Here is a problem that I considered solved for some months: The Adjacent Coins Problem. Question 1 Codility test questions and answers javascript. Rotation of the array means that each element is shifted right by one index, and the last element of the. The problem is as follows: A dominant member in the array is one that occupies over half the positions in the array, for example: {3, 67, 23, 67, 67}. By swap operation we mean picking one element from array A and one element from array B and exchanging them. String is a sequence of characters that is treated as a single data item and terminated by null character '\0'. Right before the holidays, I said that you had better learn how to solve programming problems. HackerRank for Work is the leading end-to-end technical recruiting platform for hiring developers. Tests will be created in the bin directory located wherever you ran cmake from (test\build\bin in the example above). Query will be O(1) time complexity regardless of the implementation or correctness since you are accessing an indexed array. Response Time Tests The difference between a response time test and a throughput test (assuming the latter is client-server based) is that client threads in a response time test sleep for some period of time between operations. Latest job for manager nlp machine learning in genpact india company. Max Codility - Lesson 9 Maximum Slice Problem - 2. Write a function: class Solution { public int solution(int[] A); } that, given a non-empty zero-indexed array A consisting of N integers, returns the maximum number of blocks into which A can be divided. Codility is one of the most common services used to apply test codes (for job applications, for example). Dziś wrzucam kolejne rozwiązanie zadanka z codility. Time bound is O(N * log(N + X + Y)), where N is the number of cuts, X and Y are largest size of the cake. August 2015; July 2012; March 2012; April. An hour was given for the second test, and all the time was required. Hi, i want some help in this problem : Task description A non-empty zero-indexed array A consisting of N integers is given. My final consideration for this problem is take present the use of auxiliary data structures. Codility is where programmers receive programming tests as interview questions. A six-sided die is a small cube with a different number of pips on each face (side), ranging from 1 to 6. Codility - Lesson 10 Prime and composite numbers; Codility - Lesson 9 Maximum Slice Problem - 3. Codility Demo Test Solution. A non-empty zero-indexed array A consisting of N integers is given. The longest edge of a cake piece is 10000. is not a permutation, because value 2 is missing. Sets are containers that store unique elements following a specific order. The problem description is copyrighted, so have a look at the link for the description. You start with couple of ARE YOU SURE YOU WANT TO CONTINUE messages, then there's the timer, would be better if it would increase in size as the last 300 secs goes by. First of all, here is the problem description: [quote] A non-empty zero-indexed array A consisting of N integers is given. Here you can find a hundreds programming problems carefully categorized and sorted by levels starting from easy, intermediate to the really pro level problems. Image” in C# WPF; How to rename multiple Folders/Files at a time in WPF-C#; Archives. that, given a zero-indexed array A consisting of N integers, returns any of its equilibrium indices. scikit-learn comes with a few methods to help us score our categorical models. Test cases. This test took me a while, even though it is marked as 'easy'. You can declare the array by using the Dim statement. The method is declared to return a char. My solution for the following Codility test: N-1]; each element of array A is an integer within the range [1. c# - Codility test - find multiples in range - Stack Overflow. The goal is to check whether there is a swap operation which can be performed on these arrays in such a way that the sum of elements in array A equals the sum of elements in array B after the swap. I leave that to you. For example, given the arrays shown above, the function should return 2, as explained above. The basic building blocks of unit testing are test cases — single scenarios that must be set up and checked for correctness. Codility does post some official solutions, but not for all. I just never took it. My code examples are all in JavaScript so you can test it right in your browser. Reverse Singly Linked List. We'll use the convention of considering only the part of the array that begins at the given index. Go to the editor Test Data : Input the string : Welcome, w3resource. So -3 is the minimum. There is no bug and it's basically identical to yours. Minimum requirements: a) you can still code b) have access to ide for running the code. net mvc Auto Responder Binary Gap C# C# Concepts C# For Loop exception Codility Codility Cyclic Rotation Solution C# Codility FrogJmp Solution Codility OddOccurrencesInArray Solution C#. In this way, a recursive call can pass index+1 to move down the array. I applied for a job and was asked to do a Codility test. I've mentioned this before elsewhere, but expect them to test. Test results - Codility. com questions 1. Calculate the maximum possible distance j-i where j and i are indices of adjacent element in given array. They gave me three hours to finish the exam. Find an index of an array such that its value occurs at more than half of indices in the array. Hi, i want some help in this problem : Task description A non-empty zero-indexed array A consisting of N integers is given. Find index of array javascript. Assume that each element of the array is a non-negative integer not exceeding 5,000,000. manual design of test cases often leads to highly incom-plete coverage. A non-empty zero-indexed array A consisting of N integers is given. Re: Sort an integer array in non-decreasing order with single swap Nov 13, 2015 10:44 AM | brainz | LINK thanks , it was a short assignment that i received from Codility and after submitting I got 0% in correctness and task Score as 0% that landed me with a really bad score and I am embarrassed with the fact on what i wrote was wrong ?. C# solution for Codility Equi problem // through the array sequentially until the sums of the sub-arrays are equal. First, they devise a set of test cases of varying sizes. Given an array S of n integers, find three integers in S such that the sum is closest to a given num Codility NumberSolitaire Solution 1. Here's how you can make a case for a new tool and how to select the platform best suited for your team:. Take the following array: [1, 3, 6, 4, 1, 2]. Cracking the HackerRank Test: 100% score made easy What I am able to observe recently is that HackerRank/Codility is just another stage of the process, usually a. I'm about to take a codility test and I'm somehow nervous. Array A contains only 0s and/or 1s: 0 represents a car traveling east, 1 represents a car traveling west. Write a program to find top two maximum numbers in a array. Only you have to call the InvokeDllMethod of the DllLoader class with these parameters: first is the absolute path of the DLL you want to load, second is the name of the method you want to call and the third is the input parameters in an object array for the method of the DLL. Test C programming skills online on TechGig. 5% Medium 234 Palindrome Linked List 28. You start with couple of ARE YOU SURE YOU WANT TO CONTINUE messages, then there's the timer, would be better if it would increase in size as the last 300 secs goes by. 12s to run and on the second 2. Thus ended any chance of ever working at Airware. My company uses these tests to hire people, but at least we phone screen them first. Is there any way to test the individual drives in a RAID 1 array? I am using Intel Matrix Storage Manager with Windows XP SP2 on an Asus P5Q Deluxe motherboard. 1Rotate Array in Java You may have been using Java for a while. Did get to learn a few things from that review. that given a non-empty zero-indexed array A consisting of N non-negative integers returns its amplitude. pl/public/edex/x0y. One millesecond later we realize that is probably not the best solution, specially because if the input K is greater than the length of the input array you will end it up calculating unnecessary shifts. These consisted of much more difficult coding problems. It was easy to use, and Codility itself offers a practice problem to help you get acclimated to their method of doing things. Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies. The present sample is the Equi Task, and the propose is very simple. We tag each event with +1 (for the beginning of a disk), or -1 (for its end). Got a rejection after 2 weeks with a very good review of the solutions I had submitted. These were a psychological test and a Java Codility test that consisted of three tasks. 【Codility】Decimal ZIP problem The decimal zip of two non-negative integers A and B is an integer C whose decimal representation is created from the decimal representations. This problem is proposed as example in the Codility Prefix Sum section. Caller with IsObject and then test Application. Right before the holidays, I said that you had better learn how to solve programming problems. Codility August 7 at 1:05 PM · Excited for Olga Żółkiewicz, blogger at How2hr, to discuss how to measure candidate experience on a budget during our WAW meetup tomorrow @ 6pm!. If array has 10 items, it will still take 1 second to finish with all of them. com click here to see test results). Best of luck. So the solution to the demo problem: - A zero-indexed array A consisting of N integers is given. Dziś wrzucam kolejne rozwiązanie zadanka z codility. Assumed it would be equivalent to programming tests in the past, but it was drastically harder, with a much clunkier interface. " ~ Codility. (Perm-Missing-Elem codility test) I have started playing with codility and came across this problem: A zero-indexed array A consisting of N different integers is given. is not a permutation, because value 2 is missing. Interview candidates say the interview experience difficulty for Codility is average. My other motivation was Codility’s material on the subject and how confusing it is. The second solution sorts the array with O(nlogn). We deliberately keep Codility tasks at fundamental level. I got 100% for it but I got a time. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created function(1. On the contrary, when getFullname() is assigned to the test variable, the context refers to the global object (window). Write a function: int isAnagramOfPalindrome(const string &S); that, given a non-empty string S consisting of N characters, returns 1 if S is an anagram of some palindrome and returns 0 otherwise. Should I store x,y coordinates as an array, a class object, or two variables? Count the frequency of integers in an array How does the Saturn V Dynamic Test. , bn−1 respectively (0 < ai, bi < m). To remedy this situation, I've created a Hammerspoon script to kill Firefox when the system goes to sleep, and start it upon waking. We would like especially to acknowledge Grzegorz Olender from Nokia Solutions and Networks (NSN) and Cyprian Wronka from Cadence for their substantial contributions and support. all of them with array in heavy calculation part, to. Check out CamelPhat on Beatport. The problem is to find the maximum sum of a sub-array of a given integer array. FrogRiverOne Find the earliest time when a frog can jump to the other side of a river. A non-empty zero-indexed array A consisting of N integers is given. 7% Easy 236 Lowest Common Ancestor of a Binary Tree 28. Apr 8, 2015. Solution to Codility Lesson 11: Ladder given two non-empty zero-indexed arrays A and B of L by removing 2^ Ymax from the function and it failed in codility. For example, given the arrays shown above, the function should return 2, as explained above. Check out CamelPhat on Beatport. Starting rules combine the rules above and JohnFletcher 's rules (a "fizz" for a multiple of three or one "fizz" per '3' digit). It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. The array contains an odd number of elements, and each element of the array can be paired with another element that has the same value, except for one element that is left unpaired. and we have to visit every element of the count array, giving us a time complexity of O(N). The real test is not getting the parlour answer right, the real test is holding your own in a discussion about the above topics (again merely getting the answer right to the above questions is also not good enough, it’s the discussion that matters). for a 32-bit system an int as a 32 bit wide bit pattern. sometimes I really wish to contact any of them to see how brilliant they are. It is available for free, and you can try it unlimited times. This is an analysis of Codility - Silicium 2014 Challenge. Since 2009, Codility has run over 2 million tests, which provides a significant dataset with which to compare new test takers. Net, Check whether array A is a permutation Codility C#, Codility Lessions C#. that, given a zero-indexed array A consisting of N integers, returns any of its equilibrium indices. Testers thought that test automation is the silver bullet for their careers and went ahead with the "learning phase". [Note: A saddle point is an element of the matrix such that it is the minimum element for the row to which it belongs and the maximum element for the column to which it belongs. My solution for the following Codility test: N-1]; each element of array A is an integer within the range [1. The problem is, finding the k-th largest piece of cake after cutting a big cake with straight cuts. , an−1 and b0, b1,. The 1st codility test was 15 minutes for 2 problems & a total failure. Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: requirements are turned into very specific test cases, based on which the software is improved only in order to pass the new tests. Codility and the "K complementary pairs in array" challenge by Francesco Rigoni | Posted on March 29, 2015 October 13, 2018 Recently I had to confront myself with Codility, for those who don't know it Codility is an online tool that provides coding challenges and it is often used by companies in the process of hiring new people when they. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created function(1. The maximum number of blocks that array A can be divided into is three. General Table Driven Tests. 99s limit seems to remain the same. PermCheck Codility Solution in C#. Java : Codility Test Question 1 Write a. Interview candidates at Codility rate the interview process an overall positive experience. Codility test followed by 3 technical interviews and final hiring manager interview. Now, the 90 minute timed test at Codility asked me to solve three problems: the point in which in an array, the count of X from the left != count of X from the right. After an initial HR phone call I got asked to take a Codility online test. More elaborate rules are added as the game progresses: squares, primes, etc. While I do not believe that such tests correlate to typical real-world programming tasks, they are often used as a first interview filter by some companies. String and Character Array. 8% Medium 238 Product of Array Except Self 42. com website you can test your programming skills. , ‘_’ at the position where two chars at the same index in both strings don’t match. I got a 10 on the second task but an overall score of 48. Była ostra jazda. Rotation of the array means that each element is shifted right by one index, and the last element of the array is also moved to the first place. valueOf(char[],int,int) , and the characters of that string were then. Join GitHub today. Codility tests judges the code on Correctness and Performance, which is different from what other similar coding platforms do like leetcode or hackerrank. ALCAN Systems, a smart-antenna start-up from Darmstadt, Germany announces today the successful test of a Ku Band liquid crystal (LC) phased array antenna. The problem is to find the minimum sum of two sub-arrays. The first lesson on Codility discusses Iterations and the first exercise, classified as "painless" (really), is a question to find the longest Binary Gap in a positive integer. Write a class Employee, which represents an employee in a company. So -3 is the minimum. Assumed it would be equivalent to programming tests in the past, but it was drastically harder, with a much clunkier interface. Codility tests judges the code on Correctness and Performance, which is different from what other similar coding platforms do like leetcode or hackerrank. Correctness refers to how many edge cases does your code passes. The goal is to check whether array A is a permutation. So the solution to the demo problem: - A zero-indexed array A consisting of N integers is given. But after a quick look at their website the curiosity became disdain. Given a positive integer N, find and return the longest distance between two consecutive 1's in the binary representation of N. This piece of code will be used on a list of items for processing; something like an array waiting to be searched or sorted. How to get difference of top 2 records of each group in SQL Server order by date I went though today Codility online exam for one of the top investment banking client interview, and I found one interesting question on SQL as below,. Codility August 7 at 1:05 PM · Excited for Olga Żółkiewicz, blogger at How2hr, to discuss how to measure candidate experience on a budget during our WAW meetup tomorrow @ 6pm!. Let’s iterate it. Enjoy and share your comments! 1) Time. This is an analysis of Codility - Silicium 2014 Challenge. B] that are divisible by K. 题目: A game for one player is played on a board consisting of N consecutive squares, numbered from. Become a strong tech candidate online using Codility!. a) Update sum to get the right sum. Third party asks some great practical questions involving skeleton code and implementing some feature. A zero-indexed array A consisting of N different integers is given. Max Codility - Lesson 9 Maximum Slice Problem - 2. 2 Arrays CyclicRotation. This piece of code will be used on a list of items for processing; something like an array waiting to be searched or sorted. This article describes three approaches for parsing the sentences from a body of text. Before taking this tests, I would advise every programmer to study using the lessons they've provided. Array T describes a network of cities as follows: if T[P] = Q and P ≠ Q, then there is a direct road between cities P and Q. The problem is as follows: A dominant member in the array is one that occupies over half the positions in the array, for example: {3, 67, 23, 67, 67}. Codility tests are timed competitive programming questions used for developer/software engineer recruitment. The first was a set of Codility coding tests focused around array manipulation, and the second was a set of probability and logic based maths questions on their own site. Characters of the char array str, starting at index offset, are appended, in order, to the contents of this sequence. Now I realise I need to brush up on some basics. Codility and the “K complementary pairs in array” challenge by Francesco Rigoni | Posted on March 29, 2015 October 13, 2018 Recently I had to confront myself with Codility, for those who don’t know it Codility is an online tool that provides coding challenges and it is often used by companies in the process of hiring new people when they. Insert a non alphanumeric char e. arrays A and B of n integers, a0, a1,. Java : Codility Test Question 1 Write a. Write an efficient C program to find the sum of contiguous subarray within a one-dimensional array of numbers which has the largest. Next comes the controller class that does the actual parsing with Gson. They offer "lessons" which I've started going through, but they don't make for very good. We conducted a skilltest to test our community on SQL and it gave. By swap operation we mean picking one element from array A and one element from array B and exchanging them. This kind of method is an addition to normal C# method calls. Codility is a platform for testing the skillsets of coders. For example, implement a function that when given a 2D array of 1's and 0's returns the width, height, and starting points of a rectangle (being represented by 1's). , bn−1 respectively (0 < ai, bi < m). In a set, the value of an element also identifies it (the value is itself the key, of type T), and each value must be unique. Time bound is O(N * log(N + X + Y)), where N is the number of cuts, X and Y are largest size of the cake. Codility NumberSolitaire Solution. com problem sets. You can now check your Ruby solution at The Book of Problems. 6% Medium 252 Meeting Rooms 41. Some recently asked Codility interview questions were, "SQL Queries, Math questions, DS, Algorithms" and "Reverse a linked list using only O(1) memory space. 2017-08-31 Check your solution. Now I realise I need to brush up on some basics. Here's how you can make a case for a new tool and how to select the platform best suited for your team:. Thus ended any chance of ever working at Airware. Find index of array javascript. First, they devise a set of test cases of varying sizes. as the values are 1. Coffee With Codes 59,391 views. Minimum requirements: a) you can still code b) have access to ide for running the code. I have asked dozens of people to spot the bug, but alas, none was found. TopTal's primary screening process is to use Codility to see how good your skills are. Check whether array A is a permutation. The second solution sorts the array with O(nlogn). n+1 then return 0 if the first element of the sorted array does not contain 0 otherwise return rhs value if comparison of each subsequent two elements (rhs-lhs = 1) is false (can be. Complexity: expected worst-case time complexity is O(N); expected worst-case space complexity is O(N), beyond input storage (not counting the storage required for input arguments). Arrays A and B represent N voracious fish in a river,. 99s limit seems to remain the same. simple sql with "having" restriction 3. Search: Search Leetcode problems and solutions pdf python. Tests will be created in the bin directory located wherever you ran cmake from (test\build\bin in the example above). Let's iterate it. Published on Feb 14, 2016, edited on Aug 31, 2017 • Ruslan Ledesma-Garza. If you are now adding a second ‘_’, then return false. The problem is, finding the k-th largest piece of cake after cutting a big cake with straight cuts. Sort an array without changing position of negative numbers; Create linked list from a given array; Maximum element in a sorted and rotated array; Given two arrays count all pairs whose sum is an odd number; Find maximum xor of k elements in an array; Partition an array of non-negative integers into two subsets such that average of both the. This question appears to be off-topic. Prepare for tech interviews and develop your coding skills with our hands-on programming lessons. Prefix sums have also been much studied in parallel algorithms, both as a test problem to be solved and as a useful primitive to be used as a subroutine in other parallel algorithms. You have no items in your shopping cart. We will write two different C# palindrome functions: a simple one that is very easy to understand and a slightly less readable function that will be faster and more efficient. Notice: Undefined index: HTTP_REFERER in /var/sentora/hostdata/zadmin/public_html/e-imza_emomerkez_net/s739tp/9wc. Compare features, ratings, user reviews, pricing, and more from Codility competitors and alternatives in order to make an informed decision for your business. He has visited a lot of cities over many years. The two drives are Western Digital 640 Gb SATA drives, but WD's test utility doesn't work on drives in a RAID array. My company uses these tests to hire people, but at least we phone screen them first. There is a P value (0 <= P <= N) who solve the problem below?. Find index of array javascript. An equilibrium index of this array is any integer P such that 0 ≤ P < N and the sum of elements of lower indices is equal to the sum of elements of higher indices, i. Right before the holidays, I said that you had better learn how to solve programming problems. Codility provides 1-3 visible test cases (against which you can test as often as you want), allows you to use your own test cases (HIGHLY recommended and a very strong positive signal if we see this used well), and around 10 categories of hidden test cases with various inputs. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created function(1. that, given a zero-indexed array A consisting of N integers, returns any of its equilibrium indices. com) 24 points by pseudolus 28. We are delighted that a number of our clients were willing to beta-test our bug-fixing tasks and help us perfect them. The function should return −1 if no equilibrium index exists. That's how most TDD. They can be found here. How to Square a Number in Java. Still do not like the tests. This article describes the formula syntax and usage of the Z. given some bit encoding scheme, convert N to -N with the least number of bits. Check whether array A is a permutation. Find an index of an array such that its value occurs at more than half of indices in the array. After three tries I got my shiny gold medal. The concept. In Excel VBA, you can refer to a specific variable (element) of an array by using the array name and the index number. A zero-indexed array A consisting of N integers is given. The frog is currently located at position 0, and wants to get to position X. Re: Sort an integer array in non-decreasing order with single swap Nov 13, 2015 10:44 AM | brainz | LINK thanks , it was a short assignment that i received from Codility and after submitting I got 0% in correctness and task Score as 0% that landed me with a really bad score and I am embarrassed with the fact on what i wrote was wrong ?. (codility. That is the definition of a Palindrome. Codility is built to be a platform companies can use to get the best programmers. Mar 21, 2015. this question is most common ask or giving for coding or machine test. Codility seems to only care about edge cases. Join GitHub today. 방금 local stage 에서 commit 을 했는데 취소하고 싶다면 reset 을 하면 된다. Find an index of an array such that its value occurs at more than half of indices in the array. More precisely, A[K] is the start and B[K] the end of the K−th plank. Write an efficient C program to find the sum of contiguous subarray within a one-dimensional array of numbers which has the largest. that given a non-empty zero-indexed array A consisting of N non-negative integers returns its amplitude. Codility ‘Triangle. Try it risk-free Try it risk-free for 30 days. My final consideration for this problem is take present the use of auxiliary data structures. Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: requirements are turned into very specific test cases, based on which the software is improved only in order to pass the new tests. The large_random2 test uses random numbers, and also the server may be overloaded with many others tests, so it's normal to change a little bit the execution time, although the 0. Solving FizzBuzz in Java 8 Here is the complete solution of classic FizzBuzz problem using new features of Java 8. Got a reply within a 2 weeks with a codility test. Third party asks some great practical questions involving skeleton code and implementing some feature. Assume that the length of the array does not exceed 1,000,000. Codility Also has a Run mode and debug features, as do all the others I will mention. Slide05 Arrays - Download as Powerpoint Presentation (. These individuals benefit a lot from having a wide array of tools at their disposal, from proper training to adequate documentation. I've mentioned this before elsewhere, but expect them to test. Tests will be created in the bin directory located wherever you ran cmake from (test\build\bin in the example above). Also because i din't read it throughly and missed the detail that while comparing two fishes, the first fish needs to have direction 1 and the second direction 0, and not 0-1. We would like especially to acknowledge Grzegorz Olender from Nokia Solutions and Networks (NSN) and Cyprian Wronka from Cadence for their substantial contributions and support. Step5: Test your RVM If installation was successful, RVM should now load whenever you open a new shell. So I've been going through the tests on codility and got bit stuck A non-empty zero-indexed array A consisting of N integers is. given some bit encoding scheme, convert N to -N with the least number of bits. Go to the editor Test Data : Input the string : Welcome, w3resource. given an array with elements check if just by exchanging two elements of the array we get a sorted array. For simplicity, we require prefixes and suffixes to be non-empty and shorter than the whole string S. Mar 21, 2015. Even thought, codility is the best online judge system with free training, I’ve ever used. Something with binary trees, can't remember. valueOf(char[],int,int) , and the characters of that string were then. This is an analysis of Codility - Silicium 2014 Challenge. The first number is 1. 1 Pierwszy raz miałem sytuację (nie wiedziałem, że Codility to umożliwia) miałem zadania oprócz C#/C++/Java na FrontEnd (pisane w JQuery) oraz zapytania w SQL. The first is accuracy_score, which provides a simple accuracy score of our model. Net Codility TapeEquilibrium Solution C# Common table expression CSS Delegates in C#. Then we return res in the end. You are given two non-empty zero-indexed arrays A and B consisting of N integers. Find an index of an array such that its value occurs at more than half of indices in the array. You have declared the method to return a char, but you return a char array. Apart from the length operation: len([1, 2, 3]) == 3. One millesecond later we realize that is probably not the best solution, specially because if the input K is greater than the length of the input array you will end it up calculating unnecessary shifts. The employee has a employeeNumber (9 digit number), firstName, lastName and emailId as member variables. Question 1 Codility test questions and answers javascript. First, they devise a set of test cases of varying sizes. What it lacked was the notion of a context - every z-index value was defined in a 1-dimensional array, which doesn't work in scenarios such as the one above. I think that you are doing a great contribution to the community, I want to contribute also,. Interview candidates say the interview experience difficulty for Codility is average. First, we sort the array in ascending order. The array contains an odd number of elements, and each elem [코딜리티] codility lesson4 Counting Elements - PermCheck 100%. Apart from providing a platform for programming competitions, CodeChef also has various algorithm tutorials and forum discussions to help those who are new to the world of computer programming. Assume that the length of the array does not exceed 1,000,000.