Axial-Tilted's blog

wrong solution passes
By Axial-Tilted, history, 3 hours ago, In English

i was too sleepy and decided to quickly solve a problem before sleeping so i submitted a quick code for this problem

https://mirror.codeforces.com/problemset/problem/1132/E

even tho my code is wrong it still passes all 90 tests but while i was trying to prove my solution i realized it was wrong and here is a counter example

889

0 0 0 0 0 0 120 105

here the the answer is 889 but my code outputs 888

271074483

iam just curious how its even possible to pass 90 tests with a wrong code

UPD : the test has been added to the problem and now the submission shows WA on that test

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3 hours ago, # |
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3 hours ago, # |
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3 hours ago, # |
  Vote: I like it +4 Vote: I do not like it

waiting for the proof by AC meme

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3 hours ago, # |
← Rev. 2   Vote: I like it +6 Vote: I do not like it

[redacted]

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    3 hours ago, # ^ |
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    iam not sure what u mean but the test case is valid and it means that u have a bag of size 889 and 120 items of weight 7 and 105 items of weight 8

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79 minutes ago, # |
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How did u came up with that counter-example? I usually move on to another problem as soon as I get AC.

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    67 minutes ago, # ^ |
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    i was thinking what my solution even does and realized it doesnt do anything that makes sense

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51 minute(s) ago, # |
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I added this test into the problem

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51 minute(s) ago, # |
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same thing Here

Counter case
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    21 minute(s) ago, # ^ |
    ← Rev. 2   Vote: I like it +4 Vote: I do not like it

    Done! Sometimes I am amazed by the technologies of Codeforces: I opened a problem that was prepared 14 years ago. It opened in Polygon without any issues. I just added some tests to it and built the package. Everything was compiled and worked perfectly. Such backward compatibility over a span of 15 years is an excellent result!

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      18 minutes ago, # ^ |
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      thanks for such great platforms.

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41 minute(s) ago, # |
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