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Apply Operations to Maximize Score

Remove All Occurrences of a Substring

Clear Digits

Check if a Parentheses String Can Be Valid

January 12, 2025 · 8 min ·  Tags List of tags for the post   greedy ·  leetcode ·  stack ·  string ·  Last updated: Aug 2, 2025

Implement 3 stacks in 1 list

January 8, 2025 · 3 min ·  Tags List of tags for the post   daily-coding-problem ·  Last updated: Aug 2, 2025

Final Prices With a Special Discount in a Shop

Construct Binary Search Tree BST from Preorder Traversal

Maximum Binary Tree

Verify Preorder Serialization of a Binary Tree

Beautiful Towers II

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