Answer given is Option A , but here we wil first sort the jobs in order of profit , for each value of deadline scan linearly in the array depending on the value of deadline , so it should take O(n^2) in worst case .
@Manas Mishra
https://ocw.mit.edu/courses/civil-and-environmental-engineering/1-204-computer-algorithms-in-systems-engineering-spring-2010/lecture-notes/MIT1_204S10_lec10.pdf
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