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这个就对了,其他的一样

Posted by sunmoonstar_love at 2005-08-04 17:36:30 on Problem 2524
In Reply To:c/c++不是excel,uset[]的内容不会自动变的 Posted by:frkstyc at 2005-08-04 17:34:00

    while(scanf("%d%d",&n,&m) && n+m)
    {
        for(i=0; i<=n; i++)
            uset[i] = i;
        ans = n;
        for(i=0; i<m; i++)
        {
            scanf("%d%d",&a,&b);
            if(Root(a)!=Root(b))
            {
                ans--;
               uset[uset[b]] = uset[a];
            }    
        }
        printf("Case %d: %d\n",ncase,ans);   
        ncase++;     
    } 

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