Contest 39: Autograder

[Corsix]

Current Rankings:
damyan used 196 tokens and was given a grsde of A. *
Alvaro used 201 tokens and was given a grade of A. *
jgbauman used 235 tokens and was given a grade of A. *
Corsix used 262 tokens and was given a grade of B. **
Beer Hunter used 270 tokens and was given a grade of B. **
Bladesniper used 293 tokens and was given a grade of B. **
Dante Shamest used 397 tokens and was given a grade of C.
exomo used 402 tokens and was given a grade of C.
schloob used unknown (400 - 500) tokens and was given a grade of D.
Reddyx used 492 tokens and was given a grade of D.
Syn used 698 tokens was was given a grade of E.
Kybo_Ren has withdrawn (was 850+) and was given a grade of E.

* an expert - can only enter for fun (classed as 250- tokens)
** an intermediate coder - can only enter for fun (classed as 251 - 350 tokens)

For those of you who need some help:

Code: Select all

// What you should do:
int main(...)
{
...
return 0;
}
// But to save tokens:
void main()
{
}

Code: Select all

// NO:
if(fred == bob)
return true;
else
return false;
// YES:
if(fred == bob)
return true;
return false;
// YES YES:
return (fred == bob ? true : false);
// YES YES YES :
return (fred == bob);

[Bladesniper]

Hey Corsix, you forgot the * near my name... I am doing what i am doing just for the fun of it ( as probably most of us do )

And i accidentaly saw that my program had a bug which automatically dropped my program to 270 tokens after fixing it!

Also, void main() is always wrong, although it won't affect your tokens because inside int main() you can ommit the return statetment.

I am having trouble trying figure out how to open the files and read from it. I have googled but not really having and luck? Just an example of what to do before using something like this would help.

You won't open anything. That's what you will d: You will read your input in the exact same way as you would do with a file. The only tiny difference is that you will use 'cin' to refer to what you previously called 'fin' ( ex. ifstream fin ( "input.txt" ); ), and you won't open anything. That's all.
When you'll run your program, you will redirect the input. That means that, if you are on windows, you'll open the console and write:

Code: Select all

program.exe < input.txt

That's all.

[Ryan]

Thank you Dante Shamest and Corsix. I just wish Ryan would have just said that (in plain english) and not leave it to the beginner to wonder and figure out.

I'm sorry for the confusion. I didn't mean to be obscure, and it's hard to foresee what everyone will need to know to understand the problem. But that's what the forums are for. You had a problem, came here, and found your answer. I'm satisfied with that.

If I do more contests like this (input from stdin, output to stdout), perhaps an addition to the contest FAQ would be in order.

[Ryan]

I din't get any response to my previous post about different divisions for entries:

We could have three divisions for the contest:

• Beginner - Submissions are checked for correctness only. The winner(s) are those who pass the most tests.
• Intermediate - Submissions must pass all tests and are judged on brevity (as the contest is now).
• Advanced - Same rules as intermediate, but reserved for the highest competitors.

I like the idea, but I've decided to put this off for now and implement it in a future contest.

Just in case you were wondering.

[Corsix]

I din't get any response to my previous post about different divisions for entries:
...
I like the idea, but I've decided to put this off for now and implement it in a future contest.

I quite like this idea: we have a league table of coders and then you get awared points for each contest you enter/where you are placed - this way you can classify somebody as beginner/inter.... and then each contest has 3 classes (begin,inter,expert).

[Guest]

You won't open anything. That's what you will d: You will read your input in the exact same way as you would do with a file. The only tiny difference is that you will use 'cin' to refer to what you previously called 'fin' ( ex. ifstream fin ( "input.txt" ); ), and you won't open anything. That's all.
When you'll run your program, you will redirect the input. That means that, if you are on windows, you'll open the console and write:

Code: Select all

program.exe < input.txt

That's all.

Thank you very much Bladesniper that did the job.

[Darobat]

I'm having second thoughts about maybe have entered this. Seeing in how it's over in 3 days, I think this is kinda late. Oh well.

[Alvaro]

Code: Select all

// NO: (well actually this is debateable...)
int main(...)
{
...
return 0;
}
// YES:
void main()
{
}

No, actually main() should always return int. The standard says that there is an implicit `return 0;' at the end of main(), so it's not any longer:

Code: Select all

int main(){
...
}

Code: Select all

// NO:
if(fred == bob)
return true;
else
return false;
// YES:
if(fred == bob)
return true;
return false;
// YES YES:
return (fred == bob ? true : false);
// YES YES YES :
return (fred == bob);

Code: Select all

// YES YES YES YES:
return fred==bob;

[Syn]

Any chance of getting bonus tokens taken off for not using vectors and maps, because not everybody knows how to uses them, like me , and they save token's.

[Corsix]

Any chance of getting bonus tokens taken off for not using vectors and maps, because not everybody knows how to uses them, like me , and they save token's.

This is a programming COMPETITION. In the olyimpics they don't ajust your score because you have a bad foot do they?

[Syn]

A fair point, can i join the para's then?

I know I should read more but don't have the time, and all the night school courses are basic unless I do a degree.

[Corsix]

A fair point, can i join the para's then?

lol. Don't worry, this is a begginers contest - all us non-begginers (see my post on top of page 8) can't / won't enter to win.

If you want a quick run down of maps then look here: viewtopic.php?t=5977

[Syn]

Doh!!!!!!!! 822

time to trim some fat!!!!!!!!!!!!

[Corsix]

Doh!!!!!!!! 822

time to trim some fat!!!!!!!!!!!!

If you need some help with the trimming and u got MSN then I'll be happy to help .

[Syn]

Cheers Corsix! I don't have MSN though.

Got it down to 698, exception handling is a waste of space appartently

I'll stop when i get to 666