Question: 1. On the Summary worksheet, in cell A16, insert the TODAY function. Format the date with the March 14, 2012 date format. 2. Given an
2. Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? Example: Input : [1 2 2 3 1] Output : 3
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