CCC '05 J5 - Bananas
View as PDFCanadian Computing Competition: 2005 Stage 1, Junior #5
The term "code monkey" is sometimes used to refer to a programmer who doesn't know much about programming. This is unfair to monkeys, because contrary to popular belief, monkeys are quite smart. They have just been misunderstood. This may be because monkeys do not speak English, but only monkey language. Your job is to help humans and monkeys understand each other by writing a monkey language dictionary. For each word that is typed in, your program must determine whether it is a valid monkey language word.
Unlike in English, spelling in monkey language is very simple. Every word in monkey language satisfies the following rules, and every word satisfying the following rules is a monkey language word.
- A monkey language word is a special type of word called an A-word, which may be optionally followed by the letter
Nand a monkey language word. - An A-word is either only the single letter
A, or the letterBfollowed by a monkey language word followed by the letterS.
Here are some examples:
- The word
Ais a monkey language word because it is an A-word. - The word
ANAis a monkey language word because it is the A-wordAfollowed by the letterNand the monkey language wordA. - The word
ANANAis a monkey language word because it is the A-wordAfollowed by the letterNand the monkey language wordANA. - The word
BANANASis a monkey language word because it is an A-word, since it is the letterBfollowed by the monkey language wordANANAfollowed by the letterS.
Write a program which accepts words, one word on each line, and for each word prints YES if the word is a monkey language word, and NO if the word is not a monkey language word. The input word X indicates the program should terminate, and there is no output for word X (even though it is not a monkey word).
Sample Input
A
ANA
ANANA
BANANAS
BANANA
XSample Output
YES
YES
YES
YES
NO
Comments
i think it's hard to study the monkey word :))
If these are actually monkey words, then BANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANS is a monkey word
That's not a monkey word. Your word ends in "ANANAS" which is invalid. As stated in the question, a monkey language word containing the letter
Nmust be preceded and followed by another monkey word. The lastNis preceded by a monkey language word, but not followed by a monkey language word. All I have to say to you isBANANANANANANBANANANANANBANANASNANANANBANANASNANANANSS.can someone please help explain/guide me on what's wrong with my code? am i missing an edgecase?
https://dmoj.ca/src/5992485
never mind i found another approach to it
i kept getting the 3rd and 4th case wrong, can someone tell me why I am getting it wrong.
Try the test case
BANANASNBANANAS, output should beYESas it is two monkey-language words separated byN.I'd have thought monkey language would include "EEE EEE" and "AHH AHH". Well, who am I to judge.
Edit: (This is a joke to that one guy)
AA is not a monkey language word.
Also, the largest word in the input is 21 characters long (not including newline).
is BAS a monkey language word?
Think so.
According to CCC test data, blank words and words like "BS" are not monkey language words.
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We take official problem statements from the CCC. Unless there are significant issues with the problem statement, we don't change it.
The problem statement gives a clear input and output specification, even if it doesn't exist as a heading so I do not see the problem.
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Aren't all letters uppercase though? I don't even think there is a case where they're lowercase.
Is "BBBBASSSS" a monkey word?
Yes
Is BANASSNBBANAS a monkey word?
No
I keep getting WA on the last case. Can anyone give me a hint as to what I am doing wrong?
Try inputting "BANSA" into your program. It should output "NO" because the B and S are not separated by a monkey word.
Thank you for spotting my error.
ANABANANAS is a monkey word ??
No, because the two monkey words ('ANA' and 'BANANAS') aren't separated by an 'N'.
Is BANANASNBANANAS a monkey language word?
should be since it's a monkey-language word (BANANAS) followed by N, then by another monkey-language word.
Is BBANANASS a monkey language word?
Yes because it is a 'B' followed by a monkey language word ("BANANAS") and followed by 'S'
Is ANAANA a monkey language word?If not why?
No, since the two A words
ANAdo not have anNbetween themThis comment is hidden due to too much negative feedback. Show it anyway.
You may now use
System.exit; I've patched it to work.Just tell people to use return;
We block
System.exitfor security reasons.On the other hand, you could always use C++ and
std::exit.For Java, you could just use return to exit the main method, which will terminate the program
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No, they are not monkey language words.