Java implementation to find the minimum labelled node to be removed such that there is no cycle in the undirected graph
import java . util . ArrayList ; import java . util . Arrays ; class Pair { int first , second ; public Pair ( int first , int second ) { this . first = first ; this . second = second ; } } class GFG { static final int MAX = 100005 ; static int totBackEdges ; static int [ ] countAdj = new int [ MAX ] ; static int [ ] small = new int [ MAX ] ;