ThoughtWorks is a global IT consultancy with an exclusive focus on end- to-end global software development and delivery using advanced tools, such as:
Java / J2EE C# / .NET Ruby Agile Methodologies EAI technologies like Tibco, MQSeries & MSMQ Web Services The company's leadership in the practical application of agile methods on enterprise class projects allows its people to deliver higher quality solutions more quickly and cost effectively, while giving client business leaders greater program and project control. With about 1600 people and growing, ThoughtWorks is establishing itself as a world leader in delivering the most complex enterprise applications. Our clients represent the top tier of global industry, which are predominantly Global 1000 firms. We pride ourselves on hiring the best candidates possible. Therefore, we have a very thorough hiring process. In addition to the code review you are about to begin, we also administer logic and general aptitude assessments when you visit our office. As a general rule, we have found that those who perform well on the reviews and assessments are better suited for the significant learning required by this position. Enclosed are two programming problems. We ask that you read both descriptions thoroughly then create a program to solve **ONE** of the problems. If you choose to do both problems, we will choose and evaluate only one of your solutions. · For the solution, we would want you use either Java, Ruby or C#. · We are interested in the DESIGN ASPECT of your solution and would like to evaluate your OBJECT ORIENTED PROGRAMMING SKILLS. · You may use external libraries or tools for building or testing purposes. Specifically, you may use unit testing libraries or build tools available for your chosen language (e.g., JUnit, Ant, NUnit, NAnt, Test::Unit, Rake etc.) · Optionally, you may also include a brief explanation of your design and assumptions along with your code. · Kindly note that we are NOT expecting a web-based application or a comprehensive UI. Rather, we are expecting a simple, console based application and interested in your source code. Notes for C# developers: · For security reasons, please do NOT submit your C# code as a .msi file. · For convenience of reviewing, we request you NOT to use regions in the code. ========== INTRODUCTION TO THE PROBLEMS All problems below require some kind of input. You are free to implement any mechanism for feeding input into your solution (for example, using hard coded data within a unit test). You should provide sufficient evidence that your solution is complete by, as a minimum, indicating that it works correctly against the supplied test data. PROBLEM ONE: MARS ROVERS A squad of robotic rovers are to be landed by NASA on a plateau on Mars. This plateau, which is curiously rectangular, must be navigated by the rovers so that their on-board cameras can get a complete view of the surrounding terrain to send back to Earth. A rover's position and location is represented by a combination of x and y co-ordinates and a letter representing one of the four cardinal compass points. The plateau is divided up into a grid to simplify navigation. An example position might be 0, 0, N, which means the rover is in the bottom left corner and facing North. In order to control a rover, NASA sends a simple string of letters. The possible letters are 'L', 'R' and 'M'. 'L' and 'R' makes the rover spin 90 degrees left or right respectively, without moving from its current spot. 'M' means move forward one grid point, and maintain the same heading. Assume that the square directly North from (x, y) is (x, y+1). INPUT: The first line of input is the upper-right coordinates of the plateau, the lower-left coordinates are assumed to be 0,0. The rest of the input is information pertaining to the rovers that have been deployed. Each rover has two lines of input. The first line gives the rover's position, and the second line is a series of instructions telling the rover how to explore the plateau. The position is made up of two integers and a letter separated by spaces, corresponding to the x and y co-ordinates and the rover's orientation. Each rover will be finished sequentially, which means that the second rover won't start to move until the first one has finished moving. OUTPUT The output for each rover should be its final co-ordinates and heading. INPUT AND OUTPUT Test Input: 5 5 1 2 N LMLMLMLMM 3 3 E MMRMMRMRRM Expected Output: 1 3 N 5 1 E ========== PROBLEM TWO: SALES TAXES Basic sales tax is applicable at a rate of 10% on all goods, except books, food, and medical products that are exempt. Import duty is an additional sales tax applicable on all imported goods at a rate of 5%, with no exemptions. When I purchase items I receive a receipt which lists the name of all the items and their price (including tax), finishing with the total cost of the items, and the total amounts of sales taxes paid. The rounding rules for sales tax are that for a tax rate of n%, a shelf price of p contains (np/100 rounded up to the nearest 0.05) amount of sales tax. Write an application that prints out the receipt details for these shopping baskets... INPUT: Input 1: 1 book at 12.49 1 music CD at 14.99 1 chocolate bar at 0.85 Input 2: 1 imported box of chocolates at 10.00 1 imported bottle of perfume at 47.50 Input 3: 1 imported bottle of perfume at 27.99 1 bottle of perfume at 18.99 1 packet of headache pills at 9.75 1 box of imported chocolates at 11.25 OUTPUT Output 1: 1 book : 12.49 1 music CD: 16.49 1 chocolate bar: 0.85 Sales Taxes: 1.50 Total: 29.83 Output 2: 1 imported box of chocolates: 10.50 1 imported bottle of perfume: 54.65 Sales Taxes: 7.65 Total: 65.15 Output 3: 1 imported bottle of perfume: 32.19 1 bottle of perfume: 20.89 1 packet of headache pills: 9.75 1 imported box of chocolates: 11.85 Sales Taxes: 6.70 Total: 74.68 -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. 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