Question

Exercise 4 Step 1: Create a new editor window and save it as a file named lab9ex4.py. Step 2: Use the function design recipe to develop a function named common_end. The function takes two lists of integers that are not empty, but which may have different lengths. The function returns True if they have the same first element or the same last element or if the first and last elements of both lists are the same. Otherwise, the function returns False

Answer 1

Code:

def common_end(list1,list2): #function which accepts two lists
  
if (list1[0]==list2[0] or list1[-1]==list2[-1]): #checking either starting element of two lists equal or ending elements of two lists equal.

#starting and ending elements same condition includes the above two conditions

return True #if elements are same return true

else:

return False #else return false

list1=[1,2,3,4,5]

list2=[3,4,5,6,7,5]

list3=[1,5,6,7,8,5] #three lists creating

list4=[9,6]

print(common_end(list1,list2)) #call common_end function by passing list1,list2 here it returns true since the ending element of two lists are same 5

print(common_end(list1,list3)) #call common_end function by passing list1,list3 here it returns true since the starting and ending elements of two lists are same

print(common_end(list4,list3)) #calling common_end function by passing list4,list3 here it returns false since the starting and ending elements are not same

Code and Output Screenshots:

def common_end(listi,list2): #function which accepts two lists if (list1[0]==list2[0] or listi[-1] -=list2[-1]): #checking either starting element of two lists equal or ending elements of two lists equal. #starting and ending elements same condition includes the above two conditions return True #if elements are same return true else: return false #else return false listl=[1,2,3,4,5] list=[3,4,5,6,7,5) List3=(1,5,6,7,8,5) #three lists creating list4=[9, 6] print (common_end (listi, list2)) #call common_end function by passing listi, list2 here it returns true since the ending element of two lists are same 5 print (common_end (listi, list3)) #call common_end function by passing listi, list3 here it returns true since the starting and ending elements of two lists are same print (common_end (list4, list3)) #calling common_end function by passing list4, list3 here it returns false since the starting and ending elements are not same

True True False

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