Discussion @ 1311. Stable Construction @ Timus Online Judge

Need clarification.

Posted by Oberon (Yura Znovyak) 17 Apr 2004 15:24

What is the anwer for such construction:
2
2
10 20
50 60
2
10 20
50 60

is it stable?
But system of 2 bricks from second floor [10, 20] and [50, 60] have their center of mass in 35 which is not on brick.

Another example is sort of ladder:
4-ht level: [3, 6]
3-rd level: [2, 5]
2-nd level: [1, 4]
1-fs level: [0, 3]
in real word it is unstable, but what should I output?

Re: Need clarification.

Posted by Dmitry 'Diman_YES' Kovalioff 17 Apr 2004 16:13

The first one is stable, the second is not. Everything in this problem completely matches the real world.

Re: Need clarification.

Posted by Vladimir Yakovlev (USU) 17 Apr 2004 23:06

The system of breaks falls if its center of masses doesn't stand on another break, i.e. like in real world.

Tanks a lot!

Posted by Oberon (Yura Znovyak) 18 Apr 2004 00:09

IMO, a 'brick system' refers to more than one <b>adjacent</b> bricks. So the two bricks on the second floor can't be considered as a system.

Posted by Maigo Akisame (maigoakisame@yahoo.com.cn) 1 Oct 2004 16:58

Discussion of Problem 1311. Stable Construction