#include<cstdio> using namespace std; int parent[50001]; int findparent(int n) { return parent[n]==n? n: findparent(parent[n]); } int main() { int n,m,tc=1,a,b; while (scanf("%d%d",&n,&m)!=EOF) { if (m+n==0) return 0; for (int i=1;i<=n;i++) parent[i]=i; while (m--) { scanf("%d%d",&a,&b); parent[findparent(a)]=findparent(b); } int r=0; for (int i=1;i<=n;i++) if (parent[i]==i) r++; printf("Case %d: %d\n",tc++,r); } return 0; }
Saturday, June 25, 2016
UVA 10583 Solution
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Studying at Shahjalal University of Science and Technology, Sylhet.
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