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## Discussion of Problem 1942. Attack at the Orbit

What does this mean?
Posted by Sure 5 Jan 2013 15:03
Who can explain "The captain can’t rotate the weapon aiming system.",please?
Re: What does this mean?
Posted by Yagudin Ruslan 5 Jan 2013 15:07
The captain can't rotate angle
Re: What does this mean?
Posted by Sure 5 Jan 2013 15:10
Does it mean that the system can only shoot at targets both coordinates of which are integers on just one line?
Re: What does this mean?
Posted by Yagudin Ruslan 5 Jan 2013 15:25

Edited by author 05.01.2013 15:25
Re: What does this mean?
Posted by Sure 5 Jan 2013 15:54
What??Sorry, I can't see what you say.

Edited by author 05.01.2013 15:54
Re: What does this mean?
Posted by Sandro (USU) 5 Jan 2013 15:57
"laser can shoot at targets both coordinates of which are integers"

Any target with both integer coordinates in new coordinate system can be destroyed.
Re: What does this mean?
Posted by espr1t 5 Jan 2013 16:07
Really? This ought to be one of the most confusing statements I've ever seen, if this is true...
"The captain can’t rotate the weapon aiming system."
How come I can be at point (0, 0) and shoot at (1, 0) and (0, 1) if I can't rotate the aiming system?
Re: What does this mean?
Posted by Sandro (USU) 5 Jan 2013 16:11
You are not in point (0,0) - you are in the space near the planet. :) And all the points including (0,0) are on the planet's surface.
Re: What does this mean?
Posted by Sure 5 Jan 2013 16:17
Are you Sure? But I got Wrong Answer many times. If it is true, I think the second answer must be less than 0.5*sqrt(2). Am I right?
Re: What does this mean?
Posted by Mes 5 Jan 2013 16:56
Then is it true that every two pads can both be destroyed if they are equal after the decimal point?
Re: What does this mean?
Posted by Sandro (USU) 5 Jan 2013 17:02
This is true, for example, for pads with positive coordinates. Pads (0.0, 0.3) and (0.0, -0.7) can both be destroyed too.
Re: What does this mean?
Posted by Mes 5 Jan 2013 17:03
I see. Thanks :)