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599.cpp
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599.cpp
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#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<math.h>
#include<vector>
#include<set>
#include<stack>
#include<map>
#include<queue>
#include<sstream>
#define lli long long int
#define ulli unsigned long long int
#define ii pair<int, int>
#define vi vector<int>
#define vii vector<ii>
#define rep(n) for(int i=0;i<n;i++)
#define iterate(x) for(auto itr=x.begin(); itr!=x.end();itr++)
using namespace std;
class UnionFind
{
private: vi parent, rank; int numOfSets; set<int> s;
public:
UnionFind(int N) {
rank.assign(N, 0);
rep(N)
{
parent.push_back(i);
s.insert(i);
}
numOfSets = N;
}
int findSet(int i)
{
return parent[i] == i ? i : parent[i] = findSet(parent[i]);
}
bool isSameSet(int i, int j)
{
return findSet(i) == findSet(j);
}
void unionSet(int i, int j)
{
if (!isSameSet(i, j))
{
int x = findSet(i), y = findSet(j);
if (rank[x] > rank[y])
parent[y] = x;
else
{
parent[x] = y;
if (rank[x] == rank[y])
rank[y]++;
}
numOfSets--;
auto x_itr = s.find(x),
y_itr = s.find(y);
if (x_itr != s.end())
s.erase(x_itr);
if (y_itr != s.end())
s.erase(y_itr);
}
}
int getNumberOfSets()
{
return numOfSets;
}
int getNumOfAcorns()
{
return s.size();
}
};
int main()
{
int tc;
cin >> tc;
while (tc--)
{
int cnt = 0;
map<char, int> node;
vector<string> lines;
string line;
while (cin >> line, line[0]!='*')
lines.push_back(line);
cin >> line;
for (int i = 0; i < line.length(); i += 2)
node[line[i]] = cnt++;
UnionFind uf(cnt);
iterate(lines)
uf.unionSet(node[itr->at(1)], node[itr->at(3)]);
int nos = uf.getNumberOfSets(), noa = uf.getNumOfAcorns();
printf("There are %d tree(s) and %d acorn(s).\n", nos - noa, noa);
}
return 0;
}
//AC