Codechef acting weirdly during the first few minutes of August Cookoff

I submitted three solutions to the problem Chef and Work (CHEFNWRK) during the first few minutes of the contest. All the three submissions were same but due to some strange reason the first two exceeded the time limit. The third submission took 0.06 seconds. This has occurred to me once before as I thought of reporting it this time.
You can check my three submissions at

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I saw another post same issue. @admin it occurred due to huge load on server maybe. but they should be rejudged at least afterwards.