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Discussion of Problem 1368. Goat in the Garden 3

To admins: problem task in Russian and in English
Posted by Smilodon_am 3 Oct 2009 15:16
The problem task in Russian isn't equal to the problem task in English. The English text have following sentence: "You have to put the fence in the minimum number of squares so that the goat will be able to visit exactly K squares." It means that our region built could contain only K squares and something else, for example halves squares (as in example). But in the problem task in Russian this sentence is as follows:
"Требуется, поставив минимальное число секций, предоставить козлу участок ровно из K квадратов."
It means that the region contains only K squares and nothing else.

I think that this sentence should be rewritten as follows:
"Требуется, поставив минимальное число секций, предоставить козлу возможность посетить ровно K квадратов."


And something else.

English sentence contains phrase: "to put the fence in the minimum number of squares". But how should we count number of squares if the fence is put on the bound of two squares?!!
Re: To admins: problem task in Russian and in English
Posted by Sandro (USU) 3 Oct 2009 17:21
"You can build a fence in some of the garden's elementary squares." (English version)

"Хозяева козла умеют ставить секции забора в отдельных элементарных квадратах на поле." (Russian version)

So the fence consists of the unit squares, not of line segments.

Sample test can be written as follows:
..X.
.X.X
X..X
.XX.

Edited by author 03.10.2009 17:22