The code test, they give you 4 test case, which is regular format. But there is a button for additional 20 test case. They are hidden the content of test case. I always failed two of them. and didn't know why. So I cannot improve my code.

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xx · Accepted Answer

hmm  I've passed all test cases... spent some tome on debugging, and eventually passed all test cases!

Sigiloso · Answer

think your code with absolutely no bug at all.

Sigiloso · Answer

I just took their code test and I have found 2 out of the 4 test cases for Problem 2 were incorrect (if you go through their test cases manually you will find there are 2 test cases which are actually wrong). Unless you make same mistake as their test cases do, you will never pass all the test cases. I have a copy of the 4 test cases they give to candidates; I am not supposed to post them out I am afraid, otherwise everybody could take a look and confirm.

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