Discussion @ 1942. Attack at the Orbit @ Timus Online Judge

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What does this mean? Sure 5 Jan 2013 15:03

Who can explain "The captain can’t rotate the weapon aiming system.",please?

Re: What does this mean? Yagudin Ruslan 5 Jan 2013 15:07

The captain can't rotate angle

Re: What does this mean? 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? Yagudin Ruslan 5 Jan 2013 15:25

Edited by author 05.01.2013 15:25

Re: What does this mean? 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? 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? 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? 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? 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? 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? 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? Mes 5 Jan 2013 17:03

I see. Thanks :)

Discussion of Problem 1942. Attack at the Orbit