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这题数据没问题,跟方向没关系。

Posted by zhouzhaohello at 2010-07-25 11:16:32 on Problem 1475
只不过先搜格子,后搜人时。
  要考虑先广搜到的格子最小,并不代表在这个位置人就是最小的。
  如 
     st.....
    ....#..
    .......
    ....B..
    ...#.#.
    ...#...
 这是这组列子先走上下,虽然推格子是一样多,但走的路多。

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