Understand the stack data structure - Python Video Tutorial | LinkedIn Learning, formerly Lynda.com

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In this video, gain a conceptual understanding of the stack data structure and how it's used."> <meta property="og:image" content="https://media.licdn.com/dms/image/v2/D560DAQHAyPtS4ZsHfA/learning-public-crop_675_1200/learning-public-crop_675_1200/0/1703185888414?e=2147483647&v=beta&t=WHBvb3WEBoRNl6tLPhqnpUKrZFPgR1f4qkJmHmwvg-s"> <meta name="twitter:image" content="https://media.licdn.com/dms/image/v2/D560DAQHAyPtS4ZsHfA/learning-public-crop_675_1200/learning-public-crop_675_1200/0/1703185888414?e=2147483647&v=beta&t=WHBvb3WEBoRNl6tLPhqnpUKrZFPgR1f4qkJmHmwvg-s">  <meta property="og:url" content="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-stack-data-structure"> <meta property="og:type" content="website"> <meta name="clientSideIngraphs" content="1" data-gauge-metric-endpoint="/learning-guest/api/ingraphs/gauge" data-counter-metric-endpoint="/learning-guest/api/ingraphs/counter"> <link rel="stylesheet" href="https://static.licdn.com/aero-v1/sc/h/b2sn84ibusnmmqygar9zphel"> <script type="application/ld+json"> {"@context":"http://schema.org/","@type":"VideoObject","name":"Understand the stack data structure - Python Data Structures and Algorithms","author":{"@type":"Person","name":"Robin Andrews","url":"https://www.linkedin.com/learning/instructors/robin-andrews"},"thumbnailUrl":"https://media.licdn.com/dms/image/v2/D560DAQHAyPtS4ZsHfA/learning-public-crop_675_1200/learning-public-crop_675_1200/0/1703185888414?e=2147483647&v=beta&t=WHBvb3WEBoRNl6tLPhqnpUKrZFPgR1f4qkJmHmwvg-s","description":"Visually study the relationship of data structures and algorithms. Learn how stacks, queues, and 2D lists are used with depth-first, breadth-first, and A-star search algorithms.","duration":"PT2M1S","datePublished":"2020-09-18","uploadDate":"2020-09-18","requiresSubscription":false,"isAccessibleForFree":true,"contentUrl":"https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-stack-data-structure","interactionCount":83051,"interactionStatistic":[{"@type":"InteractionCounter","interactionType":"http://schema.org/WatchAction","userInteractionCount":83051}],"transcript":"- [Instructor] Stacks are a very important data structure in programming and computer science. Think of a stack of plates. The top plate is the only easy access point, whether you want to add a new plate or remove an existing one. A stack is a data structure in which all insertions and deletions are made at one end called the top of the stack. The stack is a LIFO data structure that's last in first out, and it's well worth remembering this acronym. So the last element to be added is the first element to be removed. And we have some common stack operations, which are push, which is adding an item to the top of the stack. Pop, which is removing an item. Peak is when we want to see what's on the top of the stack where we don't want to remove it. And also it's very useful to have a method for checking if the stack is empty. So on this slide, we have a visual representation. It's worth noting that sometimes even though we call it the top of the stack, depending on the implementation, it may turn out to be the left-hand side or the right-hand side. So the word top doesn't necessarily mean vertically out the top. And finally, we have some applications of the stack. Now this is just a small selection, just to give you a flavor. So inside of computers, we use reverse Polish notation for evaluating arithmetic expressions. Stacks are used for syntax parsing. And in a CPU, there's a thing called a cold stack, which holds frames containing all of our local variables for each function code that we make. And that becomes particularly relevant with recursion, which we're not going to go into much in this course, but it's good to be aware of it, that's one common use of a stack inside of a computer. Also things like undo and redo operations in a word processor. And when you get into low-level and assembly programming, you're going to be making a lot of use of a stack if you go down that road as well. So this just gives you a flavor of some of the applications. Okay, so that's the concept of a stack. It's actually a very, very simple concept with a lot of surprisingly powerful applications. In the next video, we'll have a look at how to implement it in Python. 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Think of a stack of plates. The top plate is the only easy access point, whether you want to add a new plate or remove an existing one. A stack is a data structure in which all insertions and deletions are made at one end called the top of the stack. The stack is a LIFO data structure that's last in first out, and it's well worth remembering this acronym. So the last element to be added is the first element to be removed. And we have some common stack operations, which are push, which is adding an item to the top of the stack. Pop, which is removing an item. Peak is when we want to see what's on the top of the stack where we don't want to remove it. And also it's very useful to have a method for checking if the stack is empty. So on this slide, we have a visual representation. It's worth noting that sometimes even though we call it the top of the stack, depending on the implementation, it may turn out to be the left-hand side or the right-hand side. So the word top doesn't necessarily mean vertically out the top. And finally, we have some applications of the stack. Now this is just a small selection, just to give you a flavor. So inside of computers, we use reverse Polish notation for evaluating arithmetic expressions. Stacks are used for syntax parsing. And in a CPU, there's a thing called a cold stack, which holds frames containing all of our local variables for each function code that we make. And that becomes particularly relevant with recursion, which we're not going to go into much in this course, but it's good to be aware of it, that's one common use of a stack inside of a computer. Also things like undo and redo operations in a word processor. And when you get into low-level and assembly programming, you're going to be making a lot of use of a stack if you go down that road as well. So this just gives you a flavor of some of the applications. Okay, so that's the concept of a stack. 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Pathfinding Algorithms in a Maze Game <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 1. Pathfinding Algorithms in a Maze Game <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-example-application?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <icon class="table-of-contents__item-status table-of-contents__item-status--unlocked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/5jwhkytplzxiejvhzfu0t7m8l" data-svg-class-name="table-of-contents__item-status-svg--unlocked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the example application </div> <div class="table-of-contents__item-duration"> 6m 28s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/navigate-the-gui?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Navigate the GUI </div> <div class="table-of-contents__item-duration"> 3m 8s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button show-more-less__button--hide" aria-expanded="true" data-tracking-control-name="learning-course_toc-section_show_more"> 2. The Stack Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button " aria-expanded="true" data-tracking-control-name="learning-course_toc-section_show_more"> 2. The Stack Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list " data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item toc-item--active"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-stack-data-structure?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="true"> <icon class="table-of-contents__item-status table-of-contents__item-status--unlocked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/5jwhkytplzxiejvhzfu0t7m8l" data-svg-class-name="table-of-contents__item-status-svg--unlocked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the stack data structure </div> <div class="table-of-contents__item-duration"> 2m 1s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/build-a-stack-class-in-python?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Build a stack class in Python </div> <div class="table-of-contents__item-duration"> 13m </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-reverse-a-string-using-a-stack-19861494?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Reverse a string using a stack </div> <div class="table-of-contents__item-duration"> 2m 22s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 3. The 2D List Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 3. The 2D List Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-2d-list-data-structure?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the 2D list data structure </div> <div class="table-of-contents__item-duration"> 1m 44s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/represent-a-maze-as-a-2d-list?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Represent a maze as a 2D list </div> <div class="table-of-contents__item-duration"> 4m 15s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/read-a-maze-from-a-text-file?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Read a maze from a text file </div> <div class="table-of-contents__item-duration"> 4m 54s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/challenge-read-and-display-a-maze-from-a-text-file?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Challenge: Read and display a maze from a text file </div> <div class="table-of-contents__item-duration"> 34s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-read-and-display-a-maze-from-a-text-file?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Read and display a maze from a text file </div> <div class="table-of-contents__item-duration"> 1m 14s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 4. Depth-First Search Algorithm <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 4. Depth-First Search Algorithm <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-depth-first-search-algorithm?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the depth-first search algorithm </div> <div class="table-of-contents__item-duration"> 3m 28s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/visualize-depth-first-search-on-a-grid?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Visualize depth-first search on a grid </div> <div class="table-of-contents__item-duration"> 5m 21s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/use-the-grid-tracer-app?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Use the Grid Tracer app </div> <div class="table-of-contents__item-duration"> 2m 35s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/code-a-depth-first-search-in-python?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Code a depth-first search in Python </div> <div class="table-of-contents__item-duration"> 12m 10s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/challenge-trace-the-path-of-a-depth-first-search?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Challenge: Trace the path of a depth-first search </div> <div class="table-of-contents__item-duration"> 44s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-trace-the-path-of-a-depth-first-search?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Trace the path of a depth-first search </div> <div class="table-of-contents__item-duration"> 34s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 5. The Queue Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 5. The Queue Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-queue-data-structure?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the queue data structure </div> <div class="table-of-contents__item-duration"> 2m 20s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/build-a-queue-class-in-python?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Build a queue class in Python </div> <div class="table-of-contents__item-duration"> 9m 25s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-practice-queue-methods-19863377?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Practice queue methods </div> <div class="table-of-contents__item-duration"> 2m 57s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 6. The Breadth-First Search Algorithm <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 6. The Breadth-First Search Algorithm <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-breadth-first-search-algorithm?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the breadth-first search algorithm </div> <div class="table-of-contents__item-duration"> 3m 1s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/visualize-breadth-first-search-in-a-grid?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Visualize breadth-first search in a grid </div> <div class="table-of-contents__item-duration"> 5m 10s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/code-a-breadth-first-search-in-python?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Code a breadth-first search in Python </div> <div class="table-of-contents__item-duration"> 6m 39s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/challenge-trace-the-path-of-a-breadth-first-search?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Challenge: Trace the path of a breadth-first search </div> <div class="table-of-contents__item-duration"> 30s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-trace-the-path-of-a-breadth-first-search?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Trace the path of a breadth-first search </div> <div class="table-of-contents__item-duration"> 37s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 7. The Priority Queue Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 7. The Priority Queue Data Structure <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-priority-queue-data-structure?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the priority queue data structure </div> <div class="table-of-contents__item-duration"> 1m 20s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/use-the-heap-module-to-implement-a-priority-queue?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Use the heap module to implement a priority queue </div> <div class="table-of-contents__item-duration"> 7m 39s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-heapq-methods-practice-19862403?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Heapq methods practice </div> <div class="table-of-contents__item-duration"> 2m 29s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 8. The A* Search Algorithm <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> 8. The A* Search Algorithm <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/understand-the-a-search-algorithm?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Understand the A* search algorithm </div> <div class="table-of-contents__item-duration"> 4m 41s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/visualize-the-a-algorithm?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Visualize the A* algorithm </div> <div class="table-of-contents__item-duration"> 10m 50s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/code-the-a-algorithm-in-python?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Code the A* algorithm in Python </div> <div class="table-of-contents__item-duration"> 8m 1s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/challenge-trace-the-path-of-an-a-search?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Challenge: Trace the path of an A* search </div> <div class="table-of-contents__item-duration"> 50s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/solution-trace-the-path-of-an-a-search?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Solution: Trace the path of an A* search </div> <div class="table-of-contents__item-duration"> 1m 34s </div> </div> </a> </li> </ul>  </div> </li> <li class="toc-section"> <div class="show-more-less"> <button class="show-more-less__button show-more-less__more-button show-more-less-button " aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> Conclusion <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cyolgscd0imw2ldqppkrb84vo"></icon> </button> <button class="show-more-less__button show-more-less__less-button show-more-less-button show-more-less__button--hide" aria-expanded="false" data-tracking-control-name="learning-course_toc-section_show_more"> Conclusion <icon class="show-more-less__button--chevron show-more-less-button-icon" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/4chtt12k98xwnba1nimld2oyg"></icon> </button> <ul data-max-num-to-show="0" class="show-more-less__list show-more-less__list--hide-after-0" data-impression-id="learning-course_toc-section_show-more-less"> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/pathfinding-algorithms-in-the-course-maze-gui?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Pathfinding algorithms in the course maze GUI </div> <div class="table-of-contents__item-duration"> 3m 28s </div> </div> </a> </li> <li class="toc-item"> <a data-tracking-control-name="learning-course_tocItem" data-tracking-will-navigate href="https://www.linkedin.com/learning/python-data-structures-and-algorithms/parting-comments-and-what-comes-next?autoplay=true&trk=learning-course_tocItem" class="toc-item__link" aria-current="false"> <span class="a11y-text">(Locked)</span> <icon class="table-of-contents__item-status table-of-contents__item-status--locked" data-delayed-url="https://static.licdn.com/aero-v1/sc/h/cfu0devb5o77ym5x8vv0oilfz" data-svg-class-name="table-of-contents__item-status-svg--locked"></icon> <div class="table-of-contents__item-details"> <div class="table-of-contents__item-title"> Parting comments and what comes next </div> <div class="table-of-contents__item-duration"> 1m 34s </div> </div> </a> </li> </ul>  </div> </li> </ul> </section> </section> </main> <div class="pre-footer "> <section class="core-section-container my-3 price-disclaimer">    <div class="core-section-container__content break-words"> <p class="price-disclaimer__copy"> <sup class="price-disclaimer__copy--sup">*</sup>Price may change based on profile and billing country information entered during Sign In or Registration </p> </div> </section> <section class="tw-linkster bg-cool-gray-20 browse-map" data-impression-id="learning-course_linkster" data-js-module-id="linkster"> <div class="max-w-screen-content-max-w w-full flex justify-between my-0 mx-auto mamabear:px-3 babybear:px-2 babybear:flex-col"> <div class="flex-1 w-1/2 pt-2 pr-4 pb-4 pl-0 babybear:pb-2 babybear:w-full babybear:border-b-1 babybear:border-solid babybear:border-color-border-low-emphasis babybear:last:border-b-0"> <h3 class="text-md font-bold text-color-text leading-open"> Explore Business Topics </h3> <ul class="my-1"> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/business-analysis-and-strategy?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Business Analysis and Strategy </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/business-software-and-tools?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Business Software and Tools </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" 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href="https://www.linkedin.com/learning/topics/sales-3?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Sales </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/small-business-and-entrepreneurship?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Small Business and Entrepreneurship </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/training-and-education?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Training and Education </a> </li> </ul> <a class="link tw-linkster-general-link" aria-label="See all business courses" href="https://www.linkedin.com/learning/topics/business?trk=learning-course_browsemap_general-link" data-tracking-control-name="learning-course_browsemap_general-link" data-tracking-will-navigate> See all </a> </div> <div class="flex-1 w-1/2 pt-2 pr-4 pb-4 pl-0 babybear:pb-2 babybear:w-full babybear:border-b-1 babybear:border-solid babybear:border-color-border-low-emphasis babybear:last:border-b-0"> <h3 class="text-md font-bold text-color-text leading-open"> Explore Creative Topics </h3> <ul class="my-1"> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/aec?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> AEC </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/animation-and-illustration?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Animation and Illustration </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/audio-and-music?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Audio and Music </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/graphic-design?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Graphic Design </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/motion-graphics-and-vfx?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Motion Graphics and VFX </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/photography-2?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Photography </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/product-and-manufacturing?trk=learning-course_browsemap_link" data-js-module-id="link-column-link" data-tracking-control-name="learning-course_browsemap_link" data-tracking-will-navigate> Product and Manufacturing </a> </li> <li class="tw-link-column-item"> <a class="link tw-linkster-link" href="https://www.linkedin.com/learning/topics/user-experience?trk=learning-course_browsemap_link" 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focus:text-color-text-on-dark language-selector__link !font-regular" data-tracking-control-name="language-selector-ja_JP" data-locale="ja_JP" role="menuitem" lang="ja_JP"> 日本語 (Japanese) </button> </li> <li class="language-selector__item" role="presentation">  <button aria-label="한국어 (Korean)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer hover:bg-color-action hover:text-color-text-on-dark focus:bg-color-action focus:text-color-text-on-dark language-selector__link !font-regular" data-tracking-control-name="language-selector-ko_KR" data-locale="ko_KR" role="menuitem" lang="ko_KR"> 한국어 (Korean) </button> </li> <li class="language-selector__item" role="presentation">  <button aria-label="मराठी (Marathi)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer hover:bg-color-action hover:text-color-text-on-dark focus:bg-color-action focus:text-color-text-on-dark language-selector__link !font-regular" 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role="menuitem" lang="nl_NL"> Nederlands (Dutch) </button> </li> <li class="language-selector__item" role="presentation">  <button aria-label="Norsk (Norwegian)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer hover:bg-color-action hover:text-color-text-on-dark focus:bg-color-action focus:text-color-text-on-dark language-selector__link !font-regular" data-tracking-control-name="language-selector-no_NO" data-locale="no_NO" role="menuitem" lang="no_NO"> Norsk (Norwegian) </button> </li> <li class="language-selector__item" role="presentation">  <button aria-label="ਪੰਜਾਬੀ (Punjabi)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer hover:bg-color-action hover:text-color-text-on-dark focus:bg-color-action focus:text-color-text-on-dark language-selector__link !font-regular" data-tracking-control-name="language-selector-pa_IN" data-locale="pa_IN" role="menuitem" lang="pa_IN"> ਪੰਜਾਬੀ (Punjabi) </button> </li> <li 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(Romanian)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer hover:bg-color-action hover:text-color-text-on-dark focus:bg-color-action focus:text-color-text-on-dark language-selector__link !font-regular" data-tracking-control-name="language-selector-ro_RO" data-locale="ro_RO" role="menuitem" lang="ro_RO"> Română (Romanian) </button> </li> <li class="language-selector__item" role="presentation">  <button aria-label="Русский (Russian)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer hover:bg-color-action hover:text-color-text-on-dark focus:bg-color-action focus:text-color-text-on-dark language-selector__link !font-regular" data-tracking-control-name="language-selector-ru_RU" data-locale="ru_RU" role="menuitem" lang="ru_RU"> Русский (Russian) </button> </li> <li class="language-selector__item" role="presentation">  <button aria-label="Svenska (Swedish)" class="font-sans text-xs link block py-[5px] px-2 w-full hover:cursor-pointer 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