UGC-NET | UGC NET CS 2015 Dec – III | Question 16

In Activity – Selection problem, each activity i has a start time s_i and a finish time f_i where s_i ≤ f_i. Activities i and j are compatible if:

(A) s_i ≥ f_j
(B) s_j ≥ f_i
(C) s_i ≥ f_j or s_j ≥ f_i
(D) s_i ≥ f_j and s_j ≥ f_i or


Answer: (C)

Explanation: Two activities are compatible if their starting time and finish time does not overlap i.e. their execution must not overlap and starting time of one process must be greater then or equal to second process.
i.e. s_i ≥ f_j or s_j ≥ f_i.
So, option (C) is correct.

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