Can treeset have duplicates?
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Is hashtable fail fast?
what are the applications of Linked Lists?
Explain the difference between hashset and hashmap?
What is data structure and data type?
When would you use a hashmap?
What is structured data with example?
an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].
What does the dummy header in linked list contain?
Is hashmap get thread safe?
Is quicksort a stable sorting algorithm?
Can we store a string and integer together in an array?
What is impact of signed numbers on the memory?