Computer Science / Algorithms and Data Structures

Algorithms: Sorting and Searching Course

Brought by: Treehouse

Overview

This course will look at algorithms in two categories: sorting and searching. We'll implement well-known sorting algorithms like selection sort, quicksort, and merge sort. You'll also learn basic search algorithms like sequential search and binary search.

What you'll learn

  • Recursion
  • Sorting algorithms
  • Searching algorithms
  • Big O notation

Syllabus

Sorting Algorithms

Let's look at several common sorting algorithms, including Quicksort and Merge Sort.

Chevron 15 steps

  • Sorting and Searching

    3:55

  • Bogosort

    5:39

  • instruction

    Code for Bogosort

  • Selection Sort

    6:35

  • instruction

    Code for Selection Sort

  • Getting the Run Time of a Program

    4:06

  • Recursion

    10:00

  • Quicksort

    5:54

  • Implementing Quicksort

    5:22

  • instruction

    Code for Quicksort

  • Merge Sort

    7:10

  • instruction

    Code for Merge Sort

  • Actual Run Time for Sorting Algorithms

    2:13

  • Big-O Run Times of Sorting Algorithms

    5:42

  • Sorting Algorithms

    11 questions

Searching Names

This stage will cover common algorithms for searching through an array or other collection: Linear Search and Binary Search.

Chevron 8 steps

  • Linear Search

    4:22

  • instruction

    Code for Linear Search

  • Sorting Names

    1:59

  • Binary Search

    5:18

  • instruction

    Code for Binary Search

  • Timing Our Search Scripts

    1:19

  • Big O Runtime of Search Algorithms

    1:26

  • Search Algorithms

    4 questions

Taught by

Jay McGavren

Computer Science / Algorithms and Data Structures
Algorithms: Sorting and Searching Course
Go to course

Algorithms: Sorting and Searching Course

Brought by: Treehouse

  • Treehouse
  • Paid
  • English
  • Certificate Not Available
  • Available at any time
  • intermediate
  • N/A
MessagesTimelineExceptionsViews14RouteQueries6Models5GateSessionRequest
8.1.2PHP Version643msRequest Duration2MBMemory UsageGET en/courses/{slug}Route
    • Booting (389ms)
    • Application (252ms)
    • 1 x Booting (60.52%)
      389.08ms
      1 x Application (39.22%)
      252.11ms
      14 templates were rendered
      • public.courses.show (resources/views/public/courses/show.blade.php)3bladefile
        Params
        0
        course
        1
        links
        2
        config
      • public.courses.partials.breadcrumbs (resources/views/public/courses/partials/breadcrumbs.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.courses.partials.heading (resources/views/public/courses/partials/heading.blade.php)7bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
        6
        classes
      • public.courses.partials.details (resources/views/public/courses/partials/details.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.courses.partials.breadcrumbs (resources/views/public/courses/partials/breadcrumbs.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.courses.partials.heading (resources/views/public/courses/partials/heading.blade.php)7bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
        6
        classes
      • public.layouts.main (resources/views/public/layouts/main.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.layouts.partials.meta (resources/views/public/layouts/partials/meta.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.layouts.partials.navbar (resources/views/public/layouts/partials/navbar.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.auth.profile.partials.links (resources/views/public/auth/profile/partials/links.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      • public.auth.profile.partials.link (resources/views/public/auth/profile/partials/link.blade.php)8bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
        6
        route
        7
        title
      • public.auth.profile.partials.link (resources/views/public/auth/profile/partials/link.blade.php)8bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
        6
        route
        7
        title
      • public.auth.profile.partials.link (resources/views/public/auth/profile/partials/link.blade.php)8bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
        6
        route
        7
        title
      • public.layouts.partials.flash-session (resources/views/public/layouts/partials/flash-session.blade.php)6bladefile
        Params
        0
        __env
        1
        app
        2
        errors
        3
        course
        4
        links
        5
        config
      uri
      GET en/courses/{slug}
      middleware
      web, localize:en
      controller
      App\Http\Controllers\CourseController@show
      as
      en.courses.show
      namespace
      prefix
      /en
      where
      file
      app/Http/Controllers/CourseController.php:17-35
      6 statements were executed12.62ms
      corspedia
      • select * from `courses` where `slug_en` = 'algorithms:-sorting-and-searching-course' limit 1
        11.24ms/app/Http/Controllers/CourseController.php:20corspedia
        Metadata
        Bindings
        • 0. algorithms:-sorting-and-searching-course
        Backtrace
        • 17. /app/Http/Controllers/CourseController.php:20
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 19. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 20. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • update `courses` set `visitors` = `visitors` + 1, `courses`.`updated_at` = '2025-07-20 01:32:53' where `id` = 6001
        560μs/app/Http/Controllers/CourseController.php:21corspedia
        Metadata
        Bindings
        • 0. 2025-07-20 01:32:53
        • 1. 6001
        Backtrace
        • 17. /app/Http/Controllers/CourseController.php:21
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 19. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 20. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `id`, `name_en`, `name_ar`, `topic_id`, `slug_en`, `slug_ar` from `subjects` where `subjects`.`id` in (6)
        180μs/app/Http/Controllers/CourseController.php:23corspedia
        Metadata
        Backtrace
        • 20. /app/Http/Controllers/CourseController.php:23
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `id`, `name_en`, `name_ar`, `slug_en`, `slug_ar` from `topics` where `topics`.`id` in (1)
        160μs/app/Http/Controllers/CourseController.php:23corspedia
        Metadata
        Backtrace
        • 25. /app/Http/Controllers/CourseController.php:23
        • 26. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 27. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 28. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 29. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `providers` where `providers`.`id` in (60) and `providers`.`deleted_at` is null
        210μs/app/Http/Controllers/CourseController.php:23corspedia
        Metadata
        Backtrace
        • 20. /app/Http/Controllers/CourseController.php:23
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `html_files` where `html_files`.`id` = 5992 limit 1
        270μs/app/Models/Course.php:84corspedia
        Metadata
        Bindings
        • 0. 5992
        Backtrace
        • 21. /app/Models/Course.php:84
        • 28. view::public.courses.show:29
        • 30. /vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:125
        • 31. /vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
        • 32. /vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:72
      App\Models\HtmlFile
      1
      App\Models\Provider
      1
      App\Models\Topic
      1
      App\Models\Subject
      1
      App\Models\Course
      1
        _token
        8YmIvhYitalz6h8ZNm6beQ6JD5JNGtsiS8anbAnn
        locale
        en
        _previous
        array:1 [ "url" => "https://www.corspedia.com/en/courses/algorithms:-sorting-and-searching-course"...
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /en/courses/algorithms:-sorting-and-searching-course
        status_code
        200
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        request_request
        []
        request_headers
          0 of 0   
        array:24 [▼
  "cf-ipcountry" => array:1 [▶
    0 => "US"
  ]
  "cf-connecting-ip" => array:1 [▶
    0 => "216.73.216.209"
  ]
  "cdn-loop" => array:1 [▶
    0 => "cloudflare; loops=1"
  ]
  "x-forwarded-proto" => array:1 [▶
    0 => "https"
  ]
  "x-forwarded-for" => array:1 [▶
    0 => "216.73.216.209"
  ]
  "sec-fetch-site" => array:1 [▶
    0 => "none"
  ]
  "accept" => array:1 [▶
    0 => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
  ]
  "user-agent" => array:1 [▶
    0 => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  ]
  "upgrade-insecure-requests" => array:1 [▶
    0 => "1"
  ]
  "sec-ch-ua-platform" => array:1 [▶
    0 => ""Windows""
  ]
  "sec-ch-ua-mobile" => array:1 [▶
    0 => "?0"
  ]
  "sec-ch-ua" => array:1 [▶
    0 => ""Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99""
  ]
  "cache-control" => array:1 [▶
    0 => "no-cache"
  ]
  "pragma" => array:1 [▶
    0 => "no-cache"
  ]
  "sec-fetch-dest" => array:1 [▶
    0 => "document"
  ]
  "cf-ray" => array:1 [▶
    0 => "961eb50f3ff0aa9b-YYZ"
  ]
  "accept-encoding" => array:1 [▶
    0 => "gzip, br"
  ]
  "priority" => array:1 [▶
    0 => "u=0, i"
  ]
  "sec-fetch-user" => array:1 [▶
    0 => "?1"
  ]
  "sec-fetch-mode" => array:1 [▶
    0 => "navigate"
  ]
  "cf-visitor" => array:1 [▶
    0 => "{"scheme":"https"}"
  ]
  "host" => array:1 [▶
    0 => "www.corspedia.com"
  ]
  "content-length" => array:1 [▶
    0 => ""
  ]
  "content-type" => array:1 [▶
    0 => ""
  ]
]
        request_server
          0 of 0   
        array:50 [▼
  "USER" => "www-data"
  "HOME" => "/var/www"
  "HTTP_CF_IPCOUNTRY" => "US"
  "HTTP_CF_CONNECTING_IP" => "216.73.216.209"
  "HTTP_CDN_LOOP" => "cloudflare; loops=1"
  "HTTP_X_FORWARDED_PROTO" => "https"
  "HTTP_X_FORWARDED_FOR" => "216.73.216.209"
  "HTTP_SEC_FETCH_SITE" => "none"
  "HTTP_ACCEPT" => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
  "HTTP_USER_AGENT" => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  "HTTP_UPGRADE_INSECURE_REQUESTS" => "1"
  "HTTP_SEC_CH_UA_PLATFORM" => ""Windows""
  "HTTP_SEC_CH_UA_MOBILE" => "?0"
  "HTTP_SEC_CH_UA" => ""Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99""
  "HTTP_CACHE_CONTROL" => "no-cache"
  "HTTP_PRAGMA" => "no-cache"
  "HTTP_SEC_FETCH_DEST" => "document"
  "HTTP_CF_RAY" => "961eb50f3ff0aa9b-YYZ"
  "HTTP_ACCEPT_ENCODING" => "gzip, br"
  "HTTP_PRIORITY" => "u=0, i"
  "HTTP_SEC_FETCH_USER" => "?1"
  "HTTP_SEC_FETCH_MODE" => "navigate"
  "HTTP_CF_VISITOR" => "{"scheme":"https"}"
  "HTTP_HOST" => "www.corspedia.com"
  "REDIRECT_STATUS" => "200"
  "SERVER_NAME" => "corspedia.com"
  "SERVER_PORT" => "443"
  "SERVER_ADDR" => "141.95.147.152"
  "REMOTE_USER" => ""
  "REMOTE_PORT" => "35854"
  "REMOTE_ADDR" => "172.70.80.17"
  "SERVER_SOFTWARE" => "nginx/1.18.0"
  "GATEWAY_INTERFACE" => "CGI/1.1"
  "HTTPS" => "on"
  "REQUEST_SCHEME" => "https"
  "SERVER_PROTOCOL" => "HTTP/2.0"
  "DOCUMENT_ROOT" => "/var/www/corspedia/public"
  "DOCUMENT_URI" => "/index.php"
  "REQUEST_URI" => "/en/courses/algorithms:-sorting-and-searching-course"
  "SCRIPT_NAME" => "/index.php"
  "CONTENT_LENGTH" => ""
  "CONTENT_TYPE" => ""
  "REQUEST_METHOD" => "GET"
  "QUERY_STRING" => ""
  "SCRIPT_FILENAME" => "/var/www/corspedia/public/index.php"
  "PATH_INFO" => ""
  "FCGI_ROLE" => "RESPONDER"
  "PHP_SELF" => "/index.php"
  "REQUEST_TIME_FLOAT" => 1752975173.2692
  "REQUEST_TIME" => 1752975173
]
        request_cookies
        []
        response_headers
          0 of 0   
        array:5 [▼
  "content-type" => array:1 [▶
    0 => "text/html; charset=UTF-8"
  ]
  "cache-control" => array:1 [▶
    0 => "no-cache, private"
  ]
  "date" => array:1 [▶
    0 => "Sun, 20 Jul 2025 01:32:53 GMT"
  ]
  "set-cookie" => array:2 [▶
    0 => "XSRF-TOKEN=eyJpdiI6ImlvODM1c3BhdW5CZW9qeWtDdm85aVE9PSIsInZhbHVlIjoiZ2g3ZmgyRnh3Y3RObTFwZWV6NUNLbXd0dmRCVk1nUnNEVTdiNHNRczE3WnZFSTZuQk80TEtqYmR5NExZQ1ZISXlLQldBTXRhblg2cGJVU0pWNkM0dU1kL1pZSFJWY1BlN1NnUzJMMGpMd1g0TTlTV2pvWE50UmN0NTk4ZlZ1MjgiLCJtYWMiOiIyNGM3MDkwN2U1Yjc5OWUzOWQwMWMyODYxODY5NDU2MGVkNTg0ZTMxMzlkNjM5NjM0OTE0ZDg5YjUwODA4NDY2IiwidGFnIjoiIn0%3D; expires=Sun, 20 Jul 2025 03:32:53 GMT; Max-Age=7200; path=/; samesite=lax ◀XSRF-TOKEN=eyJpdiI6ImlvODM1c3BhdW5CZW9qeWtDdm85aVE9PSIsInZhbHVlIjoiZ2g3ZmgyRnh3Y3RObTFwZWV6NUNLbXd0dmRCVk1nUnNEVTdiNHNRczE3WnZFSTZuQk80TEtqYmR5NExZQ1ZISXlLQldBT ▶"
    1 => "laravel_session=eyJpdiI6IiswUWFzNk9YUy8vZkdkcUZkaUg0SWc9PSIsInZhbHVlIjoid29FVjRYdUdUVVgyZ3ZDNks5c0gwNEdPNVhVSnFkZmNwTHFXZHgwK3ZZbFFhZkFycm1HMnBSZGpRQ1dxc1dEbUx2VXNzRXVMMTJGYnRlVU9WRlQ3Mk8vbzFoMjlsNjFKODdBMlBuR2ZWak1jRmFjd2dSRmhtbWZ0cW5ZT0FhdmgiLCJtYWMiOiI4ZmM2ODA2NzZjNDlkOWZhY2ZhMGRmNTdkZDQyYWZmZDBhM2UzZDdhOTk3MDQyOTBhZTgzY2U4YmFlMmVmYTQwIiwidGFnIjoiIn0%3D; expires=Sun, 20 Jul 2025 03:32:53 GMT; Max-Age=7200; path=/; httponly; samesite=lax ◀laravel_session=eyJpdiI6IiswUWFzNk9YUy8vZkdkcUZkaUg0SWc9PSIsInZhbHVlIjoid29FVjRYdUdUVVgyZ3ZDNks5c0gwNEdPNVhVSnFkZmNwTHFXZHgwK3ZZbFFhZkFycm1HMnBSZGpRQ1dxc1dEbUx2 ▶"
  ]
  "Set-Cookie" => array:2 [▶
    0 => "XSRF-TOKEN=eyJpdiI6ImlvODM1c3BhdW5CZW9qeWtDdm85aVE9PSIsInZhbHVlIjoiZ2g3ZmgyRnh3Y3RObTFwZWV6NUNLbXd0dmRCVk1nUnNEVTdiNHNRczE3WnZFSTZuQk80TEtqYmR5NExZQ1ZISXlLQldBTXRhblg2cGJVU0pWNkM0dU1kL1pZSFJWY1BlN1NnUzJMMGpMd1g0TTlTV2pvWE50UmN0NTk4ZlZ1MjgiLCJtYWMiOiIyNGM3MDkwN2U1Yjc5OWUzOWQwMWMyODYxODY5NDU2MGVkNTg0ZTMxMzlkNjM5NjM0OTE0ZDg5YjUwODA4NDY2IiwidGFnIjoiIn0%3D; expires=Sun, 20-Jul-2025 03:32:53 GMT; path=/ ◀XSRF-TOKEN=eyJpdiI6ImlvODM1c3BhdW5CZW9qeWtDdm85aVE9PSIsInZhbHVlIjoiZ2g3ZmgyRnh3Y3RObTFwZWV6NUNLbXd0dmRCVk1nUnNEVTdiNHNRczE3WnZFSTZuQk80TEtqYmR5NExZQ1ZISXlLQldBT ▶"
    1 => "laravel_session=eyJpdiI6IiswUWFzNk9YUy8vZkdkcUZkaUg0SWc9PSIsInZhbHVlIjoid29FVjRYdUdUVVgyZ3ZDNks5c0gwNEdPNVhVSnFkZmNwTHFXZHgwK3ZZbFFhZkFycm1HMnBSZGpRQ1dxc1dEbUx2VXNzRXVMMTJGYnRlVU9WRlQ3Mk8vbzFoMjlsNjFKODdBMlBuR2ZWak1jRmFjd2dSRmhtbWZ0cW5ZT0FhdmgiLCJtYWMiOiI4ZmM2ODA2NzZjNDlkOWZhY2ZhMGRmNTdkZDQyYWZmZDBhM2UzZDdhOTk3MDQyOTBhZTgzY2U4YmFlMmVmYTQwIiwidGFnIjoiIn0%3D; expires=Sun, 20-Jul-2025 03:32:53 GMT; path=/; httponly ◀laravel_session=eyJpdiI6IiswUWFzNk9YUy8vZkdkcUZkaUg0SWc9PSIsInZhbHVlIjoid29FVjRYdUdUVVgyZ3ZDNks5c0gwNEdPNVhVSnFkZmNwTHFXZHgwK3ZZbFFhZkFycm1HMnBSZGpRQ1dxc1dEbUx2 ▶"
  ]
]
        session_attributes
          0 of 0   
        array:5 [▼
  "_token" => "8YmIvhYitalz6h8ZNm6beQ6JD5JNGtsiS8anbAnn"
  "locale" => "en"
  "_previous" => array:1 [▶
    "url" => "https://www.corspedia.com/en/courses/algorithms:-sorting-and-searching-course"
  ]
  "_flash" => array:2 [▶
    "old" => []
    "new" => []
  ]
  "PHPDEBUGBAR_STACK_DATA" => []
]