i'm trying to do split def function parameter into two user input then sum up both value then print out.
Example code:
def ab(b1, b2):
if not (b1 and b2): # b1 or b2 is empty
return b1 + b2
head = ab(b1[:-1], b2[:-1])
if b1[-1] == '0': # 0+1 or 0+0
return head + b2[-1]
if b2[-1] == '0': # 1+0
return head + '1'
# V NOTE V <<< push overflow 1 to head
return ab(head, '1') + '0'
print ab('1','111')
I would like to change "print ab('1','111')" to user input.
My code:
def ab(b1, b2):
if not (b1 and b2): # b1 or b2 is empty
return b1 + b2
head = ab(b1[:-1], b2[:-1])
if b1[-1] == '0': # 0+1 or 0+0
return head + b2[-1]
if b2[-1] == '0': # 1+0
return head + '1'
# V NOTE V <<< push overflow 1 to head
return ab(head, '1') + '0'
b1 = int(raw_input("enter number"))
b2 = int(raw_input("enter number"))
total = (b1,b2)
print total
My result: 1,111
Expect result:1000
I don't know how you're getting the return working here. First of all (as Daniel) stated, you have the function call missing/improper.
total = ab(b1,b2)
Secondly, you're type-casting (changing type of input from string to integer) - and in your function ab you're applying string slicing on the b1 and b2, which will result in an exception:
Traceback (most recent call last):
File "split_def.py", line 33, in <module>
total = ab_new(b1,b2)
File "split_def.py", line 21, in ab_new
head = ab_new(b1[:-1], b2[:-1])
TypeError: 'int' object has no attribute '__getitem__'
The final working code has to be:
def ab(b1, b2):
if not (b1 and b2): # b1 or b2 is empty
return b1 + b2
head = ab(b1[:-1], b2[:-1])
if b1[-1] == '0': # 0+1 or 0+0
return head + b2[-1]
if b2[-1] == '0': # 1+0
return head + '1'
# V NOTE V <<< push overflow 1 to head
return ab(head, '1') + '0'
b1 = raw_input("enter number")
b2 = raw_input("enter number")
total = ab(b1,b2)
print "total", total