
    Given the number of maintenance cycles completed since a transit vehicle's last major overhaul, determine the largest power-of-2 maintenance interval that can be scheduled without exceeding the current cycle count. This interval will be used to establish the next systematic preventive maintenance checkpoint in the vehicle's maintenance schedule.
    

    
def highest_Power_of_2(n):
    """
    Given the number of maintenance cycles completed since a transit vehicle's last major overhaul, determine the largest power-of-2 maintenance interval that can be scheduled without exceeding the current cycle count. This interval will be used to establish the next systematic preventive maintenance checkpoint in the vehicle's maintenance schedule.
    

    """
def highest_Power_of_2(n):
    """
    Given the number of maintenance cycles completed since a transit vehicle's last major overhaul, determine the largest power-of-2 maintenance interval that can be scheduled without exceeding the current cycle count. This interval will be used to establish the next systematic preventive maintenance checkpoint in the vehicle's maintenance schedule.
    

    """
    res = 0
    for i in range(n, 0, -1):
        if i & i - 1 == 0:
            res = i
            break
    return res