CCC '11 J1 - Which Alien?

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Points: 3
Time limit: 2.0s
Memory limit: 64M

Problem type
Canadian Computing Competition: 2011 Stage 1, Junior #1

Canada Cosmos Control has received a report of another incident. They believe that an alien has illegally entered our space. A person who witnessed the appearance of the alien has come forward to describe the alien's appearance. It is your role within the CCC to determine which alien has arrived. There are only 3 alien species that we are aware of, described below:

  • TroyMartian, who has at least 3 antennae and at most 4 eyes;
  • VladSaturnian, who has at most 6 antennae and at least 2 eyes;
  • GraemeMercurian, who has at most 2 antennae and at most 3 eyes.

Input Specification

The user will be prompted to enter two numbers. First, the user will be prompted to enter the number of antennae that the witness claimed to have seen on the alien. Second, the user will be prompted to enter the number of eyes seen on the alien.

Output Specification

The output will be the list of aliens who match the possible description given by the witness. If no aliens match the description, there is no output.

Sample Input 1


Output for Sample Input 1


Sample Input 2


Output for Sample Input 2


Sample Input 3


Output for Sample Input 3


  • 13
    Mr_Lim  commented on March 28, 2018, 10:08 a.m.

    "The user will be prompted to enter two numbers."

    Minor point: there is no prompting required for this question. Can we remove references to prompting? This is a popular question for my younger students, and the super-diligent ones prompt the user, much to their dismay...

    • -4
      Roynaruto  commented on March 28, 2018, 4:11 p.m.

      The reason the input specification has prompts is because of this. (Scroll down to J1)

  • 15
    weiseng  commented on Dec. 16, 2016, 7:09 a.m.

    The order of output has to be always TroyMartian then VladSaturnian then GraemeMercurian, but it is not stated

    • -5
      Kirito  commented on Dec. 16, 2016, 8:33 a.m.

      This comment is hidden due to too much negative feedback. Click here to view it.

  • -4
    Luffa5  commented on Nov. 22, 2016, 8:03 a.m.

    How do I make the computer read multiple if statements and then print every statement that is true, because right now the computer just prints the first one that's true.

    • 12
      yodasnow  commented on Nov. 30, 2016, 1:05 p.m.

      Just use multiple if's so don't use elif statements. Hope this helps.