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756 Number of Smooth Descent Periods of a Stock | Leetcode POTD | GFG Solutions | 15-12-2025 Problem Statement ...

Doing DSA matters — not the language you use! Whether it's Java, Python, C++, or JavaScript, the language is just a tool.

"Surrounded Regions," involves transforming 'O's surrounded by 'X's in a 2D board into 'X's. The idea is to mark regions of 'O's ...