You switched accounts on another tab or window. Leave a Comment / HackerRank, HackerRank Python / By CodeBros Hello coders, today we are going to solve Exceptions in Python Hacker Rank Solution . Unexpected Demand - Problem Solving (Basic) certification | HackerRank - FoxStack FoxStack Home hackerrank hackerrank certification Unexpected Demand - Problem. com. Here's my solution: import java. c. " If found helpful please press a ⭐. Skip to. Hackerrank-Problem-PHP-Solution. Unrolling the loop would yield: a = 5; /* initial value of a */ /* now run a=a+a; three times */ a = 5 + 5 = 10; a = 10 + 10 = 20; a = 20 + 20 = 40; Code your solution in our custom editor or code in your own environment and upload your solution as a file. for letter in ransomNote: letter_map [letter] = letter_map. * [aeiouAEIOU]$'; This only works if we assume that all of the city names are at least two characters long. Added solution to 'The Grid Search' problem. Angular: Weather Component/Details1. tells us the numbers will all be within the range for standard integers, no need to use long or BigInteger. #2. For every pair such that ( i < j ), check whether the rectangles are similar or not by checking if the condition A [i] [0] / A [i] [1] = A [j] [0] / A [j] [1] is satisfied or not. This repository includes solutions for 1. This is the java solution for the Hackerrank problem - Fraudulent Activity Notifications - Hackerrank Challenge - Java Solution. To associate your repository with the geeksforgeeks-solutions topic, visit your repo's landing page and select "manage topics. Please give the repo a star if you found the content useful. import java. . Approach: Follow the steps to solve the problem. There is a path between any two cities. diagonal difference hackerrank solution in java 8 using list. Query the NAME field for all American cities in the CITY table with populations larger than 120000. You can discover which skills. We would like to show you a description here but the site won’t allow us. The reduce () function applies a function of two arguments cumulatively on a list of objects in succession from left to right to reduce it to one value. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"2D Array. Veiw Profile. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"2nd UGV South Zone Programming Contest(SZPC)-2023(UNDERGRADUATE-Preliminary)","path":"2nd. Problem Solving. This is the Java solution for the Hackerrank problem – Ice Cream Parlor – Hackerrank Challenge – Java Solution. Source - Ryan Fehr's repository. Road Repairing Hackerrank Solution. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. So please include more details about the problem, and some explanation about the code. Active Traders 2. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/maximum-cost-of-laptop-count":{"items":[{"name":"test-cases","path. 2 years ago. We would like to show you a description here but the site won’t allow us. The solution is provided by a community member and others, and the problem is solved with different languages and techniques. Minimum Absolute Difference in an Array [Easy] Solution. "Try the problem yourself first, then only proceed to the solution. Stars. YASH PAL February 27, 2021. SQL HackerRank Challenge Solutions Description. Are you sure you want to create this branch? Cancel Create 1 branch 0 tags. INTEGER_ARRAY order","# 2. In this HackerRank Java Exception Handling problem in java programming, You are required to compute the power of a number by implementing a calculator. As this is a very lovely site, many people want to access those awesomely cute pics of the kittens. Reload to refresh your session. Posted inHere are some steps you can follow to solve HackerRank problems in C: Read the problem statement: Before you start writing code, make sure you understand the problem and what you need to do to. Thanks if u r Watching us. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. Dam-Design-Hackerrank: This is a medium level question from Hackerrank. Activate Developer Dashboard on Demand. ·. Source - Ryan Fehr's repository. . 2. This is the c# solution for the Hackerrank problem – Plus Minus – Hackerrank Challenge – C# Solution. c_lib: integer, the cost to build a library. This hackerrank problem is a part of Pro. On this page, we have compiled a list of preparation checklists, a short walkthrough video, and some commonly asked questions with their answers to give you a smooth test-taking experience. MySQL Solution. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"README. Follow. hackerrank between two sets solution in python. 1 min read. The Data Structures Domain is further Divided into the following sub. Are you sure you want to create this branch? Cancel Create 8 branches 0 tags. yuvipanda / Hint. Feel free to use my solutions as inspiration, but please don't literally copy the code. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. The HackerRank coding environment supports about 35 different programming languages, and for each language, there is a definite memory limit and a specific time limit for code execution. Editorial. You are given two values a and b. unexpected demand hackerrank solution. Growing in popularity at a rate of 155%, Java is likely to retain its number one position for the foreseeable future. The roads in Byteland were built long ago, and now they are in need of repair. Solution. sort() print numbers[len(numbers)/2]. Feel free to use my solutions as inspiration, but please don't literally copy the code. append(int(num)) numbers. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/road-repair":{"items":[{"name":"test-cases","path":"certificates/problem. 1 Let the mininum and maximum score record be gameMin and gameMax. Problem. Figure 2: Programming Languages ranked by sum of. For numbers which are multiples of both 3 and 5, print "FizzBuzz" instead of the number. Deepak Rana. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. We will send you an email when your results are ready. Start hiring at the pace of innovation!Hackerrank Coding Questions for Practice. 1. Take the HackerRank Certification Test and showcase. util. I used the code stubs provided by HackerRank, so don't mind the unnecessary imports, naming convention and so on. The regexVar function returns a regular expression object that matches any string starting with a vowel, followed by one or more characters, and ending with the same vowel. Posted in Category: On-demand Event On-demand Divakar Gupta, Director of Global Product Management at Expedia, explains how they manage their travel tech product and what the industry needs to do to re-establish trust in travelQuery a list of CITY and STATE from the STATION table. Road Repairing Hackerrank Solution. - hackerrank-solutions/stub. util. Get code examples like"GET request in hackerrank". . 1. - GitHub - kumod007/All. You switched accounts on another tab or window. Problem Solving (Basic) certification | HackerRank. YASH PAL January 20, 2021. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/balanced-system-files-partition":{"items":[{"name":"test-cases","path. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"HackerRank Problems","path":"HackerRank Problems","contentType":"directory"},{"name":"2D. The final print statement prints the final state of the list after all the operations are performed. HackerRank Problem Solution in PHP. 3 years ago. Solve Challenge. Shanghai City, China. #Python #Dev19 #HackerankSolutions #C #C++ #Java #PythonPlease Subscribe Us. Then the loop will run three times. Submissions. BE FAITHFUL TO YOUR WORK. We would like to show you a description here but the site won’t allow us. Hackerrank React Test - Sorting Articles, Slideshow App, Catalog Viewer Topics react app sorting slideshow slide catalog article view reactjs test solution viewer hackerrank show certification hackerrank-solutions hackerrank-test hackerrank-challenge hackerrank-certification hackerrank-reactjsWe would like to show you a description here but the site won’t allow us. May 27, 2020. Since the number of input elements is fixed at 5 so the same solution can be implemented using few if-else statements also. 1 min read. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. ) to finish all the 58 SQL challenges on the site, and I gained quite some insights from. You've arranged the problems in increasing difficulty order, and the i th problem has estimated difficulty level i. Inner and Outer – Hacker Rank Solution. replace(find, replace); } let index = s. must not be primes, so we mark them off as well. cc at master · kilian-hu/hackerrank-solutions⭐️ Content Description ⭐️In this video, I have explained on how to solve password cracker using recursion in python. All the solutions provided here, are solely developed by me (Somdip Dey), and the challenges were pursued while learning Scala on the way. Solutions to Hackerrank practise questions which I have solved on my Hackerrank profile for the given topics : C++ (CPP) C Language; Java; Python; Problem Solving; Solutions are given in their respective folders as given in the repository. This repository contains solutions to the Data Structures domain part of HackerRank. String regex = "^ [a-zA-Z] [w] {7,29}"; // Compile the regular expression pattern. Polynomials – Hacker Rank Solution. Reload to refresh your session. Caesar Cipher HackerRank Solution in C, C++, Java, Python. Hence we got our solution. If total number of games is greater than 1 then a processing is reequired as below: 3. Learn more about bidirectional Unicode characters. We would like to show you a description here but the site won’t allow us. - hackerrank-solutions/README. 2597. Hackerrank Problem Solving(Basics) Solutions | Hackerrank Free Courses With Certificate | Hackerrank#Hackerrank#LetsCodeAbout this video:In this Video you wi. Disclaimer: The above Python Problems are generated by Hacker Rank but the Solutions are Provided by CodingBroz. . On each day, you will choose a subset of the problems and solve them. That’s over 25% of the world’s developers who are using HackerRank. You signed in with another tab or window. Time Complexity: O (n) there is one for loop. In this HackerRank Repair Roads problem solution Two roads are adjacent if they have the same city at one of their endpoints. java","path":"Algorithms/Implementation. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/nearly-similar-rectangles":{"items":[{"name":"test-cases","path":"certificates. txt","contentType":"file"},{"name":"A Very Big Sum. php This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Use HackerRank’s library of challenges built by a team of content experts, or take advantage of the supported frameworks to create custom challenges and assess for front-end, back-end, full-stack, and data science, and DevOps roles. If found to be true, increment the count. Harold is a kidnapper who wrote a ransom note, but now he is worried it will be traced back to him through his handwriting. CertificatesThis is the c# solution for the Hackerrank problem – Mars Exploration – Hackerrank Challenge – C# Solution. Readme. 2 years ago. the price level to increase but has no effect on the unemployment rate. GREEDY. INTEGER_ARRAY order","# 2. the 100 similar. Repeated String. For each word, adjacent repeated letters are compressed in the format <character> «frequency>. 6 of 6Selamat datang di website Kami! 👋 Apa itu kITabantuin. Unordered Anagrammatic Pairs Counter. Print FunctionEasyPython (Basic)Max Score: 20Success Rate: 97. It must return the minimal cost of providing libraries to all, as an integer. A number of points along the highway are in need of repair. Hello coders, in this post you will find each and every solution of HackerRank Problems in C++ language. append(e ^ pref[-1]) ans = [] #. Reload to refresh your session. In other words, find the number of unordered pairs of substrings of S that are anagrams of each other. Overview. Reload to refresh your session. My solutions to HackerRank problems. To associate your repository with the hackerrank-problem-solutions topic, visit your repo's landing page and select "manage topics. 2. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Sorting/Fraudulent Activity Notifications":{"items":[{"name":"Solution. 3. Contribute to SHANMUKH-R/HackerRank-Solutions development by creating an account on GitHub. This is the Repository where you can find all the solution of the Problems which you solve on competitive platforms mainly HackerRank and HackerEarth Topics python natural-language-processing algorithm statistics machine-learning-algorithms competitive-programming hackerrank artificial-intelligence problem-solving coding-challenge. Are you sure you want to create this. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/balanced-system-files-partition":{"items":[{"name":"test-cases","path. Contribute to jayexioms/Hackerrank-Problem-PHP-Solution development by creating an account on GitHub. Note: This challenge introduces precision problems. . Print output to STDOUT N=raw_input() N=int(N) numbers=[] numbersInput=raw_input() for num in numbersInput. time conversion hackerrank solution stack overflow js. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/unexpected-demand":{"items":[{"name":"test-cases","path":"certificates/problem. Hackerrank Introduction Solutions In this sub-domain, we are going to solve the Introduction hackerrank solutions in the C++ programming language. January 2023. Other Similar RepositoriesWe would like to show you a description here but the site won’t allow us. You signed out in another tab or window. HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. You signed out in another tab or window. According to the. Balanced System Files Partition Problem 2 Complete Progr. Yetis. YASH PAL July 22, 2021. Built-in content library. String regex = "^[a-zA-Z][\\ w]{7,29}"; // Compile the regular expression pattern. Let the index of left most element be l, right most element be r and median index to be searched is m. Are you sure. 4 years ago Mark. Problem solving. Certificate can be viewed Here. The final answer is [2, 2, 0, 3, 1]. Perform integer division and print a/b. These are my solutions and may not be the best solution. For each query, find the minimum cost to make libraries accessible. Easy. I used the code stubs provided by HackerRank, so don't mind the unnecessary imports, naming convention and so on. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. Fibonacci Modified [Medium] Solution. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. When encrypted, the string "hack3rr4nk" becomes "43Ah*ckorronk". In this case, comment out the original solution and make a pull request with your solution. Sample test cases are those which are executed first when you run your code. You've arranged the problems in increasing difficulty order, and the i th problem has estimated difficulty level. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. 2. The STATION table is described as follows: . The first line contains an integer , denoting the number of cities. The HackerRank 2023 Developer Skills Report leverages exclusive HackerRank platform data points procured by exploring the current state of developer skills and employer hiring priorities to chart the most in-demand software engineering skills and coding languages among employers and developers alike. N which you need to complete. Java SHA-256 – Hacker Rank Solution. The following is a list of possible problems per certificate. 07 P. . This is the c++ solution for the Hackerrank problem – Sherlock and Array – Hackerrank Challenge – C++ Solution. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"2D Array - DS","path":"2D Array - DS","contentType":"file"},{"name":"3D Surface Area","path. First the words in the sentence are reversed. Balanced System File Partition; Vowel Substring ; I'll be uploading other solutions of hackerrank certifications questions in this repo. But the adamant admin does not. Sequence Equation HackerRank Solution in C, C++, Java, Python. INTEGER k","#","","def filledOrders. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. This is the Java solution for the Hackerrank problem – Lonely Integer – Hackerrank Challenge – Java Solution. The first line should contain the result of integer division, a // b. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. HackerRank C Program Solutions offer a comprehensive set of problems and solutions that will help you hone your C programming skills. Problem Solving Concepts. From this, it can easily be concluded that only customer 5 and customer 1 can be satisfied for total demand of 1 + 2 = 3. md","path":"README. Leaderboard. The following is an incomplete list of possible problems per certificate as. 05 P. 11 P. The constraints in HackerRank are part of the problem definition - they are telling us what the values can/will do so that we don't have to worry about solving a more general problem . public static void main (String [] args) {. INTEGER k","#","","def filledOrders (order, k):"," order. Python usage is widespread, with companies including Intel, IBM, Netflix, and Meta using the language. 14 P. Balance of 150-80 = 70 was adjusted against the second highest class of 50. This is the java solution for the Hackerrank problem – Angry Professor – Hackerrank Challenge – Java Solution. . Using the same approach repeatedly, can you sort an entire array? Guideline: You already can place an element into a sorted array. Table of Contents ToggleNote: This problem (Sequence Equation) is generated by HackerRank but the solution is provided by CodingBroz. Prepare Python Python Say "Hello, World!" With Python EasyMax Score: 5Success Rate: 96. Entire question and the approach to it is explained along with it an in depth explanation of the solution in English. HackerRank Maximum Subarray Sum problem solution YASH PAL March 14, 2021 In this HackerRank Maximum Subarray Sum Interview preparation kit problem you have Given an n element array of integers, a, and an integer, m, to determine the maximum value of the sum of any of its subarrays modulo m. Java Lambda Expressions – Hacker Rank Solution. 317 efficient solutions to HackerRank problems. More specifically, you have to extend the. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/unexpected-demand":{"items":[{"name":"test-cases","path":"certificates/problem. What is the minimum number of robots needed to accomplish the task?If s [i] is a number, replace it with o, place the original number at the start, and move to i+1. Hackerrank problem solving (basic) skills certification test complete solutions. Reload to refresh your session. indexOf(find) > -1) { var s = s. The function accepts following parameters:","# 1. Add this topic to your repo. java. Current projects at work require more SQL skills, so I took the time to brush up my SQL knowledge using the HackerRank coding challenges platform. Ensure that storage width of the data type of s is 64 bit. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/usernames-changes":{"items":[{"name":"test-cases","path":"certificates/problem. HackerRank Coding Problems with Solutions-1 0 Start at top left corner. cities: 2D array of integers where. The country of Byteland contains cities and bidirectional roads. 09 P. This repository contains the solution codes of the Smart Interviews Basic hackerrank page. A tag already exists with the provided branch name. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. md Go to file Go to file T; Go to line L; Copy pathProblem Solving (Basic) Skills Certification Test. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. To associate your repository with the hackerrank-problem-solving topic, visit your repo's landing page and select "manage topics. Create HackerRank Vending Machine. Welcome to Java! – Hacker Rank Solution Java Stdin and Stdout I – Hacker Rank Solution Java If-Else – Hacker Rank Solution Java Stdin and Stdout II – Hacker Rank Solution. Do you have more questions? Check out our FAQ. compile (regex); // Create a Matcher object to match the input string with the pattern. This is throw-away code that is only supposed to correctly get the job done. Python Programming (Basics) Shopping Cart; String Transformation; 2. Hackerrank-Problem-Solving-Basic-Certification-Questions Certificate : Problem 0: Active Traders Solution 0: TimeComplexity O(m+n) All Test Cases passed Problem 1: String Anagram Solution 1: TimeComplexity O(m+n) All Test Cases passedExplore my GitHub repository to learn from my experiences and find inspiration for your SQL learning path. 02 P. Counting Valleys. Are you sure you want to create this branch? Cancel. These tutorial are only for Educational and Learning. You are required to extend the existing code so that it handles std::invalid_argument exception properly. 2. get (letter, 0) - 1. Covariant Return Types – Hacker Rank Solution. HackerRank Problem Solution in PHP. You are given two values a and b. This is the Java solution for the Hackerrank problem – Equal Stacks – Hackerrank Challenge – Java Solution. Veiw Profile. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. stringAnagram has the following parameters: string dictionary [n]: an array of strings to search in string query [q]: an array of. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. Sep 2014 - Mar 2015 7 months. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/string-anagram":{"items":[{"name":"test-cases","path":"certificates/problem. (That is the case in this data set, so this will be accepted, but technically it doesn't actually solve the problem. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Aggregation. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for. Update HackerRank VendingMachine. Certificates Get started hiring with HackerRank. In this HackerRan Valid Username Regular Expression problem in the java programming language You are updating the username policy on your company's internal networking platform. Also Read: Circular Array Rotation – HackerRank Solution; Save the Prisoner! – HackerRank Solution; Viral Advertising – HackerRank SolutionThis is the java solution for the Hackerrank problem – Flipping the Matrix – Hackerrank Challenge – Java Solution. 3 Append h in s and print the resulting string on console in a new line. Problem Solving. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality, and difficulty. Using the same approach repeatedly, can you sort an entire array? Guideline: You already can place an element into a sorted array. To get a certificate, two problems have to be solved within 90 minutes. There could be a couple reasons for this: Your code doesn't match the expected output. 21%. I used the code stubs provided by HackerRank, so don't mind the unnecessary imports, naming convention and so on. Write more code and save time using our ready-made code examples. Otherwise, go to step 2. ·. All solutions of HackerRank including 30 Days Of Code using Java. Given a number of widgets available and a list of customer orders, what is the maximum number of orders the manufacturer can fulfill in full? Function Description Complete the function filledOrders in the. You signed in with another tab or window. Linear Algebra – Hacker Rank Solution. Our platform provides a range of challenges covering various C programming topics such as arrays, pointers, functions, and more. Its first-place ranking is secure for the foreseeable future. The solution to the "unexpected. hackerrank trackid=sp-006, hackerrank ui test, hackerrank unexpected demand, hackerrank unix, hackerrank upcoming contests, hackerrank url, hackerrank user id,. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/unexpected-demand":{"items":[{"name":"test-cases","path":"certificates/problem. It took me a bit more than two weeks (on and off between work, workout, and taking the kid to day school, etc. Read input from STDIN. – ppwater. Hello coders, in this post you will find each and every solution of HackerRank Problems in C language. • Increased Chupa Chups sales growth rate from -3% to 22% by extending portfolio from Lollipop to Kids Candy Category. The CITY table is described as follows:{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Algorithms","path":"Algorithms","contentType":"directory"},{"name":"Arrays and Sorting. While the characters are the same in 'stairs', the frequency of 's' differs, so it is not an anagram. The Challenges of HackerRank Solved in Scala. txt","path":"2D Array. Hackerrank-Problem-PHP-Solution. It's getting timeouts for a few test cases. Insights are based on more than 39,000 developers. Express: Recipes Pagination. Javascript Solution for Hackerrank Intermediate Rest API. 1 <= a[i] < 10^6 . Problem Solving. I copied my codes, and i didn't modify/upgrade in order to represent the real circumstances. 17 P. java","contentType":"file"},{"name":"Arrays_LeftRotation. When a programmer submits a solution to a programming challenge, their submission is scored on the accuracy of their output. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Saved searches Use saved searches to filter your results more quickly 📞 WhatsApp Group- Server- Join Our Telegram group TechNinjas2. txt","path. 3 Move to next element in the array and repeat steps 3. We would like to show you a description here but the site won’t allow us. You switched accounts on another tab or window. - hackerrank-solutions/README. Matcher; import java. Hello World. {"payload":{"allShortcutsEnabled":false,"fileTree":{"src":{"items":[{"name":"BalancedSystemFilePartition. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Solve Challenge. Take the HackerRank Skills Test. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/active-traders":{"items":[{"name":"test-cases","path":"certificates/problem. Please let me know if the certificate problems have changed, so I can put a note here. Problems with similar vi values are similar in nature. To get a certificate, two problems have to be solved within 90 minutes. Dot and Cross – Hacker Rank Solution. It covers basic topics of Data Structures (such as Arrays, Strings) and Algorithms (such as Sorting and Searching).