Discussion @ 1042. Central Heating @ Timus Online Judge

Aleksei Zobnin Help me to solve this problem, please! [3] // Problem 1042. Central Heating 16 Jan 2002 18:58

Subj.

Michael_Rybak Do you know Gauss method of solving liear systems? Use it here with xor (with modifications, of course) (-) [2] // Problem 1042. Central Heating 16 Jan 2002 20:59

Aleksei Zobnin I've got accepted already, thank you. [1] // Problem 1042. Central Heating 17 Jan 2002 13:11

But it seems to me that in some situations my program doesn't work
properly. For example, when the rank of matrix is less than n, there
are several solutions. I didn't choose the shortest one of them, but
nevertheless I've got AC.

Evgeniy Re: I've got accepted already, thank you. // Problem 1042. Central Heating 27 Mar 2006 18:56

There can't be more than one solution ;-)
Because if there could, some group of workers could do the same work as the other.
>It is well known that every technician earns his money not in vain so it’s impossible to replace any technician by any combination of other technicians.

PS Sorry for bad english

Discussion of Problem 1042. Central Heating