Write an algorithm to see if a tree is a BST.
Desarrollador Big Data Interview Questions
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How would you find the pairs of numbers that added to some specific number in an array.
Find all anagrams in a file. Improve the running time to O(n).
Having an infinite supply of water and two containers, one for 3 liters and one for 5 liters, how would you measure 4 liters?
In your opinion, what is our company's single most important metric?
How do you remove duplicates from an array of integers?
Puzzle: There are 25 horses and 5 lanes for conducting a race among them. In a minimum of how many races, would be able to find out the 3 fastest horses among them? Assumption: Speed of horses are consistent enough across races.
Another was a puzzle: A king orders 100 bottles of wine for a celebration. A courtier who's angry with the king over something puts poison in one of those bottles. The king has a way of identifying the poisoned bottle by giving a few drops of wine to a monkey. Since the poison is fast acting, the monkey will die immediately. Whats the minimum number of monkeys needed to find the poisoned bottle?
Question Description: Write a function that, given a list of integers (both positive and negative) returns the sum of the contiguous subsequence with maximum sum. Thus, given the sequence (1, 2, -4, 1, 3, -2, 3, -1) it should return 5.
Write a program that given 4 coin denominations and a dollar amount finds the best way to express that amount using the coins given. I.e. you have coins with denominations of 1c, 7c, 13c,19c and you have to express $2.12 with the least number of coins. There is always a 1c coin but the other 3 are arbitrary.
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