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back to boardWhy is the solution... Suppose: m<=n if m=1 then sol:=(n+1) div 2 else begin if (m mod 3=0)or(n mod 3=0) then sol:=2 else sol:=1; end; Why is this solution correct? Can someone explain this to me please? You can delete 3-line stones with another stone beside them Posted by aaakkk 3 Mar 2002 19:56 o o ooo => oo => o => o o <= this stone hasn't change his position but it delete 3 stones above itself. You can delete 3-line stones in this way, but pay attention that for every deletion, you must leave 3 row or 3 line stones for next deleteion in another direction.( You can delete stones in different direction. After that,the result is either 1 or 2) Good Luck. It has some mistake.......Now I have changed it. Posted by aaakkk 3 Mar 2002 19:58 Wrong................! > o o > ooo => oo => o => > o o <= this stone hasn't change his position > but it delete 3 stones above itself. > > You can delete 3-line stones in this way, but pay attention that > for every deletion, you must leave 3 row or 3 line stones for > next deleteion in another direction.( You can delete stones in > different direction. After that,the result is either 1 or 2) > > Good Luck. |
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