def iterative_deepening_search(problem):
    "[Fig. 3.18]"
    for depth in xrange(sys.maxint):
        result = depth_limited_search(problem, depth)
        if result != 'cutoff':
            return result
def iterative_deepening_search(problem):
    "[Fig. 3.18]"
    for depth in xrange(sys.maxint):
        result = depth_limited_search(problem, depth)
        if result != 'cutoff':
            return result
def iterative_deepening_search ( problem ) : for depth in xrange ( sys . maxint ) : result = depth_limited_search ( problem , depth ) if result != 'cutoff' : return result
[Fig. 3.18]
[ Fig . 3 . 18 ]