Universal Cup Judging System

Universal Cup

The 4th Universal Cup. Stage 26: Grand Prix of Guangdong

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Asker When Questions
ucup-team2401 2026-06-20 23:41:43
I am pretty sure there is something wrong with either test10 or how judge works, I apply random permutation before start, so all tests should have same chance of passing, but I had literally infinite submissions that passes tests 1-9 but cannot pass test 10, the chance of this actually happening is astronomically small.

回复:Sorry for the inconvenience. The interactor library works by first reading a random seed, and then randomizing the parts marked as '1' in each query. Different random seeds may make some test cases hard to pass, and it is a bit hard to avoid through shuffling.

대회 종료

규정: ICPC

  • Test full dataset
  • Scoreboard available
  • Penalty: 20 minute(s)
  • Submission limit / problem: 1000
  • Scoreboard will be frozen after 4:00:00

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