Designed for students and aspirants preparing for Coding exams who need organized study routines without getting lost in YouTube rabbit holes.
No prior paid software or specialized tools required. Start directly with lesson #1 and build conceptual depth at your own pace.
Master all 230 lessons step-by-step, generate personal revision notes, and retain difficult topics through active recall and structured scheduling.
Full index of topics and video runtimes included in this course.
DSA Python Course 2026 - Data Structures & Algorithms Using Python - Part 1 [Hindi] | Code & Debug
0:56Time and Space Complexity? - DSA Python Course - Part 2 [Hindi] | Code & Debug
36:16What is Time Limit Exceeded (TLE) Error? - DSA Python Course - Part 3 [Hindi] | Code & Debug"
5:28Time Complexity of Common Python Operations & Methods - DSA Python Course 2025 - Part 4 [Hindi]
14:05DSA in Python - Extraction of Digits Using Loops - Part 5 [Hindi] | Code & Debug
6:14DSA in Python Course - Count the Number of Digits in an Integer - Part 6 [Hindi] | Code & Debug
8:32DSA in Python Course - Check if a Number is Palindrome or Not - Part 7 [Hindi] | Code & Debug
9:31DSA in Python Course - Armstrong Number Explained - Part 8 [Hindi] | Code & Debug
8:51DSA in Python Course - Print All Factors of a Given Number - Part 9 [Hindi] | Code & Debug
20:28DSA Python Course 2025 - Store Frequency in Dictionary - Part 10 [Hindi] | Code & Debug
16:50DSA Python Course 2025 - Introduction to Hashing in Python - Part 11 [Hindi] | Code & Debug
27:47DSA Python Course 2025 - Introduction to Recursion Concept - Part 12 [Hindi] | Code & Debug
25:03DSA Python Course 2025 - Recursion Using Parameters - Part 13 [Hindi] | Code & Debug
18:31DSA Python Course 2025 - What is Functional Recursion? - Part 14 [Hindi] | Code & Debug
16:18DSA Python Course 2025 - Find the Factorial of a Number - Part 15 [Hindi] | Code & Debug
9:06DSA in Python Course - Reverse an Array Using Recursion - Part 16 [Hindi] | Code & Debug
15:00DSA in Python Course- Check if a String is Palindrome or Not - Part 17 [Hindi] | Code & Debug
20:57DSA in Python Course - Find the Fibonacci Number - Part 18 [Hindi] | Code & Debug
11:18DSA in Python Course - Selection Sort in Python - Part 19 [Hindi] | Code & Debug
13:13DSA in Python Course - Bubble Sort in Python - Part 20 [Hindi] | Code & Debug
17:43DSA in Python Course - Insertion Sort in Python - Part 21 [Hindi] | Code & Debug
17:53DSA in Python Course - Merge Sort in Python - Part 22 [Hindi] | Code & Debug
31:56DSA in Python Course - Quick Sort Algorithm in Python - Part 23 [Hindi] | Code & Debug
29:34DSA in Python Course - Find the Largest Element in an Array - Part 24 [Hindi] | Code & Debug
9:49DSA in Python Course - Find the Second Largest Element in an Array Without Sorting - Part 25
15:02DSA in Python Course - Check if an Array is Sorted - Part 26 [Hindi] | Code & Debug
5:22DSA in Python Course - Remove Duplicates from a Sorted Array - Part 27 [Hindi] | Code & Debug
20:05DSA in Python Course - Right Rotate an Array by One Place - Part 28 [Hindi] | Code & Debug
9:32DSA in Python Course - Leetcode 189: Right Rotate an Array by K Places - Part 29 [Hindi]
22:17DSA in Python Course - Leetcode 283: Move Zeros to the End of the List - Part 30 [Hindi]
18:14DSA in Python Course - Implementing Linear Search - Part 31 [Hindi] | Code & Debug
4:53DSA in Python Course - Merge 2 Sorted Arrays Without Duplicates - Part 32 [Hindi] | Code & Debug
14:43DSA in Python Course - Leetcode 268: Find Missing Number in an Array - Part 33 [Hindi]
14:44DSA in Python Course - Leetcode 485: Max Consecutive Ones - Part 34 [Hindi] | Code & Debug
9:46DSA in Python Course - Leetcode 1: Two Sum Problem - Part 35 [Hindi] | Code & Debug
16:44DSA in Python Course - Leetcode 53: Find the Maximum Subarray Sum - Part 36 [Hindi] | Code & Debug
19:40DSA in Python Course - Leetcode 121: Best Time to Buy and Sell Stock - Part 37 [Hindi]
17:17DSA in Python Course - Leetcode 2149: Rearrange Array Elements by Sign - Part 38 [Hindi]
18:17DSA in Python Course - Leetcode 128: Longest Consecutive Sequence - Part 39 [Hindi] | Code & Debug
29:53DSA in Python Course - Learn About 2D List or Matrix - Part 40 [Hindi] | Code & Debug
25:53DSA in Python Course - Leetcode 73: Set Matrix Zeros - Part 41 [Hindi] | Code & Debug
30:18DSA in Python Course - Leetcode 48: Rotate Matrix by 90 Degrees - Part 42 [Hindi] | Code & Debug
26:58DSA in Python Course - Leetcode 54: Print the Matrix in Spiral Order - Part 43 [Hindi]
21:40DSA in Python Course - Leetcode 15: 3Sum Problem - Part 44 [Hindi]
39:46DSA in Python Course - Leetcode 18: 4Sum Problem - Part 45 [Hindi] | Code & Debug
39:10DSA in Python Course - Introduction to Binary Search - Part 46 [Hindi] | Code & Debug
35:06DSA in Python Course - Implementation of Lower and Upper Bound - Part 47 [Hindi] | Code & Debug
22:39DSA in Python - Leetcode 35: Search Insert Position | Binary Search Optimization - Part 48 [Hindi]
7:24DSA in Python Course - Floor & Ceil in Sorted Array | Binary Search Approach - Part 49 [Hindi]
10:50DSA in Python - Find First & Last Occurrence in Sorted Array | Binary Search - Part 50 [Hindi]
16:10DSA in Python Course - Count Occurrences in Sorted Array | Binary Search Approach - Part 51 [Hindi]
10:24DSA in Python Course - Search in Rotated Sorted Array | Binary Search Approach - Part 52 [Hindi]
18:29DSA in Python - Search in Rotated Sorted Array II | Binary Search with Duplicate - Part 53 [Hindi]
12:19DSA in Python Course - Find Minimum in Rotated Sorted Array | Binary Search - Part 54 [Hindi]
16:57Introduction to Linked Lists in Python | Real-Life Example | Memory Allocation - Part 55 [Hindi]
11:08Singly Linked List Operations | Traversal, Insertion, Deletion, Append in Python - Part 56 [Hindi]
41:11DSA in Python - Leetcode 876: Middle of the Linked List | Tortoise-Hare Approach - Part 57 [Hindi]
15:17DSA in Python Course - Reverse a Linked List | Iterative Approach - Part 58 [Hindi]
19:21DSA in Python Course - Leetcode 141: Linked List Cycle | Floyd’s Cycle Detection - Part 59 [Hindi]
17:34DSA in Python - Leetcode 142: Linked List Cycle II | Find the Cycle Starting Point - Part 60 [Hindi]
18:00DSA in Python Course - Find Length of Loop in Linked List | Floyd Cycle Detection Algo - Part 61
16:55DSA in Python Course - Leetcode 328: Odd Even Linked List | Rearrange Nodes | Part 62 [Hindi]
23:21DSA Python - Leetcode 19: Remove Nth Node from End of List | Two Pointer Approach - Part 63 [Hindi]
20:04DSA in Python Course - What is a Doubly Linked List? | Real Life Example | Part 162 [Hindi]
4:51DSA in Python - Doubly Linked List Methods Explained with Code | Insert, Delete, Traverse | Part 163
23:27DSA in Python Course - Reverse a Doubly Linked List | GFG Practice | Part 164 [Hindi]
17:34DSA in Python - Delete All Occurrences of a Key in Doubly Linked List | GFG Practice | Part 165
14:41DSA in Python - Find Pairs with Given Sum in Doubly Linked List | Brute to Optimal | GFG | Part 166
26:24DSA in Python Course - Remove Duplicates from a Sorted Doubly Linked List | GFG Practice | Part 167
9:32DSA in Python - Introduction to Bit Manipulation | AND, OR, XOR, NOT, Shift Operations - Part 64
33:43DSA in Python - Bit Manipulation Basics | Swapping, Setting, Clearing, Toggling Bits - Part 65
33:01DSA in Python - Minimum Bit Flips to Convert Number | Bit Manipulation | Leetcode 2220 - Part 66
9:42DSA in Python - Single Number | Bit Manipulation & XOR Trick | Leetcode 136 - Part 67 [Hindi]
8:13DSA in Python - Generate Subsets Using Bit Manipulation | Power Set | Leetcode 78 - Part 68 [Hindi]
15:10DSA in Python - Advanced Recursion | Generate All Subsequences Using Recursion - Part 69 [Hindi]
35:58DSA in Python - Advanced Recursion | Generate Subsequences with Sum K | Backtracking - Part 70
33:11DSA in Python Course - Backtracking | Check if a Subsequence with Sum = K Exists | Part 71 [Hindi]
22:41DSA in Python - Advanced Recursion | Count All Subsequences with Sum K | Backtracking - Part 72
24:15DSA in Python - Generate All Binary Strings | Backtracking & Recursion | GFG - Part 73 [Hindi]
24:15DSA in Python - Generate Parentheses | Recursion & Backtracking | Leetcode 22 - Part 74 [Hindi]
25:42DSA in Python - Combination Sum | Recursion & Backtracking | Leetcode 39 - Part 75 [Hindi]
24:37DSA in Python - Combination Sum II | Recursion & Backtracking | Leetcode 40 - Part 76 [Hindi]
33:22DSA in Python - Subset Sums | Recursion & Backtracking | GFG Problem - Part 77 [Hindi]
16:26DSA in Python - Combination Sum III | Recursion & Backtracking | Leetcode 216 - Part 78 [Hindi]
21:58DSA in Python - Letter Combinations of a Phone Number | Backtracking | Leetcode 17 - Part 79 [Hindi]
20:56DSA in Python - N-Queens Problem | Recursion & Backtracking | Leetcode 51 - Part 80 [Hindi]
48:28DSA in Python - Rat in a Maze | Recursion & Backtracking | GFG Problem - Part 81 [Hindi]
29:49DSA in Python - Implement Stack using Arrays | Stack Data Structure Explained - Part 82 [Hindi]
21:12DSA in Python - Implement Queue using Arrays | Queue Data Structure Explained - Part 83 [Hindi]
14:35DSA in Python - Understanding Deque in Python | append, popleft, appendleft, pop | Part 84 [Hindi]
9:04DSA in Python - Implement Stack using Queue | Two Approaches Explained | Part 85 [Hindi]
13:05DSA in Python - Implement Queue using Stack | Using Two Stacks Explained | Part 86 [Hindi]
11:51DSA in Python Course - Implement Stack & Queue using Doubly Linked List - Part 87 [Hindi]
8:55DSA in Python Course - Valid Parentheses | Stack-Based Approach | Leetcode 20 - Part 88 [Hindi]
16:22DSA in Python Course - Min Stack | Get Minimum in O(1) using Stack | Leetcode 155 - Part 89 [Hindi]
11:11DSA in Python Course - Infix, Postfix & Prefix | Conversions Explained with Stack - Part 90 [Hindi]
45:40DSA in Python - Next Greater Element | Monotonic Stack Approach | GFG Problem - Part 91 [Hindi]
20:08DSA Python - Next Greater Element II | Circular Array using Stack | Leetcode 503 - Part 92 [Hindi]
12:47DSA in Python - Asteroid Collision | Stack Simulation | Leetcode 735 - Part 93 [Hindi]
18:14DSA in Python - Longest Substring Without Repeating Characters | Leetcode 3 - Part 94 [Hindi]
29:03DSA in Python - Max Consecutive Ones III | Sliding Window Approach | Leetcode 1004 - Part 95 [Hindi]
28:46DSA in Python - Fruit Into Baskets | Brute, Better & Optimal | Leetcode 904 - Part 96 [Hindi]
30:45DSA in Python Course - Maximum Points You Can Obtain from Cards | Leetcode 1423 - Part 97 [Hindi]
11:56DSA in Python - Assign Cookies | Greedy Optimal O(nlogn) Solution | Leetcode 455 - Part 98 [Hindi]
12:17DSA in Python - Fractional Knapsack | Greedy + Sorting Optimal Solution | GFG - Part 99 [Hindi]
20:08DSA in Python - Minimum Number of Coins | Greedy Optimal Solution | GFG - Part 100 [Hindi]
9:22DSA in Python - Lemonade Change | Greedy Solution | Leetcode 860 - Part 101 [Hindi]
11:13DSA Python - N Meetings in One Room | Greedy Scheduling Optimal Solution | GFG - Part 102 [Hindi]
15:42DSA in Python - Jump Game | Optimal Greedy | Leetcode 55 - Part 103 [Hindi]
9:46DSA in Python - Jump Game II | Recursion to Greedy (All Approaches) | Leetcode 45 - Part 104 [Hindi]
21:13DSAPython - Minimum Platforms Required | Brute Force to Optimal Two-Pointer | GFG - Part 105 [Hindi]
18:39DSA Python - Introduction to Binary Trees | Concepts, Terminology, Types Explained | Part 106[Hindi]
16:38DSA in Python - Binary Tree Implementation | Node Class & Tree Construction | Part 107 [Hindi]
8:45DSA in Python - DFS in Binary Trees | Preorder, Inorder, Postorder Traversal - Part 108 [Hindi]
23:31DSA in Python - Level Order Traversal (BFS) in Binary Tree | Using Deque | Part 109 [Hindi]
11:39DSA in Python - Height of Binary Tree | DFS & BFS Approaches | Leetcode 104 - Part 110 [Hindi]
18:39DSA in Python - Diameter of Binary Tree | Optimized DFS Approach | Leetcode 543 - Part 111 [Hindi]
11:22DSA Python 2025 - Check if Binary Tree is Height Balanced | Optimized DFS - Part 112 [Hindi]
10:13DSA Python - Binary Tree Maximum Path Sum | Optimized DFS Approach | Leetcode 124 - Part 113 [Hindi]
13:53DSA in Python - Top View of Binary Tree | Vertical Line BFS + Hashmap | GFG - Part 114 [Hindi]
14:55DSA in Python - Bottom View of Binary Tree | BFS + Line Mapping | GFG - Part 115 [Hindi]
8:36DSA in Python - Right Side View of Binary Tree | BFS + Reverse DFS | Leetcode 199 - Part 116 [Hindi]
19:24DSA Python 2025 - Introduction to Graphs | Nodes, Edges, Cycles, Weighted Graphs - Part 117 [Hindi]
15:55DSA Python - Graph Representation in Python | Adjacency Matrix, List & Dictionary - Part 118 [Hindi]
22:44DSA with Python - What Are Connected Components in Graphs? - Part 119 [Hindi]
6:40DSA Python - Breadth First Search (BFS) in Graph | Queue + Visited Logic | GFG - Part 120 [Hindi]
21:34DSA Python - Depth First Search (DFS) in Graph | Recursion + Visited Set | GFG - Part 121 [Hindi]
19:11DSA with Python - Rotting Oranges | BFS Grid Traversal | Leetcode 994 - Part 122 [Hindi]
29:28DSA with Python - Flood Fill Algorithm | DFS & BFS Grid Coloring | Leetcode 733 - Part 123 [Hindi]
34:03DSA in Python - Detect Cycle in Undirected Graph | BFS with Parent Tracking | GFG - Part 124 [Hindi]
21:13DSA Python 2025 - Detect Cycle in Undirected Graph | DFS with Parent Check | GFG - Part 125 [Hindi]
15:24DSA Python - 01 Matrix | Multi-Source BFS for Shortest Distance | Leetcode 542 - Part 126 [Hindi]
25:42DSA Python 2025 - Surrounded Regions | Boundary DFS Grid Fill | Leetcode 130 - Part 127 [Hindi]
29:08DSA Python - Number of Enclaves | Boundary BFS Grid Traversal | Leetcode 1020 - Part 128 [Hindi]
25:23DSA Python 2025 - Word Ladder | BFS for Shortest Transformation | Leetcode 127 - Part 129 [Hindi]
35:06DSA Python 2025 - Word Ladder II | All Shortest Paths Using BFS | Leetcode 126 - Part 130 [Hindi]
23:06DSA Python 2025 - Number of Islands | DFS & BFS Grid Traversal | Leetcode 200 - Part 131 [Hindi]
25:18DSA Python 2025 - Count Distinct Islands Using DFS | Shape Normalization | GFG - Part 132 [Hindi]
30:40DSA Python 2025 - Check If Graph is Bipartite Using DFS | Leetcode 785 - Part 133 [Hindi]
23:42DSA Python - Topological Sort Using DFS | GFG Problem | Directed Acyclic Graph - Part 135 [Hindi]
17:10DSA Python - Detect Cycle in Directed Graph | GFG Problem | DFS + Path Visited - Part 134 [Hindi]
23:13DSA Python - Topological Sort using Kahn's Algorithm | GFG Problem | BFS on DAG - Part 136 [Hindi]
15:24DSA Python - Detect Cycle in Directed Graph using Kahn’s Algorithm | GFG Problem - Part 137 [Hindi]
6:13DSA Python 2025 - Course Schedule I & II | Kahn’s Algo | Leetcode 207 & 210 - Part 138 [Hindi]
11:59DSA Python - Eventual Safe States | BFS | Reverse Graph + Topo Sort | LC 802 - Part 139 [Hindi]
19:57DSA Python - Eventual Safe States | Detect Terminal Nodes | LC 802 Explained - Part 140 [Hindi]
18:54DSA in Python Course - Alien Dictionary | Topological Sort in Graph | GFG | Part 141 [Hindi]
7:30DSA in Python - Shortest Path in Undirected Graph with Unit Distance | BFS | GFG | Part 142 [Hindi]
16:06DSA in Python - Shortest Path in Directed Weighted Graph (DAG) | Topological Sort | GFG | Part 143
28:58DSA in Python Course - Dijkstra’s Algorithm Using Priority Queue | GFG | Graphs Part 144
22:27DSA in Python- Dijkstra’s Algorithm Using Set | Why Priority Queue is Better | Graphs Part 145
17:23DSA Python 2025 - Why Use Priority Queue and not Queue in Dijkstra’s Algorithm? | Part 146
16:30DSA in Python - Print Shortest Path Using Dijkstra | Path Reconstruction | Graphs - Part 147 [Hindi]
21:31DSA Python - Shortest Path in Binary Matrix | Leetcode 1091 | BFS Grid Traversal - Part 148 [Hindi]
22:23DSA in Python - Path With Minimum Effort | Leetcode 1631 Explained | Dijkstra on Grids - Part 149
21:56DSA in Python - Cheapest Flights Within K Stops | Leetcode 787 | Modified BFS | Part 150 [Hindi]
25:26DSA in Python - Minimum Multiplications to Reach End | GFG Problem Explained | Part 151 [Hindi]
14:35DSA in Python - Number of Ways to Arrive at Destination | Dijkstra | LC 1976 | Part 152 [Hindi]
26:49DSA in Python - Bellman-Ford Algorithm | Detect Negative Cycles | GFG Problem | Part 153 [Hindi]
25:53DSA in Python - Floyd Warshall Algorithm | All-Pairs Shortest Path | GFG Problem | Part 154 [Hindi]
30:16DSA in Python - Smallest City with Threshold Neighbors | Leetcode 1334 | Floyd Warshall | Part 155
14:13DSA in Python - What is Minimum Spanning Tree (MST)? | Theory Only | GFG MST | Part 156 [Hindi]
7:03DSA in Python - Prim’s Algorithm | Minimum Spanning Tree (MST) | GFG | Part 157 [Hindi]
19:09DSA in Python - Disjoint Set (Union-Find) | Path Compression + Union by Size/Rank | Part 158 [Hindi]
44:37DSA in Python - Minimum Spanning Tree Using Kruskal’s Algorithm | GFG MST | Part 159 [Hindi]
16:10DSA in Python - Number of Provinces Using Disjoint Set (Union-Find) | GFG Graph | Part 160 [Hindi]
10:31DSA in Python - Make Network Connected Using Disjoint Set | LeetCode 1319 | Part 161 [Hindi]
18:34DSA in Python Course - Introduction to Binary Search Tree | BST Explained | Part 168 [Hindi]
7:37DSA in Python Course - Search in a Binary Search Tree | LeetCode Easy | Part 169 [Hindi]
6:57DSA in Python Course - Minimum Element in BST | GFG Practice | Part 170 [Hindi]
5:35DSA in Python Course - Ceil in BST | Find Ceiling Value in Binary Search Tree | GFG | Part 171
10:33DSA in Python Course - Floor in BST | Find Floor Value in Binary Search Tree | Part 172 [Hindi]
5:08DSA in Python Course - Insert into a Binary Search Tree | LeetCode Medium | Part 173 [Hindi]
7:48DSA in Python Course - Delete Node in a BST | LeetCode Medium | Part 174 [Hindi]
14:10DSA in Python Course - Morris Algorithm for Inorder/Preorder Traversal | Space Optimized | Part 175
21:40DSA in Python Course - Kth Smallest Element in a BST | Morris Algorithm | LeetCode Medium | Part 176
10:39DSA in Python Course - Validate Binary Search Tree | Range Validation | LeetCode Medium | Part 177
12:25DSA in Python Course - Lowest Common Ancestor of a Binary Search Tree | LeetCode Medium | Part 178
19:20DSA in Python Course - Predecessor and Successor in BST | GFG Practice | Part 179 [Hindi]
11:55DSA in Python - Introduction to Priority Queues using Binary Heaps | Min & Max Heaps | Part 180
22:35DSA in Python Course - Heapify Algorithm Explained | Building Heaps Efficiently | Part 181 [Hindi]
22:26DSA in Python Course - Implement Min Heap | From Scratch with Code | Part 183 [Hindi]
13:00DSA in Python Course - Implement Max Heap | From Scratch with Code | Part 184 [Hindi]
7:07DSA in Python Course - Check if an Array Represents a Min Heap | Validation Explained | Part 185
7:27DSA in Python Course - Build Heap from a Given Array | Heap Construction Explained | Part 182
15:22DSA in Python Course - Convert Min Heap to Max Heap | Efficient Transformation | Part 186 [Hindi]
2:20DSA in Python Course - Heap Sort Algorithm | Sorting using Max Heap | Part 187 [Hindi]
16:19DSA in Python Course - Kth Largest Element in an Array | QuickSelect Algorithm | Part 188
38:29DSA in Python Course - Kth Largest Element in a Stream | Min Heap Design | Medium | Part 189
9:27Introduction to Dynamic Programming | Recursion, Memoization, Tabulation | Part 190 | DSA in Python
37:59Climbing Stairs | All 4 DP Approaches | Recursion to Optimal | Part 191 | DSA in Python Course
11:10DSA in Python - Frog Jump | All 4 DP Approaches | Recursion to Optimal | GFG Practice | Part 192
35:09DSA in Python - House Robber II | 4 DP Approaches | Circular Constraint | LeetCode Medium | Part 194
11:03DSA in Python - House Robber | All 4 DP Approaches | Recursion to Optimal | LC Medium | Part 193
29:40DSA in Python - Geek's Training | 2D DP on Activities | GFG Practice | Part 195 [Hindi]
50:42DSA in Python - Unique Paths II | Grid DP with Obstacles | LeetCode 63 | Part 197 [Hindi]
9:36DSA in Python - Unique Paths | 4 DP Approaches | LeetCode 62 | Part 196 [Hindi]
43:44DSA in Python - Minimum Path Sum | 4 Grid DP Approaches | LeetCode 64 | Part 198 [Hindi]
23:17DSA in Python - Minimum Path Sum in Triangular Grid | 4 DP Approaches | LeetCode 120 | Part 199
32:16DSA in Python - Minimum/Maximum Falling Path Sum | Grid DP Full Approaches | LeetCode 931 | Part 200
34:41DSA in Python - Cherry Pickup II | 3D DP for 2 Robots | LeetCode 1463 | Part 201 [Hindi]
37:32DSA in Python - Partition Equal Subset Sum | 1D DP on Subsequences | LeetCode 416 | Part 203 [Hindi]
6:20DSA in Python - Subset Sum Equal to Target | Pick/Not-Pick DP | GFG Practice | Part 202 [Hindi]
35:40DSA in Python - Partition Set Into 2 Subsets with Min Absolute Sum Difference | GFG | Part 204
21:19DSA in Python - Count Subsets with Sum K | Perfect Sum Problem | GFG Practice | Part 205
36:30DSA in Python - Count Partitions with Given Difference | Reduce to Subset Sum | GFG | Part 206
8:47DSA in Python - 0/1 Knapsack | 5 DP Approaches + Space-Optimized Tricks | GFG Practice | Part 207
37:41DSA in Python - Longest Common Subsequence (LCS) | 5 DP Variations + Space Optimization | Part 208
53:59DSA in Python - Print the Longest Common Subsequence | Build DP Table + Backtrack | Part 209 [Hindi]
18:58DSA in Python - Longest Common Substring | DP on Strings (Tabulation + Space Opt) | Part 210 [Hindi]
14:29DSA in Python - Longest Palindromic Subsequence (LPS) | LCS Trick + DP Variations | Part 211 [Hindi
9:19Minimum Insertion Steps to Make a String Palindrome | LPS Trick + Interval DP | Part 212 [Hindi]
11:43DSA in Python - Delete Operation for Two Strings | LCS-Based DP + Space Opt | Part 213 [Hindi]
9:31DSA in Python - Best Time to Buy and Sell Stock II | DP Intuition | LeetCode 122 | Part 214 [Hindi]
37:46DSA in Python - Best Time to Buy and Sell Stock III | At-Most Two Trades DP | Part 215 [Hindi]
32:32DSA in Python - Best Time to Buy and Sell Stock IV | At-Most K Trades DP (O(n·k)) | Part 216 [Hindi]
5:26DSA in Python - Remove Outermost Parentheses | Depth Counter Trick (O(n)) | Part 217 [Hindi]
11:46DSA in Python - Reverse Words in a String | Clean Split-Reverse-Join (O(n)) | Part 218 [Hindi]
7:44DSA in Python - Largest Odd Number in String | Greedy Right-to-Left Scan (O(n)) | Part 219 [Hindi]
6:55DSA in Python - Longest Common Prefix | Vertical Scan + Alternatives (O(N·M)) | Part 220 [Hindi]
17:12DSA in Python - Isomorphic Strings | Bidirectional Hash Maps (O(n)) | Part 221 [Hindi]
15:50DSA in Python - Rotate String | s+s Substring Trick (O(n)) | Part 222 [Hindi]
13:21DSA in Python - Valid Anagram | Hash Map vs Sorting (O(n) vs O(n log n)) | Part 223 [Hindi]
15:18Sort Characters By Frequency | Hash Map + Sort/Heap (O(n + k log k)) | Part 224 [Hindi]
11:32DSA in Python - Maximum Nesting Depth of the Parentheses | Depth Counter | Part 225 [Hindi]
10:21DSA in Python - Roman to Integer | Mapping + Subtraction Rule | LeetCode 13 | Part 226 [Hindi]
12:33DSA in Python - Implement Trie (Prefix Tree) | Insert, Search, startsWith | Part 227 [Hindi]
32:59DSA in Python - Implement Trie II | Insert, Count, and Erase Operations | Part 228 [Hindi]
20:57DSA in Python - Complete String | Trie Based Prefix Checking | Part 229 [Hindi]
22:08DSA in Python - Count Distinct Substrings | Brute Force vs Trie Approach | Naukri Code360 | Part 230
13:09YouTube is built for entertainment and infinite recommendations. SyncStudy transforms playlists into distraction-free study environments.
No comments section, no recommended sidebar rabbit holes, and no algorithmic rabbit holes pulling you off task.
Write notes that link directly to video timestamps. Click any note anytime to jump straight to that exact explanation.
Mark lectures as complete with one click. Maintain daily streaks and always resume right where you left off.
Ask concept questions to the 24/7 AI tutor and generate chapter-wise practice quizzes directly from video transcripts.
Continue your study path with these recommended courses.
Common questions about studying this course on SyncStudy.
Yes! SyncStudy allows you to convert public YouTube playlists into structured courses and track your progress 100% free with no credit card required.
Every time you finish a lecture, you can mark it complete with one click. Your progress percentage, completed minutes, and streak are updated in real-time across all your devices.
Yes. SyncStudy features built-in timestamped notes. While watching a video, simply type your notes and click save — your notes will link directly to that exact second in the lecture.
SyncStudy automatically monitors the playlist and lets you refresh your syllabus with one click whenever the creator uploads new videos.
Stop getting distracted on YouTube. Start your personalized study schedule and track all 230 lessons today.
