In the hitting set problem, we are given a family of finite integer sets {s1, s2, . . , sn} and a budget b, and we wish to find an integer set h of size ≤ b which intersects every si , if such an h exists. in other words, we want h ∩ si 6= ∅ for all i. show that the hitting set problem is np-complete

What is the most popular genre of video games?

Visually impaired individuals generally rely on the for navigation. thus, designers need to ensure that mouse-specific inputs, such as pointing, clicking, and hovering, can be done without a mouse.

How is a wan different than a lan? both connect computers, but only wan users don’t need the same operating system. both are peer-to-peer networks, but only a wan requires networking hardware. both network computers, but only a wan can cover larger geographical ranges. both connect computers to the internet, but only wan connects to the cloud.