Los_Angelos_Laycurse's blog

admins,I think data case of problem gym 100491 F Formula Verification is incorrect
By Los_Angelos_Laycurse, history, 9 years ago, In English

http://mirror.codeforces.com/gym/100491

i have code two totally different approaches and both of them wa on test case 13.... this is a very easy problem but nobody get accepted, I think data case is wrong....

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9 years ago, # |
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I looked at the 13th test case using the coach mode. Your answer is wrong.

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    9 years ago, # ^ |
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    Hi,can you send me test 13th to my email 441766573@qq.com so many thanks..

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      9 years ago, # ^ |
      ← Rev. 2   Vote: I like it 0 Vote: I do not like it

      In Rev. 1

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        9 years ago, # ^ |
        ← Rev. 3   Vote: I like it 0 Vote: I do not like it

        could you send me test case 18,maybe judges got wrong?

        for test case 13, I mistake in deal with formula string, I have correct it, but got WA on test 18, seems there is no bug in my code now....

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          9 years ago, # ^ |
            Vote: I like it +33 Vote: I do not like it

          7 months looking for a bug :) ?

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            9 years ago, # ^ |
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            7 months ago ,I have no idea about what is In Rev. 1

            7 months later , I suddenly understand and find

            ExEy x*x+y*y=0-1 In Rev. 1,

            I got wrong in this expected is false I received true,

            this bug is easy to correct..

            but what is test case 18..

            I still doubt the correctness of judge,becase this is

            very easy problem but 0 AC....

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              9 years ago, # ^ |
              ← Rev. 2   Vote: I like it +38 Vote: I do not like it

              You are wrong again.. Test is in rev1

              Good luck finding the bug in the next 7 months :D

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                9 years ago, # ^ |
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                9 years ago, # ^ |
                  Vote: I like it +3 Vote: I do not like it

                Thank you for your test data, I get Accepted

                I think the most hard part of this problem is to deal with string, not compute....

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