Code From Scratch - Keerti Purswani

@UCyLgOIj_l-zAhy2YTn0kRbA - 13.9K subscribers

Welcome to Code From Scratch! This channel is for beginners. This is for everyone who is struggling to learn DSA concepts, is having hard time understanding concepts, writing code or being consistent! ❤️ We will be picking up all topics, one by one, understand basic concepts, solve some easy level problems and move on to medium and hard level problems of all topics. We will be consistent and will show up everyday together to learn one concept. 🚀 Together, we will ace DSA and will be able to solve any question that comes infront of us because our basics will be so damn clear!! 🔥

Home Videos Live Playlists

Deletion in BST | Tricky Question Explained with all Edge cases and CODE in Easy way!!

Deletion in BST | Tricky Question Explained with all Edge cases and CODE in Easy way!! Code From Scratch - Keerti Purswani

1K views - 3 years ago

5. TRICKY BST Question Explained in East Way with CODE | MUST watch! ✌️

5. TRICKY BST Question Explained in East Way with CODE | MUST watch! ✌️ Code From Scratch - Keerti Purswani

521 views - 3 years ago

4. LCA in BST | Lowest Common Ancestor explained in Easy Way with CODE in Detail! ✌🏻

4. LCA in BST | Lowest Common Ancestor explained in Easy Way with CODE in Detail! ✌🏻 Code From Scratch - Keerti Purswani

577 views - 3 years ago

3. Kth Smallest/Largest Element in BST | Explanation with CODE for Beginners | Become Expert with me

3. Kth Smallest/Largest Element in BST | Explanation with CODE for Beginners | Become Expert with me Code From Scratch - Keerti Purswani

2.1K views - 3 years ago

2. Insert a node in BST | Explanation with code in detail | Beginner level ✌🏻

2. Insert a node in BST | Explanation with code in detail | Beginner level ✌🏻 Code From Scratch - Keerti Purswani

696 views - 3 years ago

1. Binary Search Trees | Intro for beginners with code | Check for BST | MUST DO TOPIC!!!

1. Binary Search Trees | Intro for beginners with code | Check for BST | MUST DO TOPIC!!! Code From Scratch - Keerti Purswani

1.7K views - 3 years ago

K-ANAGRAMS | Strings | Detailed explanation with code, multiple methods with complexities! 💪🚀✌️

K-ANAGRAMS | Strings | Detailed explanation with code, multiple methods with complexities! 💪🚀✌️ Code From Scratch - Keerti Purswani

3.3K views - 3 years ago

1. Anagrams | Strings | Multiple methods with Optimisations & Code! New Series! ❤️🚀💪

1. Anagrams | Strings | Multiple methods with Optimisations & Code! New Series! ❤️🚀💪 Code From Scratch - Keerti Purswani

4.8K views - 3 years ago

8. Vertical Sum in a Binary Tree | Questions that you must practise! Ace DSA with me 🚀💪✌️

8. Vertical Sum in a Binary Tree | Questions that you must practise! Ace DSA with me 🚀💪✌️ Code From Scratch - Keerti Purswani

2.5K views - 3 years ago

7. Preorder, Postorder Traversals in Binary Tree | Understand Code in detail with visual explanation

7. Preorder, Postorder Traversals in Binary Tree | Understand Code in detail with visual explanation Code From Scratch - Keerti Purswani

840 views - 3 years ago

6. Tree traversals! Inorder Tree Traversal Code explained in easy way!! 🚀💪✌️

6. Tree traversals! Inorder Tree Traversal Code explained in easy way!! 🚀💪✌️ Code From Scratch - Keerti Purswani

1K views - 3 years ago

14. Josephus Problem | Tricky and interesting Recursion Problem that you must try 🚀💪✌️

14. Josephus Problem | Tricky and interesting Recursion Problem that you must try 🚀💪✌️ Code From Scratch - Keerti Purswani

23K views - 3 years ago

5. Count Number of SubTrees having given Sum | Recursion in Binary Trees with edge cases 🚀💪✌️

5. Count Number of SubTrees having given Sum | Recursion in Binary Trees with edge cases 🚀💪✌️ Code From Scratch - Keerti Purswani

2.5K views - 3 years ago

13. Sums of all Subsets | Recursion and Backtracking | Practise with me | Ace DSA ✌️🚀💪

13. Sums of all Subsets | Recursion and Backtracking | Practise with me | Ace DSA ✌️🚀💪 Code From Scratch - Keerti Purswani

1.9K views - 3 years ago

4. Height of Binary Tree | Medium level Binary Tree Ques Using Recursion | Time, Space Complexity ✌️

4. Height of Binary Tree | Medium level Binary Tree Ques Using Recursion | Time, Space Complexity ✌️ Code From Scratch - Keerti Purswani

1.7K views - 3 years ago

3. Root to Leaf Path Sum | Binary Trees | Medium Level | Understand recursion properly 🚀🔥💪

3. Root to Leaf Path Sum | Binary Trees | Medium Level | Understand recursion properly 🚀🔥💪 Code From Scratch - Keerti Purswani

2.5K views - 3 years ago

2. Sum of Binary Tree | Understand Time and Space Complexity | Recursion in trees ✌️🚀🔥

2. Sum of Binary Tree | Understand Time and Space Complexity | Recursion in trees ✌️🚀🔥 Code From Scratch - Keerti Purswani

2.6K views - 3 years ago

1. Binary Trees - Understand Basics | Calculate size using recursion 💪🚀

1. Binary Trees - Understand Basics | Calculate size using recursion 💪🚀 Code From Scratch - Keerti Purswani

8.1K views - 3 years ago

12. Possible words from phone numbers - Practise recursion and backtracking with me 🚀🔥💪

12. Possible words from phone numbers - Practise recursion and backtracking with me 🚀🔥💪 Code From Scratch - Keerti Purswani

2.9K views - 3 years ago

11. Generate Parantheses | The recursion question that I have asked the most in interviews! 🚀🚀

11. Generate Parantheses | The recursion question that I have asked the most in interviews! 🚀🚀 Code From Scratch - Keerti Purswani

10K views - 3 years ago

10. Amazon Interview Question | Permutation with Spaces| Practice recursion with me 🔥🚀💪

10. Amazon Interview Question | Permutation with Spaces| Practice recursion with me 🔥🚀💪 Code From Scratch - Keerti Purswani

2.5K views - 3 years ago

9. String Permutations Code using Recursion & Backtracking! Simple Explanation 💪🚀🔥

9. String Permutations Code using Recursion & Backtracking! Simple Explanation 💪🚀🔥 Code From Scratch - Keerti Purswani

5.6K views - 3 years ago

8. Find Subsets - Can you understand the variation from subsequences code? Understand details 🔥🚀

8. Find Subsets - Can you understand the variation from subsequences code? Understand details 🔥🚀 Code From Scratch - Keerti Purswani

3.2K views - 3 years ago

7. Subsequences, Power Set using Recursion Code - Practise with me, understand code in detail! 🚀🔥

7. Subsequences, Power Set using Recursion Code - Practise with me, understand code in detail! 🚀🔥 Code From Scratch - Keerti Purswani

8.1K views - 3 years ago

6. This Concept will help you solve HARD problems - Finding Subsequences, Power Set by Recursion 🚀

6. This Concept will help you solve HARD problems - Finding Subsequences, Power Set by Recursion 🚀 Code From Scratch - Keerti Purswani

4.3K views - 3 years ago

5. Binary Search, Reverse string and Check if string is Palindrome | 3 Questions using Recursion ✌️

5. Binary Search, Reverse string and Check if string is Palindrome | 3 Questions using Recursion ✌️ Code From Scratch - Keerti Purswani

3.4K views - 3 years ago

4. Print this pattern using Recursion-Write optimised recursive code that will impress interviewer🤭

4. Print this pattern using Recursion-Write optimised recursive code that will impress interviewer🤭 Code From Scratch - Keerti Purswani

4.1K views - 4 years ago

3. Can you tell the output of this recursive code? Let's visualise and practice together!! 🚀🚀🔥🔥

3. Can you tell the output of this recursive code? Let's visualise and practice together!! 🚀🚀🔥🔥 Code From Scratch - Keerti Purswani

4.1K views - 4 years ago

2. Fibonacci Visualisation | Recursion Tree and Stack | This will help you get basics for hard quess

2. Fibonacci Visualisation | Recursion Tree and Stack | This will help you get basics for hard quess Code From Scratch - Keerti Purswani

5.1K views - 4 years ago

1. Understand Recursion in Easy Way | Recursive Function, Tree, Stack | Very Imp Video!! 🚀🚀🔥🔥

1. Understand Recursion in Easy Way | Recursive Function, Tree, Stack | Very Imp Video!! 🚀🚀🔥🔥 Code From Scratch - Keerti Purswani

12K views - 4 years ago

13. Painter's Partition Problem | HARD Binary Search problem explained in EASY way

13. Painter's Partition Problem | HARD Binary Search problem explained in EASY way Code From Scratch - Keerti Purswani

7.6K views - 4 years ago

12. Book Allocation CODE | Detailed Explanation for beginners | Understand all edge cases properly🔥

12. Book Allocation CODE | Detailed Explanation for beginners | Understand all edge cases properly🔥 Code From Scratch - Keerti Purswani

4.5K views - 4 years ago

11. Book Allocation CONCEPT and WHY is it a Binary Search Question!!!! Understand BASICS 🔥🔥

11. Book Allocation CONCEPT and WHY is it a Binary Search Question!!!! Understand BASICS 🔥🔥 Code From Scratch - Keerti Purswani

9.4K views - 4 years ago

10. Identify HARD Binary Search Problems with this pattern | Understand the concept with basics🔥🚀

10. Identify HARD Binary Search Problems with this pattern | Understand the concept with basics🔥🚀 Code From Scratch - Keerti Purswani

6.8K views - 4 years ago

9. Find Bitonic Point & Search Element in Bitonic Array | Variations of Binary Search with Code 🔥🚀

9. Find Bitonic Point & Search Element in Bitonic Array | Variations of Binary Search with Code 🔥🚀 Code From Scratch - Keerti Purswani

4.9K views - 4 years ago

8. Minimum number in Sorted Rotated Array with variations of question-Practise Binary Search with me

8. Minimum number in Sorted Rotated Array with variations of question-Practise Binary Search with me Code From Scratch - Keerti Purswani

8.3K views - 4 years ago

7. Search an element in sorted rotated array | Understand Binary Search in detail & Practise with me

7. Search an element in sorted rotated array | Understand Binary Search in detail & Practise with me Code From Scratch - Keerti Purswani

4.9K views - 4 years ago

6. Find Peak Element | The MOST COMMON Binary Search Interview Question | Understand Basics 🚀🚀

6. Find Peak Element | The MOST COMMON Binary Search Interview Question | Understand Basics 🚀🚀 Code From Scratch - Keerti Purswani

10K views - 4 years ago

5. Square root of a num | Tricky Binary Search Question | Medium level question | Practice with me!

5. Square root of a num | Tricky Binary Search Question | Medium level question | Practice with me! Code From Scratch - Keerti Purswani

5.4K views - 4 years ago

4. STL Functions for Binary Search | Detailed explanation with examples & solution-Lower,Upper Bound

4. STL Functions for Binary Search | Detailed explanation with examples & solution-Lower,Upper Bound Code From Scratch - Keerti Purswani

9.2K views - 4 years ago

3. First and Last Positions of an element in sorted array | Medium Level Question | Imp🚀🚀

3. First and Last Positions of an element in sorted array | Medium Level Question | Imp🚀🚀 Code From Scratch - Keerti Purswani

8.7K views - 4 years ago

2. Binary Search Code | Searching an element in sorted array | Understand Basics 🚀🚀

2. Binary Search Code | Searching an element in sorted array | Understand Basics 🚀🚀 Code From Scratch - Keerti Purswani

9.6K views - 4 years ago

1. Intro to Binary Search | Understand concept in very easy way | Must do Topic! Imp for interviews!

1. Intro to Binary Search | Understand concept in very easy way | Must do Topic! Imp for interviews! Code From Scratch - Keerti Purswani

15K views - 4 years ago

Welcome to Code from Scratch! DSA Course for Beginners | Detailed Explanations with Code 🚀🚀🔥🔥

Welcome to Code from Scratch! DSA Course for Beginners | Detailed Explanations with Code 🚀🚀🔥🔥 Code From Scratch - Keerti Purswani

35K views - 4 years ago