Big O is always extremely relevant. - A lot of the typical algorithms in djikstra, merge sort etc. are not important to know by heart, but they represent import

Big O is always extremely relevant. - A lot of the typical algorithms in djikstra, merge sort etc. are not important to know by heart, but they represent important concepts to know to solve complex problems. Divide and Conquer and Greedy or topics that come up implicitly at least once a week, usually more often.