In this video, I walk through the solution to the Codeforces problem “577A – Multiplication Table”, explaining the intuition and implementation step by step using C++.
We break down the problem, analyze how values appear in a multiplication table, and use mathematical observations to efficiently count valid entries without generating the entire table. This problem is a great example of how number theory and optimization help avoid unnecessary computation.
I’m still learning and improving, so if you know a cleaner approach, a more optimal solution, or have tips for solving similar math-based problems, I’d love to hear your feedback in the comments!
📌 Language Used: C++
📌 Difficulty: Beginner–Intermediate
📌 Topic: Math / Counting
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