people! who has any ideas?

What about test 13? What is test ??!?!?!

Check if the plate fits in the tray

I check plate if in tray but WA 13 !!!

Do you found test or reason for WA 25?

I also had that problem but when I checked if big plate is placed in tray (2 * r > b  here r is the radius of cone at the height d (d < h) and b is small side of tray).
But now I have wa on test31

good luck

Edited by author 17.10.2010 03:39

Thanks. I can add, that we must check:
0 <= x + r && x + r <= w && 0 <= x - r && x - r <= w &&
0 <= y + r && y + r <= h && 0 <= y - r && y - r <= h;
for both plate x,y - coordinates of plate center's, r - minimal radius of plate, w,h - max(a,b), min(a,b)

Test:
2 10 1
1 3
1 3
2
Ans:
NO

Edited by author 17.10.2010 03:31

thanks your test helped me a lot. Thanks again

Yes! It was a very stupid mistake! I checked if radius of plates on the height d is not greater than a and not grater than b. But I should check their diameter instead it! This fact costed me 13 fail submissions...

I've read all the advice: my code meets all of them. Any other suggestions on WA25? Maybe someone is ready to look at my code? My e-mail is in my info. Thanks for any help.

I made a stupid mistake while reading the input data. First I read bottom sides and then top sides. Surprisingly, this solution bring me to WA25 and half-an-hour debugging.

It turned out I had read data in the same wrong manner and also got WA25! MAK, your advice was the most useful in this discussion ))

Try this test:
9 15 1
1 2
1 5
1

Answer is NO.

Why NO?
First (d=2)koord: 2 2
Second (d=5) koord: 4 10

I think YES, but WA 25...

i understood...

This test helped me on WA25:
20 28 1
1 2
11 12
1
Answer: NO.