What is difference between tree and forest?
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Does list maintain insertion order?
What is map keyset?
What is the difference between 1d and 2d array?
What is top in stack?
What is subtree?
What is the difference between the hash table and hash map?
Which sorting is stable?
I am given a sequential algorithm that does a routine search on an unordered list. N = 20. The probability that the value x does NOT appear in the list is exactly 60%, and the probability that x DOES appear is 40%. The 3 questions that I could not get were: A) What is the avg number of element comparisons performed when n = 20 and x does NOT appear in the List. (my answer was 20, is this correct?) B) What is the avg number of element comparisons peformed when n = 20 and x DOES appear in the list? C) What is the avg number of element comparisons performed when n = 20. This should be a single number answer they said.
What is difference between hashmap and treemap?
Define disjoint set adt?
Which time complexity is best?
Can we extend an array after initialization?