when both the pointers are pointing to the same elements ( point 3 )
if ( _one . first == _two . second && _two . first == _one . second ) { if ( a1 [ _one . first ] < a2 [ _one . second ] ) { System . out . print ( " [ " + a1 [ _one . first ] + " , ▁ " + a2 [ _one . second ] + " ] ▁ " ) ;