C++ Solution | Count Square-Free Subsets of an Array | Dynamic Programming & Bitmask

Learn how to solve the Square-Free Subsets problem in C++ efficiently using dynamic programming with bitmasking.

In this problem, a subset of an array is considered square-free if the product of its elements has no square factors other than 1. We calculate the number of different square-free non-empty subsets modulo 10⁹+7.

This tutorial covers:

Precomputing prime factors using bitmasking

Handling numbers with square factors

Efficient DP approach for subsets

Including 1s in subsets without breaking square-free conditions

💡 Example:
Input: nums = [3,4,4,5]
Output: 3

Input: nums = [1]
Output: 1
Watch now and master advanced C++ DP techniques for combinatorial problems!
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Видео C++ Solution | Count Square-Free Subsets of an Array | Dynamic Programming & Bitmask канала Coding theory