CCC '00 J3 - Slot Machines

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Points: 5
Time limit: 2.0s
Memory limit: 16M

Problem type

Canadian Computing Competition: 2000 Stage 1, Junior #3, Senior #1

Martha takes a jar of quarters to the casino with the intention of becoming rich. She plays three machines in turn. Unknown to her, the machines are entirely predictable. Each play costs one quarter. The first machine pays 30 quarters every 35^{th} time it is played; the second machine pays 60 quarters every 100^{th} time it is played; the third pays 9 quarters every 10^{th} time it is played.

Input Specification

Your program should take as input the number of quarters in Martha's jar (there will be at least one and fewer than 1000), and the number of times each machine has been played since it last paid.

Output Specification

Your program should output the number of times Martha plays until she goes broke.

Sample Input


Sample Output

Martha plays 66 times before going broke.


  • 0
    1015449  commented on April 5, 2018, 8:45 a.m.

    My code works and I feel like it should be fast enough but the 5th test is still running too slow, any suggestions to make it faster

  • 0
    JJ_G4M3R  commented on Nov. 26, 2017, 6:34 p.m. edit 5

    I keep getting 0 on 2000 questions. Even though I tested my code before I submit, the output starts cutting off every time. Why is this happening?

    Example) This is what my clipped output looks like:

    How many quarters does Martha have in the jar? How many times ha

    • 1
      Xyene  commented on Nov. 26, 2017, 6:43 p.m.

      Your output (clipped)

      ...implies your output will be clipped when displayed on the site, specifically to 64 characters.

      • 0
        JJ_G4M3R  commented on Nov. 26, 2017, 6:53 p.m.

        What am I getting wrong in the questions then?

        • 1
          aeternalis1  commented on Nov. 26, 2017, 6:57 p.m.

          The judge looks for exact matching output, and so you should remove or comment out input prompts. Follow the output specification.

          • 0
            JJ_G4M3R  commented on Nov. 26, 2017, 7:08 p.m.

            Okay, thank you. I was doing it to Waterloo's formatting.

  • 2
    CarlZCoc  commented on July 16, 2017, 9:13 p.m.

    I think my code is good, but the second test run isn't working. My code outputs 38? Does anyone else have a similar problem

    • 1
      Dordor1218  commented on Feb. 4, 2018, 6:15 p.m.

      I feel like my program is good but the last test run is wrong?

    • 0
      wleung_bvg  commented on July 16, 2017, 9:30 p.m.

      You rotate the machine immediately so the 2nd machine is the machine Martha goes to at the start. Instead, you should rotate the machine after the first round so that the 1st machine is the machine Martha goes to at the start.

      • 3
        nikos  commented on Sept. 29, 2017, 7:21 p.m.

        What do you mean "rotate"?