Question: 4. (25 Points) Use the greedy algorithm below to solve the activity problem. Suppose the S tai,a,., an is a set of n activities that

4. (25 Points) Use the greedy algorithm below to solve the activity problem. Suppose the S tai,a,., an is a set of n activities that wish to use the resource. Each activity a, has a start time s, and a finish time fi, where Activities a, and a, are called compatible if the one starts after the other is finished. It is about to select the maximum-size subset of mutually compatible activities. Solve this problem of activity- selection problem. Is this optimal solution? What is the optimal solution? How can you improve it? The greedy algorithm GREEDY-ACTIVITY-SELECTOR(s.f) 2 10 11 12tal = s.length 4 8 return A

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