Find the longest subsequence in a given array of numbers in O(n)
Developer Database Oracle Interview Questions
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How would you test if a binary tree were symmetrical and balanced.
unlimited supply of coins of different demoninations. pick min number of coins to get given amount.
How do you detect for the first repeated character in a string? How do you detect whether or not a word is a palindrome?
What is the fast sorting algorithm and why?
Write a function atoi in C, which takes a String as input, such as "123", and outputs an int, in this case 123.
Write a program that sees if two binary trees are equal.
Write a program that reverses the words in a sentence.
The 2-minutes part is a bit unexpected, I am not a native language speaker, I read a bit slow, so I can only finish about 60% percent of the questions.
Within 2-3 hours write a program that reads words from a large file, counts how many times an individual word occurs and output them in the order of decreasing number of occurrences. The language doesn't matter, just negotiate the programming environment you prefer in advance.
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