Alright, it's time for some programming trick questions
What's the fastest way to sort a jumbled array containing the integers 1 to N?
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Answer: just repopulate the array with new integers from 1 to N. Running time is O(N)
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What's the fastest way to test whether a 32-bit integer is a perfect number?
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for i in range(n): array[i] = i + 1
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make a new array and fill it with a for loop
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