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终于过了,但很不爽,求解释~为什么初始秩设为1用C++交就WA,G++就可以过,而改成0,C++才可以过？？不解阿~

Posted by tongjiantao at 2010-11-05 10:03:03 on Problem 2513

并查集初始化: 
void Make_Set()
{
    for(int i = 1; i <= M; i++)
    {
        father[i] = i;//父节点
        rank[i] = 1;  //秩??? 
    }
}

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