July 2018
Beginner
202 pages
5h 4m
English
Content preview from Beginning Java Data Structures and Algorithms
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Solving the Activity Selection Problem
To implement the greedy algorithm in Java to solve the activity selection problem, as described previously.
A possible implementation of the algorithm described to solve the activity selection problem is as follows:
Collections.sort(sortedActivities, (o1, o2) -> Integer.signum(o1.finish - o2.finish));if (sortedActivities.size() > 0) selected.add(sortedActivities.get(0));for (int i = 1; i < sortedActivities.size(); i++) if (sortedActivities.get(i).start >= selected.get(selected.size() - 1).finish) selected.add(sortedActivities.get(i));
Navigate to https://goo.gl/xYT2Ho to access complete code.
After having sorted the activities by finish time, the selection part of the algorithm runs in O(n) time. Since ...
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