Prime最小生成树(个人模板)

//Prime连通路模块
#define N 1000         //最大数据规模
#define MAXNUM 3000000   //最大路径长度
typedef double PrimeType;//路径类型

PrimeType PrimeRecord[N];
PrimeType dis[N][N];
int isLined[N] = {1,0};

PrimeType GetPrimeLength(const long n)
{
    PrimeType tmpLen = MAXNUM;
    long tmpPos = 0,left = n - 1;
    PrimeType sumLen = 0;

    for(long i = 1 ; i < n ; i ++)
        PrimeRecord[i] = dis[0][i];
    while(left --)
    {
        tmpLen = MAXNUM;
        for(long i = 1 ; i < n ; i ++)
            if(!isLined[i] && PrimeRecord[i] < tmpLen)
                tmpPos = i,tmpLen = PrimeRecord[i];

        sumLen += tmpLen;
        isLined[tmpPos] ++;
        for(long i = 1 ; i < n ; i ++)
            if(dis[tmpPos][i] < PrimeRecord[i])
                PrimeRecord[i] = dis[tmpPos][i];
    }

    return sumLen;
}