jqdai0815's blog

My sad story
By jqdai0815, history, 8 years ago, In English

When I was submitting the problem D in round #371, I clicked the "Choose File" button and selected my code.

Before the submission, I read my code another time, found a bug in my code and fixed it. And then I clicked the "submit" button.

But it turned out that my solution got wrong answer on pretest 4. I stress-tested my solution, and found it passed the big random data. I was really shocked. umm... Maybe my solution failed on some small testcases. So I tried many ways to generate testcases. But my solution was right on all the testcases I generated.

After struggling for about 40mins, I gave up and submitted it again. It passed all the pretests.

I compared two codes, and just found I submitted the old version (before fixing the bug) at first time.

After asking my roommate, he said when you clicked the "Choose File" button, it would upload the file instead of recording the path.

In the rest time of the contest, I tried to solve problem B and E but failed.

I think I should quit from algorithm contest like YuukaKazami and study harder.

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Comments Comments (40)
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8 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Auto comment: topic has been updated by jqdai0815 (previous revision, new revision, compare).

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8 years ago, # |
  Vote: I like it +296 Vote: I do not like it

TooEmotional

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8 years ago, # |
  Vote: I like it +24 Vote: I do not like it

"quit from algorithm contest like WJMZBMR"
Aren't you going to participate in ACM ICPC 2017 together?

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    8 years ago, # ^ |
      Vote: I like it +65 Vote: I do not like it

    It's time for my teammates to carry me.

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      8 years ago, # ^ |
        Vote: I like it -6 Vote: I do not like it

      I guess the mistake u made today, it actually isn't related to algorithmic contests at all. Maybe all you should do is be more careful. Lol

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8 years ago, # |
  Vote: I like it +14 Vote: I do not like it

I believe, that depends on browser. In Chrome-based browsers I'm 100% it is not true (because I do such thing sometimes and it never failed me). What browser are you using?

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

    Chrome... I think I also do such thing many times, and I thought the code I submitted is the new version definitely.

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      8 years ago, # ^ |
        Vote: I like it +116 Vote: I do not like it

      Maybe the problem was that you didn't actually save the new version of the code before submitting (i. e. it was only present in your editor buffer)?

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8 years ago, # |
  Vote: I like it -247 Vote: I do not like it

Nobody cares .

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8 years ago, # |
← Rev. 2   Vote: I like it +79 Vote: I do not like it

I remember that my teammates laughed at me on some acm-icpc training for rechoosing a file after changing code. After two years, it's so good to know that I was right to be careful.

And btw. it's always sad to mess a contest not because of problem-related reasons.

EDIT: I hope Zlobober isn't right in comments above...

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8 years ago, # |
  Vote: I like it 0 Vote: I do not like it

"I think I should quit from algorithm contest like WJMZBMR and study harder."

Isn't learning algorithms some sort of studying?

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8 years ago, # |
  Vote: I like it +32 Vote: I do not like it

Maybe you need a better sleep.

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8 years ago, # |
  Vote: I like it +122 Vote: I do not like it

Would this blog have got upvotes if the author was some Div2 guy ?

I mess up in contests too , should i cry and write about it everytime ?

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

    Messi missing an open goal and me missing an open goal has big difference. Isn't it?

    As far as I remember some high rated user(might be YuukaKazami) did not advance in Facebook hacker cup round because he submitted the solution of previous round. It's always good to know the type of mistake best sport programmers do.

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    8 years ago, # ^ |
    ← Rev. 2   Vote: I like it +37 Vote: I do not like it

    In fact that's a bit different situation. jqdai0815 told a case that raised a possibility of system being flawed. It turned out it was his simple mistake, but if it had turned out CF is flawed here it would have been useful to community. If that cheers you up, I also often complain about my stupid mistakes and I don't get upvotes for that kind of posts ^.^

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      8 years ago, # ^ |
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      I don't believe that Swistakk doesn't get upvotes for everything he posts :P

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      8 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      Writing a comment about wasting 40 mins on a problem and writing a blog are two different things.

      You are a serial poster of your views :) whereas jqdai0815 generally does not express his opinions. If you post once in blue moon about your bad experience then you'll get enough upvotes too.

      Having said that I think only three people in this community can get these many upvotes for a blog like this.

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    8 years ago, # ^ |
      Vote: I like it +15 Vote: I do not like it

    Who said the world was fair?

    But then again, he earned it. The importance to say something which everybody listens.

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

Try Xcode, it saves automatically every time:)

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8 years ago, # |
  Vote: I like it -27 Vote: I do not like it

多喝热水

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8 years ago, # |
← Rev. 2   Vote: I like it -6 Vote: I do not like it

"I think I should quit from algorithm contest like WJMZBMR and study harder."

If so, ACM ICPC 2017 would lose the strongest competitor.

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8 years ago, # |
  Vote: I like it +10 Vote: I do not like it

of course quit it! there are so many better things than giving contests! :D

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

The same happened to itu during the ACM Regional Contest in Latin America. When we realized what happened, we started to laugh. At the end, we didn't classify to the WF because of our penalty time and it was not time to laugh :(

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8 years ago, # |
  Vote: I like it +2 Vote: I do not like it

Just a small blog before today's storm :)

I think it was just TooSimple.

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8 years ago, # |
  Vote: I like it -15 Vote: I do not like it

crying is a way your eyes speak when your mouth can't explain how broken your heart is

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8 years ago, # |
← Rev. 3   Vote: I like it -10 Vote: I do not like it

salam

while(true is true)

{

(!lose) && (win || learn);

continue;

}

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