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I Tried to Learn DSA in 48 Hours I spent 48 hours straight grinding Data Structures and Algorithms (DSA) as a complete challenge ...

https://leetcode.com/problems/missing-number/ Skip the extra array and the hash set — this one's pure math. LindorCodes breaks ...

https://leetcode.com/problems/smallest-index-with-digit-sum-equal-to-index/ A Google interview question that looks simple until ...

In this video, we tackle LeetCode 1658 Minimum Operations to Reduce X to Zero. Instead of using a slow brute-force method from ...

https://leetcode.com/problems/find-if-path-exists-in-graph/ Graphs trip up more engineers in interviews than almost any other topic ...

Preparing for upcoming College Campus Placements, Off-Campus Drives, or FAANG & Top Tech OAs (Google, Amazon, ...

https://leetcode.com/problems/remove-duplicates-from-sorted-list/ Pointers trip up more engineers than any other DSA topic — this ...

https://leetcode.com/problems/second-minimum-node-in-a-binary-tree/ Given a special binary tree, find the second minimum ...

Preparing for upcoming College Campus Placements, Off-Campus Drives, or FAANG & Top Tech OAs (Google, Amazon, ...

Preparing for upcoming College Campus Placements, Off-Campus Drives, or FAANG & Top Tech OAs (Google, Amazon, ...

https://leetcode.com/problems/binary-tree-inorder-traversal/ Recursion clicks when you actually see the call stack move. This is ...

https://leetcode.com/problems/binary-tree-postorder-traversal/ Postorder traversal isn't hard — until you have to trace the call stack ...