StlenHandle's blog

Codeforces magic!
By StlenHandle, history, 7 years ago, In English

Hello Codeforces !

I can't do this problem. So I copy solution. And I submitted code with some changes, But it get TLE. I submit code without any changes, It get AC. And I delete only commentes in first submission.

First subm.

Second sumb.

And one question. Why?

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7 years ago, # |
  Vote: I like it +28 Vote: I do not like it

It is not a magic . Submission time varies often a few ms .. Your second solution too just got lucky and had time of 2995 ms for a time limit of 3000ms and just passed .. .. If you try again submitting same code ,you may get TLE again

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    7 years ago, # ^ |
      Vote: I like it -10 Vote: I do not like it

    I submitted 6 same codes, All get AC.

    1 — 32900249

    2 — 32900259

    3 — 32900265

    4 — 32900269

    5 — 32900282

    6 — 32900287

    Is it still luck?

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      7 years ago, # ^ |
      ← Rev. 2   Vote: I like it +3 Vote: I do not like it

      Yes ,As far as I have seen you have almost submitted the same code 12 times with minor changes here and there(putting gaps etc ) . You got 3 TLEs and 9 Accepted .Besides that, The 9 Accepted are lingering around 3000 ms (2800-2950ms).

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7 years ago, # |
  Vote: I like it +6 Vote: I do not like it

Look at the execution time of the second submission! 2995ms => this submission only barely got accepted.

A program will not execute with the same speed each time you call it. The execution time depends on a lot of variables, like the current load of the machine, the current clock frequency, current RAM/ROM usage, ...

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