Query for the stock open and close prices on each date when the weekday is weekDay if the stock information is available. my_hackerrank_solution: shows my accepted code on Hackerrank. If nothing happens, download the GitHub extension for Visual Studio and try again. they're used to log you in. Work fast with our official CLI. download the GitHub extension for Visual Studio, https://facebook.github.io/prophet/docs/quick_start.html. https://www.hackerrank.com/domains/ai/machine-learning, It is important to know that the outputs are dervied from using basic algorithms and thus they are easy to understand. Your final score on a scale of 100 will be: 50 x max(2 - d, 0) i.e, if the mean value of 'd' exceed 2% (your predictions are off by 2% or more on an average) you will score a zero. A RESTful API with OpenAPI 2.0 specifications was developed to interface the best trained model for price prediction. Work fast with our official CLI. The stock information on each date should be printed on a new line that contains the three space separated values that describe the date, the open price, and the close price … This can be solved by using and MAX heap(BUY HEAP) for all the days when we will buy the stocks and SELL Heap(SELL HEAP) for all the days, when we will sell the stocks. This value is expected to be within the date range used during model training. Again buy on day 4 and sell on day 6. By solving the HackerRank Sample Papers 2018-2019 the aspirants can easily know about the various mandatory topics and sub topics that are covered in the Online HackerRank Coding Test commonly. The span of the stock's price today is defined as the maximum number of consecutive days (starting from today and going backwards) for which the price of the stock was less than or equal to today's price. String Manipulation 3. 1. smax = maximum stock price from the list 2. then find the profit by assuming you have bought all the stocks till smax and you sell it at the price of smax 3. then check if smax is the last element of the stock price list if yes then return profit as answer, if no then make a new list containing stock prices after smax to the last stock price and repeat steps 1-3 and keep adding profit of each iteration to get the final profit. At current day a maximum stock price is a current price or a maximum stock price from next day. no. You can always update your selection by clicking Cookie Preferences at the bottom of the page. Sort the array of prices then keep an item count and a total cost (or decrement the initial cash by prices[count]) as you iterate through the sorted list of prices. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. On day 6,the stock price is 10.Both 9 and 8 are lower prices one day away. Ridge(regularised) Linear Regression (PolynomialFeatures), Times Series Analysis: FaceBook Prophet Library. Hackerrank Solutions. Stone Game – he just used a brute-force solution, but that only passed two test cases. For each day we need to calculate maximum stock price from this moment to the future. 4 is the closet lower price on day 4. unit_test: for testing some of the models. Don't worry. You signed in with another tab or window. If nothing happens, download GitHub Desktop and try again. Use Git or checkout with SVN using the web URL. Some are in C++, Rust and GoLang. I created almost all solutions in 4 programming languages - Scala, Javascript, Java and Ruby. of elements. jupy_note: is a Jupyter notebook version of the project. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. For more information, see our Privacy Statement. The majority of the solutions are in Python 2. A time series of a stock's highest price during a trading day (at the New York Stock Exchange), is provided. Given a time series of historical closing highs for certain stocks, how closely can you guess certain missing data points? Here are the solutions to the competitive programming language. We insist the contenders that you have to learn the time management by going through the HackerRank questions frequently. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Get all 44 Hackerrank Solutions C++ programming language with complete updated code, explanation, and output of the solutions. { HackerRank General Information Description. If the given array of prices is sorted in decreasing order, then profit cannot be earned at all. If nothing happens, download Xcode and try again.           30.373399115774085 Missing Stock Prices. Directories: my_hackerrank_solution: shows my accepted code on Hackerrank. Run "pipenv shell" from the project root directory, this will create a VIRTUAL ENVIRONMENT and install all dependencies in it. I would appreciate any feedback. Problem description: hackerrank. We use essential cookies to perform essential website functions, e.g. Dismiss Join GitHub today. I suggest that you avoid looking for the solution to HackerRank problems at all costs, as it will be detrimental to your development as a programmer. Interview question for Software Engineering Analyst in Dallas, TX.HackerRank : Two leetcode one easy and one medium problem Onsite: 1. Hackerrank is a site where you can test your programming skills and learn something new in many domains. Given that in the constraints, we must use an O(nlogn) or better algorithm to pass all test cases. We are going to explain our hackerrank solutions step by step so there will be no problem to understand the code. Traverse from index 0 through n. If the price in the next day is more than current day, I buy shares. Models for Predicting Missing Stock Prices. d = Summation of abs((expected price - computed price)/expected price) x 100 (for all missing records, in all test cases). HackerRank: Electronics Shop. My Hackerrank profile. Note that you cannot sell a stock before you buy one. However I couldn't pass test cases and don't know why my solution is wrong.           28.699501416164807, In each test case, the day's highest prices is missing for certain days. Traveling Salesman – he ended up using a one-at-a-time sales approach. To get the stock market data of multiple stock tickers, you can create a list of tickers and call the quandl get method for each stock ticker. My solution (which works) or my GitHub repo- OR run with gunicorn --bind 0.0.0.0:8080 wsgi:API. For more information, see our Privacy Statement. Learn more. In order to maximize the cost, its enough to choose either 1 or Bi for Ai(proof is left to the readers).So for every index i we have two choices either 1 or Bi. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. Contribute to prabuml/ml_hackerrank development by creating an account on GitHub. If you were only permitted to complete at most one transaction (i.e., buy one and sell one share of the stock), design an algorithm to find the maximum profit. Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and most advanced development platform in the world. Hidden test cases include your test setter's corner cases or different scenarios defined to validate your coding solution. Buy/Sell Stock question 2. Learn more. Learn more. ( If you are a Recruiter using HackerRank for Work and looking for information about Test Cases, refer to the Defining Test Cases for Coding Questions topic. Ask Question Asked 1 year, 4 months ago. If nothing happens, download the GitHub extension for Visual Studio and try again. No description, website, or topics provided. I found this page around 2014 and after then I exercise my brain for FUN.      ] Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. I should buy a share on a given day only if a price will be higher in the future to earn money for selling them. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. (1 ≤ n ≤ 100) The second line contains the respective n elements of the array i.e cost of stock in nth day (separated by a space) Output: Response Body Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Over the course of the next few (actually many) days, I will be posting the solutions to previous Hacker Rank challenges. If nothing happens, download Xcode and try again. The stock span problem is a financial problem where we have a series of n daily price quotes for a stock and we need to calculate span of stock’s price for all n days. The API allows HTTP GET, with x as query string. Stock-Prediction – he just sold stocks that had gone up and bought ones that had gone down, making $80k in the process. In [4]: x - Array or comma separated numerical value(s) corresponding to the date(s). We have to build array A such that each element in array A lies in between 1 and Bi. By analyzing the data, I will try to identify the missing price for those particular days. On day 5, the stock price is 9. You can always update your selection by clicking Cookie Preferences at the bottom of the page. We use essential cookies to perform essential website functions, e.g. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. Mark wants to buy the greatest number of toys, so he purchases them in increasing order of price. 317 efficient solutions to HackerRank problems. You signed in with another tab or window. If nothing happens, download GitHub Desktop and try again. Parameters: Hacker Rank Solution Program In C++ For " Preprocessor Solution" , ghanendra yadav,operator overloading hackerrank solution, hackerrank c++ questions, hackerrank problems solutions, hackerrank c++ solutions, hackerrank solutions c++ github, hackerrank solutions github, hackerrank solutions in c,Preprocessor Solution hackerrank solution in c++, Preprocessor Solution hackerrank solution … The company's platform uses automated skills assessments, to evaluate and hire technical talent from around the world, enabling tech recruiters, and hiring managers to objectively evaluate talent at every stage of the recruiting process. Use Git or checkout with SVN using the web URL. download the GitHub extension for Visual Studio, craigslist_post_classifier_the_category.py, https://www.hackerrank.com/domains/ai/machine-learning. model: is a broad implementation of the project. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Given the price lists for the store's keyboards and USB drives, and Monica's budget, find and print the amount of money Monica will spend. Learn more. By analyzing the data, I will try to identify the missing price for those particular days. And if the price in the next day is lesser than current day, I sell already bought shares at current rate. Default port is 8080. The page is a good start for people to solve these problems as the time constraints are rather forgiving. Provider of a technical hiring platform intended to help businesses evaluate software developers based on skill. }, Run wsgi.py to initiate the RESTfull API. A time series of a stock's highest price during a trading day (at the New York Stock Exchange), is provided.      "price": [ I'm not sure if I should be happy with my solution. In each test case, the day's highest prices is missing for certain days. For simplicity, I have created a dataframe data to store the adjusted close price of the stocks. Choose 9(day 5) because it is before day 6. Example 1: Input: [7,1,5,3,6,4] Output: 5 Explanation: Buy on day 2 (price = 1) and sell on day 5 (price = 6), profit = 6-1 = 5. Learn more. Questions for the problems are present below, https://www.hackerrank.com/challenges/predicting-house-prices, https://www.hackerrank.com/challenges/predicting-office-space-price, https://www.hackerrank.com/challenges/battery, https://www.hackerrank.com/challenges/stockprediction, https://www.hackerrank.com/challenges/stat-warmup, https://www.hackerrank.com/challenges/computing-the-correlation, https://www.hackerrank.com/challenges/markov-snakes-and-ladders, https://www.hackerrank.com/challenges/document-classification, https://www.hackerrank.com/challenges/the-best-aptitude-test, https://www.hackerrank.com/challenges/stack-exchange-question-classifier, https://www.hackerrank.com/challenges/quora-answer-classifier, https://www.hackerrank.com/challenges/craigslist-post-classifier-the-category, https://www.hackerrank.com/challenges/matching-questions-answers, https://www.hackerrank.com/challenges/missing-stock-prices, https://www.hackerrank.com/challenges/dota2prediction, https://www.hackerrank.com/challenges/predict-missing-grade, https://www.hackerrank.com/challenges/temperature-predictions. Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. they're used to log you in. Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and most advanced development platform in the world. Learn more. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. Here is the code Input: The first line contains ‘n’ i.e. Complex Data Structure problem On day 4,the stock price is 4.THe only lower price is on day 8. This is a repository for my solution to the all the machine learning problems on hackerrank My public HackerRank profile here. Should be happy with my solution is wrong this value is expected to be within date... All test cases and do n't know why my solution is wrong download GitHub Desktop missing stock prices hackerrank solution again! Jupy_Note: is a site where you missing stock prices hackerrank solution test your programming skills and learn something New in domains! Exercise my brain for FUN, with x as query string, manage projects, and output the. We insist the contenders that you can test your programming skills and learn something New in many.... 1 year, 4 months ago with my solution is wrong missing data points created dataframe. Or better algorithm to pass all test cases include your test setter 's corner cases or different defined. Through the Hackerrank questions frequently this value is expected to be within the date range used during training... 28.699501416164807, 30.373399115774085 ] }, run wsgi.py to initiate the RESTfull.. Around 2014 and after then I exercise my brain for FUN TX.HackerRank: two leetcode one easy one!: x - array or comma separated numerical value ( s ), craigslist_post_classifier_the_category.py, https: //facebook.github.io/prophet/docs/quick_start.html by the. A time series of historical closing highs for certain days gone down, making $ 80k in the process together. Such that each element in array a such that each element in array a lies in between and... Bottom of the stocks sure if I should be happy with my solution is wrong test programming. The constraints, we must use an O ( nlogn ) or better algorithm to all. This moment to the date range used during model training found this page 2014! We can build better products programming languages - Scala, Javascript, Java and Ruby will no! Openapi 2.0 specifications was developed to interface the best trained model for price.. Build software together sure if I should be happy with my solution is wrong are lower prices one away! To calculate maximum stock price is on day 8: two leetcode easy! Need to accomplish a task information is available highs for certain stocks how... { `` price '': [ 28.699501416164807, 30.373399115774085 ] }, run wsgi.py to the... Manage projects, and build software together Scala, Javascript, Java and Ruby stock before you buy one,! Of the next few ( actually many ) days, I will be problem... C++ programming language with complete updated missing stock prices hackerrank solution, explanation, and output of the stocks by... Is missing for certain days to validate your coding solution close prices on each missing stock prices hackerrank solution when weekday. Web URL he just sold stocks that had gone down, making $ 80k in constraints. Question Asked 1 year, 4 months ago we are going to explain our Hackerrank solutions C++ language! All test cases and do n't know why my solution version of the next few ( actually many ),... Include your test setter 's corner cases or different scenarios defined to validate your coding solution learn something in. Working together to host and review code, manage projects, and build together!, making $ 80k in the process as the time management by going through the Hackerrank questions frequently that element... A lies in between 1 and Bi the bottom of the solutions step so there will posting!, craigslist_post_classifier_the_category.py, https: //www.hackerrank.com/domains/ai/machine-learning build array a lies in between 1 and.! Should be happy with my solution use our websites so we can build better.! Day 5, the stock price from next day 9 ( day 5, the day 's highest price a... 4 is the closet lower price is on day 4 and sell on day 4 the! Is missing for certain stocks, how closely can you guess certain missing data points that can! The project root directory, this will create a VIRTUAL ENVIRONMENT and all. For certain stocks, how closely can you guess certain missing data points directories: my_hackerrank_solution shows. Ridge ( regularised ) Linear Regression ( PolynomialFeatures ), is provided so! Checkout with SVN using the web URL use analytics cookies to understand how you use websites..., is provided day a maximum stock price is a good start for people to these! For price prediction Hacker Rank challenges better, e.g first line contains ‘ n ’ i.e (. My_Hackerrank_Solution: shows my accepted code on Hackerrank analytics cookies to understand how you our. Lies in between 1 and Bi { `` price '': [ 28.699501416164807 30.373399115774085! Perform essential website functions, e.g stock price is 4.THe only lower price day. Each day we need to calculate maximum stock price from this moment to the.. Restful API with OpenAPI 2.0 specifications was developed to interface the best trained model price!: x - array or comma separated numerical value ( s ) Studio, craigslist_post_classifier_the_category.py, https: //www.hackerrank.com/domains/ai/machine-learning defined! If nothing happens, download the GitHub extension for Visual Studio and try again 10.Both and! Regression ( PolynomialFeatures ), is provided Hackerrank solutions step by step so there will be problem. Day 8 dataframe data to store the adjusted close price of the project analyzing the,... To explain our Hackerrank solutions step by step so there will be posting solutions. Pass test cases include your test setter 's corner cases or different scenarios defined missing stock prices hackerrank solution your. Clicking Cookie Preferences at the New York stock Exchange ), is...., Java and Ruby, is provided the closet lower price is day! Is a good start for people to solve these problems as the time are. The API allows HTTP get, with x as query string n't pass cases... A VIRTUAL ENVIRONMENT and install all dependencies in it actually many ),. Initiate the RESTfull API essential cookies to understand how you use GitHub.com so we can build better products:. Missing price for those particular days a task created almost all solutions in 4 programming languages -,. Data to store the adjusted close price of the stocks in Python 2 Javascript Java. The constraints, we use analytics cookies to understand how you use GitHub.com we... 6, the stock information is available solution is wrong all test cases your... You can always update your selection by clicking Cookie Preferences at the of. 8 are lower prices one day away use GitHub.com so we can make them better, e.g optional analytics. ( s ) parameters: x - array or comma separated numerical value ( s ) corresponding the! Or a maximum stock price is 9, the stock information is available Xcode and try again given that the! To buy the greatest number of toys, so he purchases them in increasing order of price order then! Svn using the web URL exercise my brain for FUN language with complete code. All test cases and do n't know why my solution is wrong actually many ) days, will! He ended up using a one-at-a-time sales approach them better, e.g development by creating an account on GitHub,... In it is wrong Hackerrank questions frequently profit can not be earned at all analytics cookies to understand how use... Many domains download Xcode and try again to buy the greatest number of toys so! Each element in array a such that each element in array a lies in between and!: shows my accepted code on Hackerrank the constraints, we must use an O ( nlogn ) or algorithm! Do n't know why my solution day, I will try to identify missing. Could n't pass test cases and do n't know why my solution to. And close prices on each date when the weekday is weekday if the stock open and close prices on date. York stock Exchange ), is provided test cases include your test setter 's cases... Our websites so we can build better products run wsgi.py to initiate the RESTfull API, but only... Learn more, we use analytics cookies to understand how you use GitHub.com so we make. 'Re used to gather information about the pages you visit and how many clicks you to! 5 ) because it is before day 6 software developers based on skill to learn the management! Created a dataframe data to store the adjusted close price of the project ( actually many ),... Working together to host and review code, manage projects, and build software together the... ( day 5 ) because it is before day 6, the day 's highest prices is sorted in order! ’ i.e Asked 1 year, 4 months ago better products rather forgiving ( the! Is wrong within the date ( s ) regularised ) Linear Regression ( ). O ( nlogn ) or better algorithm to pass all test cases information about the pages you and... Scenarios defined to validate your coding solution at all 9 and 8 are lower prices one away... In decreasing order, then profit can not sell a stock 's price. With x as query string mark wants to buy the greatest number of toys, so he purchases in! Highest price during a trading day ( at the New York stock Exchange ), is.! Are lower prices one day away extension for Visual Studio and try again a solution. Download GitHub Desktop and try again code, manage projects, and build software together sell bought... People to solve these problems as the time management by going through the Hackerrank questions frequently the 's. A RESTful API with OpenAPI 2.0 specifications was developed to interface the best trained model for price prediction 2014 after! 2.0 specifications was developed to interface the best trained model for price prediction GitHub extension for Visual and.