!). [input] string inputString 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. [input] integer upSpeed For each cell in the grid, we have to check all adjacent neighbours whether there is a mine present or not. Just a minor thing, the "strip" function I used is on the input from the user, not the 'instruction' itself. Styling contours by colour and by line thickness in QGIS. Here's just a couple that my editor flagged: Note that, if we ignore the afore-mentioned undefined types, then the naming accounts for a vast majority of the remaining issues my editor reports. Given a divisor and a bound, find the largest integer N such that: It is guaranteed that such a number exists. A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. Other letters can be obtained in the same manner. Given array of integers, remove each kth element from it. This can be done by: In the code, we choose a random number from all possible cells in the grid. All that said, after I concluded the review I understood the class design and would be able to alter it. As we mentioned before, there are two kinds of player input : In a normal kind of move, the row and column number are mentioned. CodeMaster has just returned from shopping. Making statements based on opinion; back them up with references or personal experience. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. If nothing happens, download GitHub Desktop and try again. Does Counterspell prevent from any further spells being cast on a given turn? So, your class declaration should just be. After some thought, your first guess is that each consecutive 8 bits of the code stand for the character with the corresponding extended ASCII code. okay, I'll do this action then". So the answer is 9. The function 'show_mines()' is responsible for it. 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. Oh well, a bit of unfairness never hurt :). So, let's fix those names. A tag already exists with the provided branch name. Is it suspicious or odd to stand by the gate of a GA airport watching the planes? How can I remove a key from a Python dictionary? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How do I concatenate two lists in Python? def minesweeper (array): # Vertical iterations for lineIndex in range (len (array)): line = array [lineIndex] outputLine = [] # Horizontal iterations for cellIndex in range (len (line)): # Check cell content if (line [cellIndex] == "O"): northIndex = lineIndex - 1 eastIndex = cellIndex - 1 southIndex = lineIndex + 1 westIndex = cellIndex + 1 After becoming famous, CodeBots decided to move to a new building and live together. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Regardless, thank you for your feedback. In one of your list comprehensions, you have unused variables: Neither i nor j are used. This makes it hard to reuse and hard to test. I just reversed your logic: I walk through the output field and add values from matrix. I'm doing codefight's challange: minesweeper. It applies game mechanics that offer developers of all skill levels online computer programming challenges for both instructional and recruiting purposes. You're given three integers, a, b and c. It is guaranteed that two of these integers are equal to each other. over 12.5 years). CodeSignal - Arcade - Intro - JS - Minesweeper Raw Minesweeper.js function minesweeper(matrix) { let height = matrix.length; let width = matrix[0].length; let outArray = Array.from(Array(height), () => new Array(width)); let mines = 0; for(let i = 0; i < height; i++) { for(let j = 0; j < width; j++) { mines = 0; if(i > 0) { Find the minimal length of the jump enough to avoid all the obstacles. At least I presume it is a margin of sorts. 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. You fixed the bad borders, but OP had a simple if, where you use exception handling as "regular" code logic. Find out how long it would take for your balance to pass a specific threshold with the assumption that you don't make any additional deposits. Given an array of the numbers of votes given to each of the candidates so far, and an integer k equal to the number of voters who haven't cast their vote yet, find the number of candidates who still have a chance to win the election. Given a rectangular matrix of characters, add a border of asterisks(*) to it. A set of values that can be assigned to the variables. The objective is to fill a 9 9 grid with digits so that each column, each row, and each of the nine 3 3 sub-grids that compose the grid contains all of the digits from 1 to 9. Then a nested loop on each position can go through the offsets to add 1 to the 'zero' cells when the neighbouring position is in range of the board and contains an "X": If you want to avoid messing with indexes and offsets, you can prepare 8 shifted copies of the board (one per direction) and use zip() to combine them into a tuple of neighbours for each position. by randomly "allocating" mines. Does Python have a ternary conditional operator? 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. 2-dimensional array of integers representing a rectangular matrix of the building. You can initialize a result matrix with a zero on "O" cells and "X" on the mine positions. First you create a list of indices, set the mines and then.. setAdjacentMines - why? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What is the duration of the longest call (in minutes rounded down to the nearest integer) you can have? We need to set up the positions of the mines randomly, so that the player might not predict their positions. I did not manage to finish the game in 1 hour at that time, so now I have written it again after the interview. Now, if you care about static type safety or not, that is a subjective opinion, so you may ignore these Errors. numCount = 0. mainList = [] # main board for the game. The third candidate can win even if none of the remaining candidates vote for him. A positive integer representing the daily growth. A non-negative integer representing the heaviest weight your friend can lift with his or her right arm. The region and polygon don't match. Are you sure you want to create this branch? This becomes a bit troublesome if you also allow "virtual clicks", as we find out later in the method. 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 important because when you put out code for others to use, if they begin accessing/modifying internal class variables and you release a new version with modified internals, it will break their implementation. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The nice thing about style checkers, linters, and static analyzers with auto-correction support, and automatic code formatters is that they do (part of) your work for you. It could access Cell objects and -- when passed slices --- could even return an iterable over the Cells. 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. These methods should definitely be private. true if symbol is a digit, false otherwise. python. The results string should not contain any parentheses. The largest integer divisible by 3 and not larger than 10 is 9. We keep doing this until we get the said number of mines. It took me a few seconds to understand that it required an upper-case F to correctly flag a tile. F-strings: Python 3.6 and later have this capability; f-strings can make reading print statements much easier. 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. true if inputString is a palindrome, false otherwise. Is a collection of years plural or singular? 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. Such important information, and such an encoding should be encapsulated in an object. Be aware of the major standard for each language, and follow the style rules in each organisation. recursive (d) /* get the value of one lower d*/ - ( (mainarray [rownumber + ~- (d/3)] || 0) Refactoring covers not only lines of code into a function, but of data objects into different structures. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? It should probably be split into two classes. I don't like that, but it's not so bad in python which is kind of designed for it. 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. ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function. A character which is either a digit or not. 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.). Beware that comments that are somewhere within the code tend to get lost. codesignal-solutions That's great post but the task was for 1 hour. This abstraction would also allow us to move some of the methods out of MineBoard. Whenever a gamer, visits a 0-valued cell, all the neighboring elements must be displayed until a non-zero-valued cell is reached. It looks like there is an added border on three sides, but no border added on the right. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? Call two arms equally strong if the heaviest weights they each are able to lift are equal. Find the minimal number of moves required to obtain a strictly increasing sequence from the input. Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. So, your class declaration should just be class MineBoard: Unused variables Therefore, Minesweeper has a provision of using flag to mark the cells, which we know contains a mine. [input] integer deposit The digits sum up to 0 + 4 + 0 + 0 = 4, which is the answer. In this article, we will be going through the steps of creating our own terminal-based Minesweeper using Python Language. Find centralized, trusted content and collaborate around the technologies you use most. An email address such as "John.Smith@example.com" is made up of a local part ("John.Smith"), an "@" symbol, then a domain part ("example.com"). Instead of looping unnecessarily over out-of-bound cells, try instead adjusting the range boundaries: This is just a spur-of-the-moment idea, but you could implement __getitem__ for the MineBoard class. Code submitted as solutions to the exercises in CodeSignal. [input] integer n A non-empty array. minesweeper codesignal The Blog. I get IndexError with this code. Pass the code through pycodestyle and correct everything it reports. In general, your solution is working (if you uncomment the line #matrix[x].insert(len(matrix)+2, "x")), but you are making mistakes in your pop() sequence. For consistency, I'd use a list of tuples for the mine locations. '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. to use Codespaces. There is a requirement to check for completion of the game, each time a move is made. It's clear that an enum for state and data is needed per tile, as well as the tile having the capability of call-backs into the board say when a mine was triggered. Using the bike's timer, calculate the current time. Could you please help me to check if my code follows good practices for a game-program ? Assuming that your hunch is correct, decode the message. mine = False. Return an array of names that will be given to the files. If nothing happens, download Xcode and try again. Rather than doing that, the set_alarm(self, hour, minute) function would spawn a thread which waits for hour/minute and then activates a call-back to the activate_alarm(self) function. This point might be a little complicated, but patterns like Observer can simplify this process. I would expect that a method called printLayout prints just the layout. How can I access environment variables in Python? Given an array of integers, find the pair of adjacent elements that has the largest product and return that product.ding the year 100, the second - from the year 101 up to and including the year 200, etc. pip3 install -r requirements.txt. Rules are super simple: We take as input a grid of where the mines are, and we output a grid where each cell represents the number of mines explicitly around it. Determine how many pieces of candy will be eaten by all the children together. Note that PEP8 mandates two lines after classes, one line after methods and functions. On subsequent games, I failed again because of this input-handling problem. 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. You signed in with another tab or window. A string consisting of English letters, punctuation marks, whitespace characters and brackets. The initial deposit as a positive integer. There should be 2 blank lines after a function or class. You could just use 2D slicing (see the corresponding stackoverflow topic) and do. It's still O(n) time with respect to array, though; it's not really possible to improve on that. Minesweeper Demo Designing Minesweeper Using Python Starting off with some arrangement of mines we want to create a Minesweeper game setup. The link to the post with the source code. Cannot retrieve contributors at this time. Return true if it is possible to remove one element from the array in order to get a strictly increasing sequence, otherwise return false. The difference between the phonemes /p/ and /b/ in Japanese, Styling contours by colour and by line thickness in QGIS. This code works fine until bomb is in the last column of the matrix, for example: These items are something you should be aware of when writing Python code. In general, if you use two different ways to write the exact same thing, the reader will think that you want to convey a message with that. But more importantly, the reason why it is hard to give it a proper name is that it appears to be doing too much. A set of constraints on these variables that must be satisfied. Check out the image below for better understanding: [input] array.integer inputArray 01-23-45-67-89-AB). Upper or lower case, it shouldn't matter. What video game is Charlie playing in Poker Face S01E07? Last night you had to study, but decided to party instead. The domain name part of an email address may only consist of letters, digits, hyphens and dots. . In the popular Minesweeper game you have a board with some mines and those cells that don't contain a mine have a number in it that indicates the total number of mines in the neighboring cells. is the smallest possible (here abs denotes the absolute value). 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". If the IDE doesn't highlight these, possibly change your IDE. Python 2 is no longer supported since 1 January 2020 (i.e. Connect and share knowledge within a single location that is structured and easy to search. He has published many popular programming courses both A limit involving the quotient of two sums. An image is stored as a rectangular matrix of non-negative integers. rev2023.3.3.43278. Given a string, output its longest prefix which contains only digits. Write and run code in 50+ languages online with Replit, a powerful IDE, compiler, & interpreter. An n-interesting polygon is obtained by taking the n - 1-interesting polygon and appending 1-interesting polygons to its rim, side by side. Suitable implementation of __getitem__ left as an exercise for the reader. Not the answer you're looking for? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Ticket numbers usually consist of an even number of digits. Does Python have a string 'contains' substring method? The cell has already been flagged or not. As we can see clearly, any number on the grid denotes the number of mines present in the neighbouring eight cells. Cannot retrieve contributors at this time. 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 . For the first example below, the output should be true. https://puzzlingclarity.com/index.php/2020/06/21/codesignal-arcade-intro-24-minesweeper/If you have questions or w. Remove the import. The bishop has no restrictions in distance for each move, but is limited to diagonal movement. However, I don't think I have used anything that is not available in Python 3.9, and the code can be trivially made to work with at least Python 3.8. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. The variables are the board squares, which each contain either a mine or a constant between 0 and 8. The minimal number of statues that need to be added to existing statues such that it contains every integer size from an interval [L, R] (for some L, R) and no other sizes. Please All you know thanks to the bike's timer is that n minutes have passed since 00:00. A string consisting of lowercase English letters. The danger is when the code changes (due to bugs or requirement changes) from what the comment says, another coder who sees the code, and sees the comment, says "The code doesn't do that, I'll be helpful and make it do that" (I've seen this happen). The idea to have one board with an integer to represent states is a nice idea. How to show that an expression of a finite type must be one of the finitely many possible values? Why not create a constant value such as MARGIN for it? Otherwise a[i] is the height of a person standing in the ith position. Enum for GameStatus but then not using the same logic with tile values? Recovering from a blunder I made while emailing a professor. true if the given representation is correct, false otherwise. In your efforts to find a clue, you've found a binary code written on the wall behind a vase, and realized that it must be an encrypted message. How can I access environment variables in Python? I wish you the best of luck with the interviewing process and hope you get the job. Run code live in your browser. Solutions to LeetCode, CodeSignal, Hackerrank and more, specifically written in modern programming languages such as Swift and Kotlin. The lifeline of this program is the recursive function - playMinesweeperUtil () This function returns a true if the user steps/clicks on a mine and hence he loses else if he step/click on a safe cell, then we get the count of mines surrounding that cell. A tag already exists with the provided branch name. RSA Algorithm: Theory and Implementation in Python. The rest of it is your good old basic minesweeper. This is not a code review site, so this question is off-topic, but your solution is not bad. 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, Python 3 simple Minesweeper game using tkinter, Time arrow with "current position" evolving with overlay number. To review, open the file in an editor that reveals hidden Unicode characters. Note that there are only two items and you can't bring more than one item of each type, i.e. Personally I don't like it when click hides other functionality, I'd put that in a calling function. sign in It mixes responsibilities of creating the string representation and printing it. mineList = [] # mine list. Additionally, you don't need to generate this list yourself, you can use random.sample: You're using this method in several places inside loops. There is absolutely no reason to use Python 2 for new code in 2021. Some whitespace would help draw attention to those steps: Actually, it would make even more sense to extract the various separate steps into separate functions. Try while game.getStatus == Playing Always try and use positive tests. 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. 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. Some rooms are free (their cost is 0), but that's probably because they are haunted, so all the bots are afraid of them. Correct variable names consist only of Latin letters, digits and underscores and they can't start with a digit. Sudoku is a number-placement puzzle. Ratiorg got statues of different sizes as a present from CodeMaster for his birthday, each statue having an non-negative integer size. [input] integer yourRight click is used as a method name. Does a summoned creature play immediately after being summoned by a ready action? The standard input involves the overall functioning of the game. A ticket number represented as a positive integer with an even number of digits. | by Leonard Yeo | The Startup | Medium 500 Apologies, but something went wrong on our end. 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. 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.