DSA Prep Track
Solve 20 problems covering Arrays, Strings, and Stacks for placement prep.
Best Time to Buy and Sell Stock
Difficulty: Easy
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Container With Most Water
Difficulty: Medium
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Merge Two Sorted Lists
Difficulty: Easy
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Find Missing Number
Difficulty: Easy
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Remove Duplicates from Sorted List
Difficulty: Easy
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Binary Tree Inorder Traversal
Difficulty: Easy
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Binary Tree Level Order Traversal
Difficulty: Medium
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Flatten Binary Tree to Linked List
Difficulty: Medium
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Queue Using Stacks
Difficulty: Hard
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Implement Queue using Stacks
Difficulty: Easy
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Implement Stack using Queues
Difficulty: Easy
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Maximum Depth of Binary Tree
Difficulty: Easy
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