How do you remove duplicates in a large array.
Data Engineering Interview Questions
56,367 data engineering interview questions shared by candidates
Count the number of bits set in an integer. What is your favorite language and what you don't like about that language.
Write a function that makes a deep copy of a linked list that, besides having a pointer to the next node, also has a pointer to a random node in the list.
Q: Distinct ways of selecting a team. (PnC problem) Q: DP problem to find the total subsequences in a large string given a smaller string.
Isomorphic trees
Given a telephone number, find all the permutations of the letters assuming 1=abc, 2=def, etc.
add two numbers represented by strings
Reverse a link list.
Given a mapping of the english alphabet to numbers (i.e. a = 1, b = 2, k = 11) and a string of numbers (i.e. "110124"), determine the number of representations that the string may have in letters.
Write a function where, given an index, you return the Fibonacci number at that index.
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