Write a function to remove repeated spaces from a string (ex: "one two three four" -> "one two three four")
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Given a list of coins and the a total amount. Calculate the minimum number of coins can be used to reach the total amount.
Examples of teamwork etc. general questions like that
Give 2 coding solutions on returning an array by removing duplicates. One solution with O(n^2) and the other Linear.
Given an array whose elements are sorted, return the index of a the first occurrence of a specific integer. Do this in sub-linear time. I.e. do not just go through each element searching for that element.
Write a function in C/C++ that returns the number of zeros contained in the factorial of the number that is passed to it.
print out the powset of a set. use any programming language you want.
Write a function that will return the second longest string in a list of strings. You have to do a single pass on the list.
How to add a counter to www.google.com to track the billionth user.
Find the lowest common ancestor for BST
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