I tried to solve the following to problem\n[Parallel Courses II](https://leetcode.com/problems/parallel-courses-ii/)\n\nbut failed to do so. I got to know that the problem is related to **bitmask+DP**+graphs. I never did a problem based on bitmask+Dp. Can anyone suggest or list few good problems or learning resources to learn about it? Thanks!

I tried to solve the following to problem\nParallel Courses II\n\nbut failed to do so. I got to know that the problem is related to bitmask+DP+graphs. I never d