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可不可以加重边, 可不可以加自己到自己的边! 有没有人清楚啊! 题目又不说! 揣谜呀!

Posted by gogo_ccnu at 2004-09-28 13:29:17 on Problem 1848
例如:
加重边的情况:
     0
   /\\
  o   0 o   
            \
             o 应该输出:  -1or 2


加自己到自己边的情况:
    0
   /\\
  o   0 o    应该输出: -1 or 2
 

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