cout << k ;
if ( k == i k == j ) { continue ; } cout << " YES " << endl ; K -= 2 ; K /= 2 ; printLeftPath ( i , j , K ) ; cout << i << " ▁ " << j << " ▁ " << k << " ▁ " ; printRightPath ( j , k , K ) ; return ; } } } } } cout << " NO " ; }