int main()
{
int cases;
cin >> cases;
int tn;
for(int tcase = 1; tcase <= cases; ++tcase)
{
s1.clear();
s2.clear();
adjList.clear();
adjMat.clear();
parent.clear();
s1Size = 0;
s2Size = 0;
start = 0;
sink = 0;
// Get input, Build adjacency list + matrix
cin >> s1Size;
for(int n = 0; n < s1Size; ++n)
{
scanf("%i", &tn);
s1.insert(tn);
adjList[tn] = si();
adjMat[tn] = mii();
}
cin >> s2Size;
for(int n = 0; n < s2Size; ++n)
{
scanf("%i", &tn);
s2.insert(tn);
adjList[tn] = si();
adjMat[tn] = mii();
for(si_it a = s1.begin(); a != s1.end(); ++a)
if((tn == 0 && *a == 0) || tn == 0 ||
(*a != 0 && tn % (*a) == 0))
{
adjList[*a].insert(tn);
adjMat[*a][tn] = 1;
adjMat[tn][*a] = 1;
}
else
{
adjMat[*a][tn] = 0;
adjMat[tn][*a] = 0;
}
}
for(start = 0; s1.count(start) || s2.count(start); ++start) {}
for(sink = 1; s1.count(sink) || s2.count(sink) ||
sink == start; ++sink) {}
adjList[start] = si();
adjList[sink] = si();
adjMat[start] = mii();
adjMat[sink] = mii();
for(si_it a = s1.begin(); a != s1.end(); ++a)
{
adjList[start].insert(*a);
adjMat[start][*a] = 1;
adjMat[*a][start] = 1;
}
for(si_it a = s2.begin(); a != s2.end(); ++a)
{
adjList[*a].insert(sink);
adjMat[*a][sink] = 1;
adjMat[sink][*a] = 1;
}
// Edmonds Karp's
int maxFlow = 0;
while(true)
{
queue<int> bfsQ;
set<int> visited;
tFlow = 0;
bfsQ.push(start);
visited.insert(start);
while(!bfsQ.empty())
{
int tn = bfsQ.front();
bfsQ.pop();
if(tn == sink)
break;
for(si_it a = adjList[tn].begin();
a != adjList[tn].end(); ++a)
{
if(adjMat[tn][*a] > 0 && !visited.count(*a))
{
visited.insert(*a);
parent[*a] = tn;
bfsQ.push(*a);
}
}
}
augmentPath(sink, INF);
if(tFlow == 0)
break;
maxFlow += tFlow;
}
printf("Case %i: %i\n", tcase, maxFlow);
}
return 0;
}
int main()
{
int n,m,x,y,i;
while(scanf("%d%d", &n, &m)!=EOF)
{
vs.clear();
for(i=0; i<n; ++i) v[i].clear();
for(i=0; i<m; ++i)
{
scanf("%d%d", &x, &y);
--x; --y;
v[x].push_back(y);
v[y].push_back(x);
}
for(i=0; i<n; ++i)
{
s1.insert(i);
sort(v[i].begin(), v[i].end());
}
while(!s1.empty())
{
x=*s1.begin();
s1.erase(x);
s2.clear();
q.push(x);
while(!q.empty())
{
x=q.front(); q.pop();
s2.insert(x);
for(sit=s1.begin(); sit != s1.end();)
{
y=*sit;
++sit;
if(!binary_search(v[x].begin(), v[x].end(), y))
{
q.push(y); s1.erase(y);
}
}
}
vs.push_back(s2);
}
printf("%u\n", vs.size());
for(i=0; i<vs.size(); ++i)
{
printf("%u", vs[i].size());
for(sit=vs[i].begin(); sit != vs[i].end(); ++sit)
{
printf(" %d", *sit+1);
}
puts("");
}
}
return 0;
}
int main()
{
while(cin >> nNodes)
{
worst.clear();
best.clear();
for(int i = 1; i <= nNodes; ++i)
adjList[i].clear();
int nAdj;
for(int n = 1; n <= nNodes; ++n)
{
scanf("%i", &nAdj);
int tempn;
for(int a = 0; a < nAdj; ++a)
{
scanf("%i", &tempn);
adjList[n].insert(tempn);
adjList[tempn].insert(n);
}
}
farLen = farNode = 0;
memset(visited, 0, sizeof(visited));
dfs1(1, 0);
farLen = 0;
memset(visited, 0, sizeof(visited));
dfs2(farNode, 0);
memset(visited, 0, sizeof(visited));
dfs2(*(worst.begin()), 0);
memset(visited, 0, sizeof(visited));
for(int i = 1; i <= nNodes; ++i) height[i] = INF;
dfs3(*(worst.begin()), 0);
int minH = INF+1;
for(int i = 1; i <= nNodes; ++i)
{
if(height[i] == minH)
best.insert(i);
if(height[i] < minH)
{
best.clear();
best.insert(i);
minH = height[i];
}
}
if(nNodes == 1)
{
best.clear();
worst.clear();
best.insert(1);
worst.insert(1);
}
printf("Best Roots :");
for(si_it it = best.begin();
it != best.end(); ++it)
printf(" %i", *it);
cout << endl;
printf("Worst Roots :");
for(si_it it = worst.begin();
it != worst.end(); ++it)
printf(" %i", *it);
cout << endl;
}
return 0;
}