Given an array where every element appears twice except for two elements that appear once, find those two elements.
You must achieve time and space (excluding input).
Example: For [1,2,1,3,2,5], return [3, 5].
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Given an array where every element appears twice except for two elements that appear once, find those two elements.
You must achieve time and space (excluding input).
Example: For [1,2,1,3,2,5], return [3, 5].