How to use SYS_CONNECT_BU_PATH to get max(level)?

This is the example from
http://otn.oracle.com/products/oracle9i/daily/oct04.html
How can I modify this query to get the max(level)?
This query displays all levels 1, 2, 3
SELECT employee_name, LEVEL,
SYS_CONNECT_BY_PATH(employee_name, '/') "PATH"
FROM employee
START WITH employee_name = 'KING'
CONNECT BY PRIOR employee_id = manager_id;
This query returns the employee name and the management chain for each employee starting with the employee 'KING.' The results, using the same values shown in the first example, would look like:
EMPLOYEE_NAME PATH LEVEL
King /King 1
Greenberg /King/Greenberg 2
Faviet /King/Greenberg/Faviet 3
Chen /King/Greenberg/Chen 3
Sciarra /King/Greenberg/Sciarra 3
Urman /King/Greenberg/Urman 3
Popp /King/Greenberg/Popp 3
My question is -
How can I modify this query to get the max(level)?
ie - only these records -
Faviet /King/Greenberg/Faviet 3
Chen /King/Greenberg/Chen 3
Sciarra /King/Greenberg/Sciarra 3
Urman /King/Greenberg/Urman 3
Popp /King/Greenberg/Popp 3

sql>select level, sys_connect_by_path(e.ename, '/') path
2    from emp e
3   where level = (select max(level)
4                    from emp
5                   start with mgr is null
6                   connect by prior empno = mgr)
7   start with mgr is null
8   connect by prior empno = mgr;
    LEVEL PATH
        4 /KING/JONES/SCOTT/ADAMS
        4 /KING/JONES/FORD/SMITH
2 rows selected.
sql>select level, sys_connect_by_path(e.ename, '/') path
2    from emp e
3   where level = (select max(level) - 1
4                    from emp
5                   start with mgr is null
6                   connect by prior empno = mgr)
7   start with mgr is null
8   connect by prior empno = mgr;
    LEVEL PATH
        3 /KING/JONES/SCOTT
        3 /KING/JONES/FORD
        3 /KING/BLAKE/ALLEN
        3 /KING/BLAKE/WARD
        3 /KING/BLAKE/MARTIN
        3 /KING/BLAKE/TURNER
        3 /KING/BLAKE/JAMES
        3 /KING/CLARK/MILLER
8 rows selected.

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How to use SYS_CONNECT_BU_PATH to get max(level)?

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