If you have some troubles with passing 16th test, try

20 3
10 5
5
1 4 8 12 16

I've passed test 16, but stuck on 17...
And, by the way, what is right answer on your test?

If my solution is correct(it got AC),then it's 0

I'm can't pass test #22 :(

This tests very helped me to pass test #16 and test #22:

7 3
5 2
1
1

answer 0

7 4
6 2
1
1

answer 0

Edited by author 09.03.2009 14:55

Could you explain please how to get answer 0 in your tests?
like in 1st for example:

worm is from 1 to 4 [1;4)
it means that empty part are only [0;1) and [4;7)
and I couldn't place the barbell without squashing the worm.

I'm wrong somewhere, please tell me.