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#ifndef DISJ_SETS_H
#define DISJ_SETS_H
// DisjSets class
//
// CONSTRUCTION: with int representing initial number of sets
//
// ******************PUBLIC OPERATIONS*********************
// void union( root1, root2 ) --> Merge two sets
// int find( x ) --> Return set containing x
// ******************ERRORS********************************
// No error checking is performed
#include <vector>
using namespace std;
/**
* Disjoint set class.
* Use union by rank and path compression.
* Elements in the set are numbered starting at 0.
*/
class DisjSets
{
public:
explicit DisjSets( int numElements );
int find( int x ) const;
int find( int x );
void unionSets( int root1, int root2 );
private:
vector<int> s;
};
#include "DisjSets.cpp"
#endif
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