Search found 325 matches

by yiuyuho
Tue Jul 03, 2007 6:41 pm
Forum: Bugs and suggestions
Topic: 980 X-Express
Replies: 3
Views: 2077

O ok, as long as you're readnig :)
by yiuyuho
Sun Jul 01, 2007 8:04 am
Forum: Off topic (General chit-chat)
Topic: What is your record of solved problems during one day?
Replies: 18
Views: 68751

Josh Bao here:
http://acm.uva.es/problemset/usersnew.php?user=1659

Did about 600 problems in the past month, I wish I can be that inspired :-P
by yiuyuho
Sun Jul 01, 2007 1:04 am
Forum: Bugs and suggestions
Topic: 980 X-Express
Replies: 3
Views: 2077

Is anyone reading this even?
by yiuyuho
Sat Jun 30, 2007 7:04 am
Forum: Bugs and suggestions
Topic: 980 X-Express
Replies: 3
Views: 2077

980 X-Express

by yiuyuho
Fri Jun 29, 2007 7:48 am
Forum: Volume 9 (900-999)
Topic: 915 - Stack of Cylinders
Replies: 5
Views: 5824

It is ensured that each cylinder can touch no more than one cylinder at its left and no more than one cylinder at its right.

What cylinders is it refering to? 3 is touching 4 and 6 on the right, right? :-)
by yiuyuho
Thu Jun 28, 2007 4:10 am
Forum: Bugs and suggestions
Topic: 904 Overlapping Air Traffic Control Zones
Replies: 0
Views: 1821

904 Overlapping Air Traffic Control Zones

he input file contains several test cases, each of them consists of an integer 0 ≤ n ≥ 15 in the first line followed by n lines of 6-tuples


he input file contains several test cases, each of them consists of an integer 0 ≤ n <= 15 in the first line followed by n lines of 6-tuples
by yiuyuho
Mon Jun 18, 2007 6:24 pm
Forum: Volume 103 (10300-10399)
Topic: 10304 - Optimal Binary Search Tree
Replies: 24
Views: 12505

if all the weight you're adding is to the right, your root couldn't possibly shift to the left, it could only shift to the right (or stay the same) to compensate. I can see why that is intuitive to believe in, but it is still not clear to me that it is true for all cases. can you explain some more ...
by yiuyuho
Wed Jun 13, 2007 10:29 pm
Forum: Volume 9 (900-999)
Topic: 960 - Gaussian Primes
Replies: 12
Views: 5420

What methods did you guys use? Is this suppose to be an easy problem?
by yiuyuho
Tue Jun 12, 2007 2:14 am
Forum: Bugs and suggestions
Topic: Judge Status Halted
Replies: 1
Views: 1663

It seems this has been fixed!

Thanks!
by yiuyuho
Mon Jun 11, 2007 8:11 pm
Forum: Bugs and suggestions
Topic: Judge Status Halted
Replies: 1
Views: 1663

Judge Status Halted

It's not updating for a few hours......what's going on?
by yiuyuho
Sat Jun 09, 2007 7:53 am
Forum: Volume 111 (11100-11199)
Topic: 11170 - Cos(NA)
Replies: 22
Views: 13319

little joey wrote:I replaced llabs() with a handmade function and got your code accepted, ....
So the abs(long long) doesn't work on UVa? That's really weird! I've used it for other problems but for this one I had to hand make abs or I get WA. I guess I was just lucky in all my previous problems.......
by yiuyuho
Sat Jun 09, 2007 6:27 am
Forum: Volume 111 (11100-11199)
Topic: 11170 - Cos(NA)
Replies: 22
Views: 13319

Here's one more way: cos(a+b) = cos(a)cos(b) - sin(a)sin(b) cos(a-b) = cos(a)cos(b) + sin(a)sin(b) so cos(a+b)+cos(a-b) = 2 cos(a)cos(b). Now let a = (N-1)A, b = A, and you get the formula cos(NA) = 2cos((N-1)A) * cos(A) - cos((N-2)A) and it is clear that cos(NA) is a polynomial of degree N in cos(...
by yiuyuho
Thu Jun 07, 2007 7:16 pm
Forum: Volume 112 (11200-11299)
Topic: 11209 - Be Together Again and Forever
Replies: 9
Views: 3360

How can it be such a big difference though?
by yiuyuho
Thu Jun 07, 2007 4:37 pm
Forum: Volume 112 (11200-11299)
Topic: 11209 - Be Together Again and Forever
Replies: 9
Views: 3360

736 yiuyuho Be Together Again and Forever Solved C++ 0.850 2007-06-03 08:28:28

The time during contest was < 1sec...there must have been an error...lol!
by yiuyuho
Thu Jun 07, 2007 8:09 am
Forum: Volume 112 (11200-11299)
Topic: 11209 - Be Together Again and Forever
Replies: 9
Views: 3360

11209 - Be Together Again and Forever

I think I get this problem during contest and I submitted the same algorithm to the OJ and get TLE....did the data got enhanced?

What's happening?

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