Acertain robot can perform only 4 types of movement. it can move either up or down or left or right. these movements are represented by ’u’, ’d’, ’l’, ’r’. assume all these movements to be of unit distance. write a function named theroundtrip that takes all the movements the robot made in a day as input and output true of bool type if the robot returned to its starting position after its journey. otherwise, return false. if the input is bad print the message "bad input".

def theRoundTrip(movement):

   x=0

   y=0

   for i in movement:

       if i not in ["U","L","D","R"]:

           print("bad input")

           return

       if i=="U":

           y+=1

       if i=="L":

           x-=1

       if i=="D":

           y-=1

       if i=="R":

           x+=1

   return x==0 and y==0

answer:

in baseband transmission the whole bandwidth of the cable is utilized by a single signal. eg.Ethernet is using Basebands for LAN.

In the broadband transmission, multiple signals are sent on multiple frequencies simultaneously using a single channel. eg.Digital Subscriber Line (DSL)