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么样才可以输出 答案 , 那个答案是怎么得出来的 撒 ?? 那位高手帮帮忙呀 ?

Posted by 2147483648 at 2007-10-02 17:59:10 on Problem 1861
   我的程序的答案是
    1
    3
    1  2
    1  3
    3  4

    我用的方法是并查集和最小生成树   为什么 ?

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