On 08/10/13 18:42, Kristen Jakupak wrote:
I have to define a function add(c1, c2), where c1 and c2 are capital
letters; the return value should be the sum (obtained by converting the
letters to numbers, adding mod 26, then converting back to a capital
letter).
That makes no sense to me.
Can you explain what you mean in more detail. I read it as:
def add(c1, c2):
i1 = ord(c1) # convert to numbers
i2 = ord(c2)
i1 += i1 % 26 # add mod 26 - why?
i2 += i2 % 26
return str(i1+i2).upper() #add together and convert to upper case
That doesn't seem sensible to me.
What I have so far is
def add(c1, c2):
ans = ''
for i in c1 + c2:
ans += chr((((ord(i)-65))%26) + 65)
return ans
That seems different to what you described, and equally
non sensible?
Can you describe what the output should look like:
c1 c2 result
------------------------
a b ???
c d ???
A a ???
Can you create a sample table showing input and
desired output? That might help.
And if you can't, how do you intend to test it?
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos
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