HBK_Wasi's blog

By HBK_Wasi, history, 6 years ago, In English

http://codeforces.com/contest/3/submission/31042409

{ XXX X00 X00 } Isn't it a illegal position of 'X' and '0'es ? Because when one gets 3 marks at a winning position he immediately wins and the game finishes. So how could anyone get this position with 5 'X'?

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6 years ago, # |
Rev. 2   Vote: I like it +1 Vote: I do not like it

If i understand you, you ask, why the position is correct {-xx,x00,x00}, and you make x in {0,0}, '-' mean empty cell