626 - Ecosystem

[Observer]

Looks like I'm the only one in this board who has trouble on this task...

I would like to ask a simple little question: could any species possibly eat itself? I mean, would cases like this exists:

3
1 1 1
1 1 1
1 1 1

If so, how should I deal with such cases? Would anyone who got Accepted in this quesion give me some help, please......

Furthermore, I sure need some test cases for this problem. Please help!!

[junjieliang]

My output:

1 2 3
3 2 1
total:2

The three numbers on each line should be different from each other.

[Observer]

Thanks a lot!!! Got Accepted now

The three numbers on each line should be different from each other.

Where can this statement be found? I still couldn't see it....

[junjieliang]

I don't think the statement is found anywhere. The problem setter probably thought it obvious that a species cannot consume itself. Of course test cases on the OJ rarely fit into actual real life conditions, but I guess this problem does.

[Dominik Michniewski]

Code: Select all

edited and cutted

Never mind , I found my mistake ...

Best regards
DM

[mostafiz93]

I'm getting WA in this problem.
I used complete search to find all possible food chain and printed only the valid ones according to lexicographic order.
can anyone find any bug in my code?

Code: Select all

removed after AC

[mostafiz93]

the algorithm was ok. got a rank within 20.

[matheusdallrosa]

AFf the PDF format version has not the statement: Output a blank line after each test case.
But the HTML format has.

[uDebug]

Just to make things clear: Species can consume themselves. The judge's input has test cases like Observer shared. So make sure your code handles this.