algorithms-and-data-structures | Algorithms and data structures | Learning library

 by   domnikl Kotlin Version: Current License: Apache-2.0

kandi X-RAY | algorithms-and-data-structures Summary

kandi X-RAY | algorithms-and-data-structures Summary

algorithms-and-data-structures is a Kotlin library typically used in Tutorial, Learning, Example Codes applications. algorithms-and-data-structures has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Implementations of common algorithms and data structures in Kotlin, mostly done for educational purposes. See bigocheatsheet.com for time and space complexity comparisons.
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            kandi-support Support

              algorithms-and-data-structures has a low active ecosystem.
              It has 7 star(s) with 3 fork(s). There are 3 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              algorithms-and-data-structures has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of algorithms-and-data-structures is current.

            kandi-Quality Quality

              algorithms-and-data-structures has 0 bugs and 118 code smells.

            kandi-Security Security

              algorithms-and-data-structures has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              algorithms-and-data-structures code analysis shows 0 unresolved vulnerabilities.
              There are 1 security hotspots that need review.

            kandi-License License

              algorithms-and-data-structures is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              algorithms-and-data-structures releases are not available. You will need to build from source code and install.
              It has 2046 lines of code, 234 functions and 50 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            algorithms-and-data-structures Key Features

            No Key Features are available at this moment for algorithms-and-data-structures.

            algorithms-and-data-structures Examples and Code Snippets

            Migrate to the root of two nodes .
            javascriptdot img1Lines of Code : 43dot img1License : Permissive (MIT License)
            copy iconCopy
            function hanoiTowerRecursive({
              numberOfDiscs,
              fromPole,
              withPole,
              toPole,
              moveCallback,
            }) {
              if (numberOfDiscs === 1) {
                // Base case with just one disc.
                moveCallback(fromPole.peek(), fromPole.toArray(), toPole.toArray());
                cons  
            Traverse the chessboard .
            javascriptdot img2Lines of Code : 39dot img2License : Permissive (MIT License)
            copy iconCopy
            function knightTourRecursive(chessboard, moves) {
              const currentChessboard = chessboard;
            
              // If board has been completely visited then we've found a solution.
              if (isBoardCompletelyVisited(currentChessboard, moves)) {
                return true;
              }
            
              // G  
            Find all the paths in the given start .
            javascriptdot img3Lines of Code : 35dot img3License : Permissive (MIT License)
            copy iconCopy
            function findAllPaths(startVertex, paths = [], path = []) {
              // Clone path.
              const currentPath = [...path];
            
              // Add startVertex to the path.
              currentPath.push(startVertex);
            
              // Generate visited set from path.
              const visitedSet = currentPath.r  

            Community Discussions

            QUESTION

            Return value evaluation of a stored function inside a loop with let variable
            Asked 2022-Jan-19 at 11:17

            To my understanding, if the loop variable of a for loop is defined with var, then any change on that variable is applied globally. for example:

            ...

            ANSWER

            Answered 2022-Jan-19 at 11:17

            however, the above code prints 3. What is the reason for this?

            Because you assign 3 to the i variable that printNumTwo closes over. It doesn't matter that the assignment happens after printNumTwo is created, only that it is the variable that printNumTwo is using.

            The difference between var and let in for loops is that a new variable is created for the body of the loop on each loop iteration with let. But you're assigning to that variable within the loop body, so the function closing over (printNumTwo) it sees that value later when you call it.

            It's exactly like this:

            Source https://stackoverflow.com/questions/70769427

            QUESTION

            JavaScript: filter array of objects using an object
            Asked 2022-Jan-09 at 20:19

            I was trying to do the following challenge from freecodecamp: https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/wherefore-art-thou and I have a couple questions about it.

            1. Why is my attempt working in my local console but not on freecodecamp? Meaning, out of all the tests, 3 out of 4 are correct in my console, but none of them is on FCC.
            2. Why is this test whatIsInAName([{ "apple": 1, "bat": 2 }, { "bat": 2 }, { "apple": 1, "bat": 2, "cookie": 2 }], { "apple": 1, "bat": 2 }) not passing if all the others are?

            My attempt with expected results:

            ...

            ANSWER

            Answered 2022-Jan-09 at 20:19
            • Using Object#entries, get the list of key-value pairs from source
            • Using Array#filter, iterate over collection. In every iteration, using Array#every, check if all entries in the above sourceEntries match the current object

            Source https://stackoverflow.com/questions/70644869

            QUESTION

            What the point of spread operaror in JavaScript especially on this example?
            Asked 2021-Sep-02 at 16:01

            I am studying now at FreeCodeCamp, and here is a challenge:

            "We have defined a function, copyMachine which takes arr (an array) and num (a number) as arguments. The function is supposed to return a new array made up of num copies of arr. We have done most of the work for you, but it doesn't work quite right yet. Modify the function using spread syntax so that it works correctly (hint: another method we have already covered might come in handy here!)."

            And here is a solution:

            ...

            ANSWER

            Answered 2021-Sep-02 at 16:00

            It's the matter of reference.

            When using this syntax newArr.push(arr), you're pushing the original array from the argument, so whenever the arr changes its content, arrays inside newArr will also update since it is always the same one array.

            When using spread syntax, you're actually pushing a copy of that arr. This mean it's a new array that is not tied to the array you pass to a function

            Consider this

            Source https://stackoverflow.com/questions/69033473

            QUESTION

            Why does freecodecamp not let my while loop continue?
            Asked 2021-Jul-18 at 17:56
            function checkRange(num, temp) {
              for (var i = 1; i < num; i++) {
                console.log(temp % i, i, temp);
                if (temp % i != 0) {
                  return false;
                }
              }
              return true;
            }
            
            function smallestCommons(arr) {
              arr.sort((a, b) => {return a > b})
              var two = [arr[1]];
              var check = false;
              while (check == false) {
                two.push(two[two.length - 1] + arr[1])
                if (checkRange(arr[1], two[two.length - 1]) == true) {
                  check = true;
                  return two[two.length - 1];
                }
              }
              console.log(two);
              // not sure what to do with this
              return two[two.length - 1];
            }
            
            
            smallestCommons([1, 13]);
            
            ...

            ANSWER

            Answered 2021-Jul-18 at 17:32

            This was my answer when I was learning:

            Source https://stackoverflow.com/questions/68431319

            QUESTION

            How does recursion work in a Countdown function
            Asked 2021-Jun-01 at 18:00

            I'm learning a bit of JavaScript, but I'm having hard time understanding the lesson on FreeCodeCamp about the recursion countdown (link).

            In the lesson, there this initial example. But I'm confused on how it operates:

            ...

            ANSWER

            Answered 2021-Jun-01 at 17:26

            Here what the array looks like inside of each function call if this helps:

            Source https://stackoverflow.com/questions/67793271

            QUESTION

            Please suggest how to debug
            Asked 2021-Feb-05 at 02:40

            I am trying to complete the "Map the Debris" freecodecamp challenge https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/map-the-debris, and I think I've gotten it. It works from my PC's code editor, but when I copy/paste into the website area the conditions don't satisfy.

            How do I best debug this?

            My code is

            ...

            ANSWER

            Answered 2021-Feb-05 at 02:40

            You have to parse to int the orbSec variable

            Just replace this line:

            Source https://stackoverflow.com/questions/66056782

            QUESTION

            Arguments Optional - why do I get a string for arguments (2)([3])?
            Asked 2021-Feb-04 at 08:54

            This is a follow up to my questions on the Arguments Optional Challenge in Freecodecamp (see below0:

            I have now satisfied 5/6 conditions of the challenge, except for when the input is addTogether(2,([3])), which returns '23' as a string instead of the correct 'undefined'.

            If the [3] is an array, and an array is an object, shouldn't my checkNum function work to label that as undefined? Where was the string generated?

            my code now:

            ...

            ANSWER

            Answered 2021-Feb-04 at 05:28

            We can declare functions in 2 ways, the regular way:

            Source https://stackoverflow.com/questions/66039609

            QUESTION

            trying to understand this profile lookup in JavaScript
            Asked 2020-Dec-15 at 19:28

            Hello guys I am having some issues understanding this challenge from FreeCodeCamp< i just did all the steps that I was told to do on the challange but I can just get it to work, here is the link

            https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/profile-lookup

            And here is my solution

            ...

            ANSWER

            Answered 2020-Dec-15 at 19:13

            I am sharing my solution which is slightly different from yours. Compare it to your own. You will see that I only return inside my for loop when I get a positive match , otherwise I let the loop run. This is the biggest difference. You need to let the loop run fully and then through some mechanism keep track of the missing conditions . I have used two different variables to track the missing conditions here.

            Source https://stackoverflow.com/questions/65312020

            QUESTION

            What is wrong in my regex /(?=^[a-z]+\d{2,})(?=\w{5,})/ pattern?
            Asked 2020-Nov-10 at 08:06

            This regex has to match passwords that are greater than 5 characters long, do not begin with numbers, and have two consecutive digits.

            All the test cases are passing the regex test.

            My regex is /(?=^[a-z]+\d{2,})(?=\w{5,})/

            I have to use two positive lookaheads to solve this problem to pass the tests.

            But astr1on11aut is not passing the test. Why?

            Link to problem- https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/regular-expressions/positive-and-negative-lookahead

            ...

            ANSWER

            Answered 2020-Nov-10 at 07:25

            If you are not limited to using a single regex, I suggest splitting this into multiple tests in your host language (e.g. JavaScript):

            Source https://stackoverflow.com/questions/64764350

            QUESTION

            JavaScript objects update function not working
            Asked 2020-Oct-23 at 16:07

            im studying JavaScript and im trying to solve the problem in this test exercise: FreeCodeCamp Record Collection

            I can't understand why it doesnt work. The object details and the problem description are in the link above.

            ...

            ANSWER

            Answered 2020-Oct-23 at 16:07

            Let's take a look at this line:

            Source https://stackoverflow.com/questions/64503400

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install algorithms-and-data-structures

            You can download it from GitHub.

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