Jimbo

Sane - for the first one (beginner), what about int overflows? Since obviously we'll be using signed types for our input, will we need to check for the starting value + some subsequent operation overflowing from positive to negative? Also, is 1 considered prime?

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Sane

Don't worry about int overflows for any of the questions. The only one you might need to worry about that for is the last question, but that depends entirely on how you do it.

From now on, assume whenever I'm talking about "integers" or "values", I'm talking about anything calculatable with a 32-bit signed integer. If you ever need to use a long long or anything larger than 32-bits, it will be clearly stated.

For the definition of a prime number, consult Wikipedia. I'll say nothing more, because half of the beginner challenge is just writing a proper prime function (of course, it can still be as slow as you wish).

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Waterloo's Canadian Computing Competition (CCC) - Stage 2 Problems, Solutions, and Test Data

Freaky Chris

another question sane, silly one but. is 0 Positive, or niether positive or negative in the first challenge?

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Who said i couldn't program
sarcasm = raw_input('Type in a sarcastic remark: ')
print sarcasm

Sane

My goodness. How could I make such a mistake. It's supposed to be "non-negative". Not "positive". Good catch.

If someone just made the number sit there at zero, I would still give it to them. That would be the more clever interpretation. However, no, it should be non-negative.

I will fix that if I get editing abilities over my first post.

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Waterloo's Canadian Computing Competition (CCC) - Stage 2 Problems, Solutions, and Test Data

Grich

I see the challenge is set up. I would have replied alot sooner, but I was at work. As soon as my college assignment is done, I'll start it. Thanks alot Sane.

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SYNTAX ERROR ...

Freaky Chris

well i've completed or at least i think i have the first algorithm. So i though since i didn't have too much trouble with that one i would take a crack at the junior one. Im getting a bit frustrated with it though, as for some reason it appears to work perfectly for odd values of K but not even lol.

Chris

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Who said i couldn't program
sarcasm = raw_input('Type in a sarcastic remark: ')
print sarcasm

Sane

Sweet, have fun Grich.

Chris, "Junior" is kind of a misleading name for it, since it's not exactly for a junior programmer. But from a quick glance at your submission, it looks like you found it easy. I do see at least one small problem, but I'm not helping out that much.

P.S. For those who can do Junior, they should at least be able to tackle part marks on the Senior by getting it to work for n < 20.

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Waterloo's Canadian Computing Competition (CCC) - Stage 2 Problems, Solutions, and Test Data

big_k105

I added the pdf to the first post.

I will take a look at it in a little while and give them a go.

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Sane

Thanks.

Interesting. Python seems to be the most popular choice so far.

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Waterloo's Canadian Computing Competition (CCC) - Stage 2 Problems, Solutions, and Test Data

mbd

do you have any more test cases for the hurdles problem