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Code Review Stack Exchange is a question and answer site for peer programmer code reviews. It only takes a minute to sign up. For this challenge on HackerRank :. A valley is a sequence of consecutive steps below sea level, starting with a step down from sea level and ending with a step up to sea level.

Given Gary's sequence of up and down steps during his last hike, find and print the number of valleys he walked through. Then he climbs out and up into a mountain 2 units high. Finally, he returns to sea level and ends the hike.

And I'm wondering, is there a way to filter out any elements that are the same as the element before them? The goal was to generate the array:. As you can see, I did this with a for-loop. But I'm wondering what other suggestions you'd have - maybe the. You're vastly overcomplicating the solution by introducing three arrays heightTrackerplaneTrackerand newArray. None of those is needed: just track the elevation which is a better name than heightand go by the definition:.

So, the number of valleys traversed is the number of times Gary's elevation changes from -1 to 0. Sign up to join this community. The best answers are voted up and rise to the top.

Asked 1 year, 3 months ago. Active 6 months ago. Viewed 1k times. If heightTracker[j] is negative, push "valley" into planeTracker If heightTracker[j] is positive, push "mountain" into planeTracker Otherwise, push "flat" into planeTracker So at that point, I'm left with: [ 'valley', 'valley', 'valley', 'flat', 'valley', 'valley', 'valley', 'valley', 'valley', 'flat', 'mountain', 'flat' ] And I'm wondering, is there a way to filter out any elements that are the same as the element before them?

The goal was to generate the array: [ 'valley', 'flat', 'valley', 'flat', 'mountain', 'flat'] and then count the number of times the word "valley" appears in that array.

HappyHands31 HappyHands31 1 1 silver badge 7 7 bronze badges. Active Oldest Votes. None of those is needed: just track the elevation which is a better name than heightand go by the definition: A valley is a sequence of consecutive steps below sea level, starting with a step down from sea level and ending with a step up to sea level.PRs Welcome!

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Hi am a newbie to competitive programming the only language i know is Javascript but if i select javascript option i couldn't even understand how to get input and how to print output in both the sites for some problems is Hackerrank the code looks like this.

If someone give me an example of a program how to get the inputs and print output in those sites or any solved program of those sites using javascript also will do i guess. The difference seems to be that in HackerRank, you need to convert the output to string yourself. Hope it helps! Each split will give you string with spaces in between. Once you have all the input, you are left with writing your own algorithm. Notice that I have left comments too so that you know how to debug in the editor itself.

Learn more. How to Use Javascript in Hackerrank and Hackerearth? Ask Question. Asked 3 years, 5 months ago. Active 1 year, 5 months ago. Viewed 27k times. Kannan T Kannan T 2 2 gold badges 10 10 silver badges 25 25 bronze badges. Maybe you should read the documentation on those sites? Just a thought. Since you tagged this with node. Just sayin. It would have helped on hackerearth for sure and hackerrank should not be much different?

PankajShukla tomorrow i will check and update you bro. Good luck with that. Enjoy a stellar life. I don't think it's you - Hackerrank seems to be terrible for JavaScript.

The site seems to require a lot of extra junk that a programmer doesn't normally have to program to solve the problem! Active Oldest Votes. By the way this solution also works and is an accepted solution. Hope this helps too! Pankaj Shukla Pankaj Shukla 2, 2 2 gold badges 8 8 silver badges 17 17 bronze badges. Hi Bro that works perfectly on hackerearth whereas in hackerrank it doesn't take this one as an example problem hackerrank.

Above solution for the problem you gave link for is working in HackerRank as well. Did you try?GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Work fast with our official CLI. Learn more. If nothing happens, download GitHub Desktop and try again.

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. JavaScript solutions to HackerRank problems.

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Failed to load latest commit information. View code. See also my profile. To test a solution: node filename. About JavaScript solutions to HackerRank problems. Resources Readme.GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.

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javascript country codes hackerrank

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10 Days of Javascript

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Git stats commits. Failed to load latest commit information. A Personalized Echo. Absolute Permutation. Accessing Inherited Functions.Solved entire Easy, few Medium Problems. Add a description, image, and links to the hackerrank-javascript topic page so that developers can more easily learn about it. Curate this topic. To associate your repository with the hackerrank-javascript topic, visit your repo's landing page and select "manage topics.

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We use analytics cookies to understand how you use our websites so we can make them better, e. Skip to content. Here are 43 public repositories matching this topic Language: All Filter by language. Sort options. Star Code Issues Pull requests.

javascript country codes hackerrank

Updated Mar 7, JavaScript. Updated Jul 10, JavaScript. Updated Jul 26, JavaScript. Updated Aug 4, JavaScript. Star 6. A Collection of my Hackerrank Solutions. Updated Sep 20, JavaScript. Star 5.

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My accept code at hackerrank. Updated Jul 8, JavaScript. Star 4. Updated Oct 1, JavaScript. Star 3. Solved Challenges from HackerRank. Updated Oct 8, Python. Star 2. Updated Aug 5, JavaScript. Updated Jun 24, JavaScript.

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Solutions to HackerRank's 10 Days of Javascript challenge. Updated May 9, JavaScript. Star 1. Updated Oct 10, JavaScript. Solution of HackerRank 10 Days of Javascript.