**fig9_66.txt**

/* 1*/	// Assign Low.  Also check for articulation points.

/* 2*/	void
/* 3*/	Assign_Low( Vertex V )
/* 4*/	{
/* 5*/	    Low[ V ] = Num[ V ];			// Rule 1.
/* 6*/	    for Each Vertex W Adjacent To V
/* 7*/	        if( Num[ W ] > Num[ V ] )		// Forward edge.
/* 8*/	        {
/* 9*/	            Assign_Low( W );
/*10*/	            if( Low[ W ] >= Num[ V ] )
/*11*/	                cout << V << " is an articulation point" << endl;
/*12*/	            Low[ V ] = Min( Low[ V ], Low[ W ] );	// Rule 3.
/*13*/	        }
/*14*/	        else
/*15*/	        if( Parent[ V ] != W )		// Back edge.
/*16*/	            Low[ V ] = Min( Low[ V ], Num[ W ] );	// Rule 2.
/*17*/	}