Reorganize Algorithms and Data Structures sections in free-courses-hi.md (#11954)

* Reorganize Algorithms and Data Structures sections in free-courses-hi.md

- Merged separate Algorithms and Data Structures sections into a combined 'Algorithms and Data Structures' section
- Added subheadings for 'Algorithms' and 'Data Structures' within the combined section
- Moved common DSA courses to the main combined section
- Organized exclusive algorithm courses under 'Algorithms' subheading
- Organized exclusive data structure courses under 'Data Structures' subheading
- Updated index to reflect the new structure
- Maintained Soft Computing as a subheading under the combined section

This reorganization improves the structure and makes it easier to find relevant courses while maintaining logical grouping of related content.

* Fix linting error: correct blank lines between sections

- Fixed incorrect number of blank lines between Data Science and Databases sections
- Changed from 3 blank lines to 1 blank line as required by remark-lint
- Resolves blank-lines-1-0-2 linting rule violation

* add See [Algorithms] and [Data Structures] pointer under combined DSA section (per PR review)

* place explicit See links at old Algorithms/Data Structures positions; remove generic note

* fix blank-line spacing around new See lines to satisfy remark-lint

* move 'See Data Structures' and 'See Algorithms' directly under combined heading; remove duplicates; fix blank lines

* See pointers as separate bullet items under combined heading; also fix lint

* Fix lint #3

* ensure single blank line after See pointers before resource list

* convert See pointers to plain lines (not list items) and fix spacing

* reduce blank lines before '#### Algorithms' to exactly one

* eparate 'See' lines with a blank line; keep linter spacing

* Update courses/free-courses-hi.md

---------

Co-authored-by: Eric Hellman <[email protected]>

Author: gpl-gowthamchand

courses/free-courses-hi.md

@@ -1,6 +1,8 @@
 ### Index
 
-* [Algorithms](#algorithms)
+* [Algorithms and Data Structures](#algorithms-and-data-structures)
+    * [Algorithms](#algorithms)
+    * [Data Structures](#data-structures)
     * [Soft Computing](#soft-computing)
 * [Android](#android)
 * [Angular](#angular)
@@ -20,7 +22,6 @@
 * [Computer Graphics](#computer-graphics)
 * [Computer Organization and Architecture](#computer-organization-and-architecture)
 * [Data Science](#data-science)
-* [Data Structures](#data-structures)
 * [Databases](#databases)
 * [DevOps](#devops)
 * [Figma](#figma)
@@ -75,34 +76,55 @@
 * [WordPress](#wordpress)
 
 
-### Algorithms
+### Algorithms and Data Structures
 
-* [All Sorting algorithms and Programs](https://www.youtube.com/playlist?list=PLsFNQxKNzefK_DAUwnQwBizOmcY7aDLoY) - Saurabh Shukla
-* [Binary Search \| Interview Questions \| Coding \| Tutorials \| Algorithm](https://www.youtube.com/playlist?list=PL_z_8CaSLPWeYfhtuKHj-9MpYb6XQJ_f2) - Aditya Verma
-* [Binary Trees - by LoveBabbar](https://www.youtube.com/playlist?list=PLDzeHZWIZsTo87y1ytEAqp7wYlEP3nner) - CodeHelp - by Babbar
-* [Binary Trees - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHYxUk8dSu2_G7MR1PaGXN4) - Pepcoding
-* [Bit Manipulation - Level 2](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFJRioti3ZV7QabwoJK6eKe) - Pepcoding
 * [Complete C++ DSA Course \| Data Structures & Algorithms Playlist](https://www.youtube.com/playlist?list=PLfqMhTWNBTe137I_EPQd34TsgV6IO55pt) - Apna College
 * [Complete C++ Placement DSA Course](https://www.youtube.com/playlist?list=PLDzeHZWIZsTryvtXdMr6rPh4IDexB5NIA) - CodeHelp by Babbar
-* [Complete DAA Design and Analysis of Algorithm in one shot \| Semester Exam | Hindi](https://www.youtube.com/watch?v=z6DY_YSdyww) - KnowledgeGATE by Sanchit Sir
 * [Data Structures and Algorithms Course in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ahIappRPN0MCAgtOu3lQjQi) - CodeWithHarry
 * [Data Structures and Algorithms for GATE — Complete Playlist](https://www.youtube.com/playlist?list=PLC36xJgs4dxFCQVvjMrrjcY3XrcMm2GHy) - Gate CSE lectures by Amit Khurana
 * [Data Structures and Algorithms in Python](https://www.youtube.com/playlist?list=PLyMom0n-MBrpakdIZvnhd6PFUCKNAyKo1) - Jovian
+* [DS & Algorithms Course Using Javascript](https://www.youtube.com/playlist?list=PL_HlKez9XCSOi5thYDzipbJ2pEdzop7vx) - Technical Suneja
+* [Hindi Data Structures And Algorithms Tutorial Python](https://www.youtube.com/playlist?list=PLPbgcxheSpE3NlJ30EDpxNYU6P2Jylns8) - codebasics Hindi
+
+
+#### Algorithms
+
+* [All Sorting algorithms and Programs](https://www.youtube.com/playlist?list=PLsFNQxKNzefK_DAUwnQwBizOmcY7aDLoY) - Saurabh Shukla
+* [Binary Search \| Interview Questions \| Coding \| Tutorials \| Algorithm](https://www.youtube.com/playlist?list=PL_z_8CaSLPWeYfhtuKHj-9MpYb6XQJ_f2) - Aditya Verma
+* [Complete DAA Design and Analysis of Algorithm in one shot \| Semester Exam | Hindi](https://www.youtube.com/watch?v=z6DY_YSdyww) - KnowledgeGATE by Sanchit Sir
 * [Design And Analysis Of Algorithms](https://www.youtube.com/playlist?list=PLxCzCOWd7aiHcmS4i14bI0VrMbZTUvlTa) - Gate Smashers
 * [Design and Analysis of Algorithms](https://www.youtube.com/playlist?list=PL1QH9gyQXfgs7foRxIbIH8wmJyDh5QzAm) - The Gatehub
-* [DS & Algorithms Course Using Javascript](https://www.youtube.com/playlist?list=PL_HlKez9XCSOi5thYDzipbJ2pEdzop7vx) - Technical Suneja
 * [Dynamic Programming Playlist \| Coding \| Interview Questions \| Tutorials \| Algorithm](https://www.youtube.com/playlist?list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go) - Aditya Verma
 * [Dynamic Programming Workshop](https://www.youtube.com/playlist?list=PLqf9emQRQrnKA_EeveiXQj_uP25w8_5qL) - Vivek Gupta
-* [Generic Trees - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiEmjuIVDrwR9h5i9TT2CEU_) - Pepcoding
 * [Graph Theory](https://www.youtube.com/playlist?list=PLxCzCOWd7aiG0M5FqjyoqB20Edk0tyzVt) - Gate Smashers
+* [Recursion Playlist \| Coding \| Interview Questions \| Algorithm \| Tutorials](https://www.youtube.com/playlist?list=PL_z_8CaSLPWeT1ffjiImo0sYTcnLzo-wY) - Aditya Verma
+* [Sliding Window Algorithm - Face to Face Interviews](https://www.youtube.com/playlist?list=PL_z_8CaSLPWeM8BDJmIYDaoQ5zuwyxnfj) - Aditya Verma
+
+
+#### Data Structures
+
+* [2-D Arrays - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFkOETg2Ybq-FMuJjkZSGeH) - Pepcoding
+* [All Data Structure Concepts \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJNztGGoQC-59UhSwIaiIW3) - Saurabh Shukla
+* [Binary Trees - by LoveBabbar](https://www.youtube.com/playlist?list=PLDzeHZWIZsTo87y1ytEAqp7wYlEP3nner) - CodeHelp - by Babbar
+* [Binary Trees - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHYxUk8dSu2_G7MR1PaGXN4) - Pepcoding
+* [Bit Manipulation - Level 2](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFJRioti3ZV7QabwoJK6eKe) - Pepcoding
+* [Data Structure And Algorithms Course \| DSA Tutorial in Hindi](https://www.youtube.com/playlist?list=PLmGElG-9wxc9Us6IK6Qy-KHlG_F3IS6Q9) - ScoreShala
+* [Data Structure Programs \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJU-Sj__mljvrmJHZVKWbEm) - Saurabh Shukla
+* [Data Structure using Java](https://www.youtube.com/playlist?list=PLH9iLcrNpXtQYQiudzpZpGw0mptHc06Su) - ForMyScholars
+* [DSA-One Course- The Complete Data Structure and Algorithms Course](https://www.youtube.com/playlist?list=PLUcsbZa0qzu3yNzzAxgvSgRobdUUJvz7p) - Anuj Bhaiya
+* [Functions and Arrays - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHOV7lm2uSw4ZiVsIRsGS6r) - Pepcoding
+* [Generic Trees - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiEmjuIVDrwR9h5i9TT2CEU_) - Pepcoding
+* [Graph Data Structure & Algorithms Full Course In Hindi](https://www.youtube.com/playlist?list=PLzjZaW71kMwSrxEtvK5uQnfNQ9UjGGzA-) - Hello World
 * [Graphs - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHfqDcLZMcO9SsUDY4S3a-v) - Pepcoding
 * [Graphs - Level 2](https://www.youtube.com/playlist?list=PL-Jc9J83PIiEuHrjpZ9m94Nag4fwAvtPQ) - Pepcoding
-* [Hindi Data Structures And Algorithms Tutorial Python](https://www.youtube.com/playlist?list=PLPbgcxheSpE3NlJ30EDpxNYU6P2Jylns8) - codebasics Hindi
+* [Heap Playlist Interview Questions Coding Tutorials Data Structures](https://youtube.com/playlist?list=PL_z_8CaSLPWdtY9W22VjnPxG30CXNZpI9) - Aditya Verma 
+* [Java + Data Structures + Algorithms](https://www.youtube.com/playlist?list=PLKKfKV1b9e8ps6dD3QA5KFfHdiWj9cB1s) - Apni Kaksha
+* [Java + DSA](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3LtFWcvwpqTkUSlB32kJop) - Apna College
 * [Linked List - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiF5VZmktfqW6WVU1pxBF6l_) - Pepcoding
 * [Recursion & Backtracking - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFxaBahjslhBD1LiJAV7nKs) - Pepcoding
 * [Recursion & Backtracking - Level 2](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHO9SQ6lxGuDsZNt2mkHEn0) - Pepcoding
-* [Recursion Playlist \| Coding \| Interview Questions \| Algorithm \| Tutorials](https://www.youtube.com/playlist?list=PL_z_8CaSLPWeT1ffjiImo0sYTcnLzo-wY) - Aditya Verma
-* [Sliding Window Algorithm - Face to Face Interviews](https://www.youtube.com/playlist?list=PL_z_8CaSLPWeM8BDJmIYDaoQ5zuwyxnfj) - Aditya Verma
+* [Simplified DSA with FRAZ](https://www.youtube.com/playlist?list=PLKZaSt2df1gy75J3irj89a2vSGqeQdtDA) - Fraz
+* [Stack Playlist \| Interview Questions \| Coding \| Tutorials \| Data Structures](https://www.youtube.com/playlist?list=PL_z_8CaSLPWdeOezg68SKkeLN4-T_jNHd) - Aditya Verma
 * [Time and Space - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFc7hJ5eeCb579PS8p-en4f) - Pepcoding
 
 
@@ -285,27 +307,6 @@
 * [Python Data Science and Big Data Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agK8pojo23OHiNz3Jm6VQCH) - CodeWithHarry 
 
 
-### Data Structures
-
-* [2-D Arrays - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFkOETg2Ybq-FMuJjkZSGeH) - Pepcoding
-* [All Data Structure Concepts \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJNztGGoQC-59UhSwIaiIW3) - Saurabh Shukla
-* [C++ Full Course \| C++ Tutorial \| Data Structures & Algorithms](https://www.youtube.com/playlist?list=PLfqMhTWNBTe0b2nM6JHVCnAkhQRGiZMSJ) - Apna College
-* [Complete C++ Placement DSA Course](https://www.youtube.com/playlist?list=PLDzeHZWIZsTryvtXdMr6rPh4IDexB5NIA) - CodeHelp by Babbar
-* [Data Structure And Algorithms Course \| DSA Tutorial in Hindi](https://www.youtube.com/playlist?list=PLmGElG-9wxc9Us6IK6Qy-KHlG_F3IS6Q9) - ScoreShala
-* [Data Structure Programs \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJU-Sj__mljvrmJHZVKWbEm) - Saurabh Shukla
-* [Data Structure using Java](https://www.youtube.com/playlist?list=PLH9iLcrNpXtQYQiudzpZpGw0mptHc06Su) - ForMyScholars
-* [Data Structures and Algorithms Course in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ahIappRPN0MCAgtOu3lQjQi) - CodeWithHarry
-* [DSA-One Course- The Complete Data Structure and Algorithms Course](https://www.youtube.com/playlist?list=PLUcsbZa0qzu3yNzzAxgvSgRobdUUJvz7p) - Anuj Bhaiya
-* [Functions and Arrays - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHOV7lm2uSw4ZiVsIRsGS6r) - Pepcoding
-* [Graph Data Structure & Algorithms Full Course In Hindi](https://www.youtube.com/playlist?list=PLzjZaW71kMwSrxEtvK5uQnfNQ9UjGGzA-) - Hello World
-* [Heap Playlist Interview Questions Coding Tutorials Data Structures](https://youtube.com/playlist?list=PL_z_8CaSLPWdtY9W22VjnPxG30CXNZpI9) - Aditya Verma 
-* [Java + Data Structures + Algorithms](https://www.youtube.com/playlist?list=PLKKfKV1b9e8ps6dD3QA5KFfHdiWj9cB1s) - Apni Kaksha
-* [Java + DSA](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3LtFWcvwpqTkUSlB32kJop) - Apna College
-* [Linked Lists - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiF5VZmktfqW6WVU1pxBF6l_) - Pepcoding
-* [Simplified DSA with FRAZ](https://www.youtube.com/playlist?list=PLKZaSt2df1gy75J3irj89a2vSGqeQdtDA) - Fraz
-* [Stack Playlist \| Interview Questions \| Coding \| Tutorials \| Data Structures](https://www.youtube.com/playlist?list=PL_z_8CaSLPWdeOezg68SKkeLN4-T_jNHd) - Aditya Verma
-
-
 ### Databases
 
 * [3.1 DBMS In Hindi (Complete Playlist)](https://www.youtube.com/playlist?list=PLmXKhU9FNesR1rSES7oLdJaNFgmuj0SYV) - Knowledge Gate