Longest Uncommon Subsequence I
@SYSU---yyx Me too.....By the way, shuang ya shan da xue?
@compton_scatter oh,we are the same:
@StefanPochmann Thx, I make the same little bug everytime.
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1 line is enough :p
Your solution has a room to improve for handling large test cases.
Comparing the two long strings is quite expensive work, so you will want to avoid it as possible.
We don't need to do the string comparison if the two strings has different size, which should be the majority of the use cases.
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