Which algorithm makes the most efficient use of memory, Operating System

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Question :

(a) The dynamic allocation problem is how to satisfy a request of size n from a list of free holes into memory. The best-fit, first-fit and worst-fit strategies are the most common methods used for selecting a free memory hole from a set of memory holes. Simply describe these 3 strategies.

(b) Given memory partitions of 100K, 500K, 200K, 300K and 600K (in order). How would each of the First-fit, Best-fit and Worst-fit  algorithms place processes of 212K, 417K, 112K and 426K (in order)?

(c) Which algorithm makes the most efficient use of memory?


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