Sourin Majumdar

502. IPO - JAVA (Two heaps - Detailed explanation + coding)

2593. Find Score of an Array After Marking All Elements - JAVA (Biweekly Contest 100)

912. Sort an Array - JAVA (Min Heap / Merge sort / Counting sort - Detailed explanation + Coding)

28. Find the Index of the First Occurrence in a String - JAVA

2587. Rearrange Array to Maximize Prefix Score - JAVA (Weekly Contest 336)

2390. Removing Stars From a String - JAVA (Stack + StringBuilder - Detailed explanation)

881. Boats to Save People - JAVA (Sorting + Greedy - Detailed explanation)

704. Binary Search - JAVA (Detailed explanation + coding)

2492. Minimum Score of a Path Between Two Cities - JAVA (DFS / BFS on Graph - Detailed explanation)

2586. Count the Number of Vowel Strings in Range - JAVA (Weekly Contest 336)

208. Implement Trie (Prefix Tree) - JAVA (Detailed explanation)

605. Can Place Flowers - JAVA (Greedy - Detailed explanation)

2348. Number of Zero-Filled Subarrays - JAVA (Math - Detailed explanation)

1472. Design Browser History - JAVA (Doubly Linked List - Detailed explanation)

23. Merge k Sorted Lists - JAVA (Heap / Merge 2 sorted lists - Detailed explanation)

101. Symmetric Tree - JAVA (Iterative / Recursive - Detailed explanation)

2596. Check Knight Tour Configuration - JAVA (Weekly Contest 337)

2588. Count the Number of Beautiful Subarrays - JAVA (Weekly Contest 336)

2595. Number of Even and Odd Bits - JAVA (Weekly Contest 337)

129. Sum Root to Leaf Numbers - JAVA (BFS / DFS - Detailed explanation)

502. IPO - JAVA (Two heaps - Detailed explanation + coding)

1254. Number of Closed Islands - JAVA (DFS - Detailed explanation)

2. Add Two Numbers - JAVA (Linked Lists - Detailed explanation + live coding)

958. Check Completeness of a Binary Tree - JAVA (BFS - Detailed explanation)

106. Construct Binary Tree from Inorder and Postorder Traversal - JAVA (Detailed explanation)

1523. Count Odd Numbers in an Interval Range - JAVA (Naive and Optimal solutions)

443. String Compression - JAVA (Detailed explanation + Coding)

415. Add Strings - JAVA (Explanation + Live coding)

1020. Number of Enclaves - JAVA (DFS - Detailed explanation)