So I need to write a function based off of nCr, which I have here:
def choices(n, k):
if n == k:
return 1
if k == 1:
return n
if k == 0:
return 1
return choices(n - 1, k) + choices(n - 1, k - 1)
It works fine, but then I need to add in so that the user can
def choices(n, k):
if k == 1:
return n
if n == k:
return 1
if k == 0:
return 1
return choices(n - 1, k) + choices(n - 1, k - 1)
print ("Total number of ways of choosing %d out of %d courses: " % (n, k))
n = int(input("Number of courses you like: "))
k =
def choices(n, k):
if k == 1:
return n
if n == k:
return 1
if k == 0:
return 1
return choices(n - 1, k) + choices(n - 1, k - 1)
comb = choices(n, k)
print comb
print ("Total number of ways of choosing %d out of %d courses: " % (n, k))
n = int(input("Number
Just need a bit of help understanding this so I can actually start it.
The input to a program will come from a file called "asdf.in". This file will
have all the info needed for the course. The formatting of the input file is
described as follows, with denoting # of white spaces and denoting
So let's say I have a file and it looks like this:
Title 1: item
Title 2: item
etc
Is it possible to use a dictionary for something like the input above? Because
I want to be able to use the input above to delete the "Title 1" and "Title 2"
but still show the items (on separate lines).
Basical
What I've got is
def stu_scores():
lines = []
with open("file.txt") as f:
lines.extend(f.readlines())
return ("".join(lines[11:]))
scores = stu_scores()
for line in scores:
fields = line.split()
name = fields[0]
sum1 = int(fields[4]) + int(fields[5]) + int(fields[6
scores = stu_scores()
for line in scores:
fields = line.split()
name = fields[0]
print (fields)
Error comes up saying "IndexError: list index out of range."
--
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I'm trying to create a program that will prompt the user for a list of text
files to read from, then read those text files and build a dictionary of all
the unique words found. Then finally put those unique words into another file
and make it alphabetical order.
What I've got:
import string
s
1.a. Write a function temp(T, from_unit, to_unit) where from_unit and to_unit
are temperature units, either 'F' (or 'f') for fahrenheit, or 'C' (or 'c') for
celsius, or 'K' (or 'k') for kelvin; and T is a temperature number for the unit
from_unit. The function should return the temperature numbe
On Monday, September 23, 2013 9:56:45 AM UTC-4, Steven D'Aprano wrote:
> On Mon, 23 Sep 2013 05:57:34 -0700, kjakupak wrote:
>
> Now you're done! On to the next function...
>
>
>
> --
>
> Steven
def temp(T, from_unit, to_unit):
conversion_tab
On Monday, September 23, 2013 9:56:45 AM UTC-4, Steven D'Aprano wrote:
> On Mon, 23 Sep 2013 05:57:34 -0700, kjakupak wrote:
>
> Now you're done! On to the next function...
>
>
>
> --
>
> Steven
def temp(T, from_unit, to_unit):
conversion_tab
On Monday, September 23, 2013 8:07:44 PM UTC-4, Dave Angel wrote:
>
> I didn't see any spec that said Python 3.x. in version 2.x, this would
>
> be incorrect.
>
>
>
> --
>
> DaveA
It's for Python 3.2
--
https://mail.python.org/mailman/listinfo/python-list
On Monday, September 23, 2013 10:12:05 PM UTC-4, Denis McMahon wrote:
>
>
> If the first function you wrote allows you to convert temps in different
>
> scales to a common scale, then in the second function, you can call the
>
> first function to convert both temps to a common scale, and comp
I ended up with these. I know they're only like half right...
I was wondering if any of you had to do this, what would you end up with?
# Question 1.a
def temp(T, from_unit, to_unit):
if from_unit == 'C' or from_unit == 'c':
return 32 + (9/5)*T
elif from_unit == 'K' or from_unit ==
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).
All I have so far is:
def add(c1, c2):
ord(c1) - ord('a') + 1
ord(c
On Tuesday, October 8, 2013 10:47:39 AM UTC-4, Robert Day wrote:
> On 08/10/13 15:28, kjaku...@gmail.com wrote:
>
> Can you give some expected outputs? For example, add('A', 'B') should
>
> presumably return 'C', and add('M', 'B') should presumably return 'O',
>
> but what about add('A', 'A')
On Tuesday, October 8, 2013 11:36:51 AM UTC-4, rand...@fastmail.us wrote:
>
>
>
> Your description says capital letters, but 'a' is a lowercase letter.
>
>
>
> Does "mod 26" means A is 1, or is it 0? i.e., is A+A = B or is it A?
>
>
>
> What should your function do if the letter isn't a ca
I'm trying to write a boolean function that takes two Mytime objects, t1 and t2
as arguments, and returns True if the object falls inbetween the two times.
This is a question from the How to Think Like a Computer Scientist book, and I
need help.
What I've gotten so far:
class MyTime:
def _
On Wednesday, July 2, 2014 4:02:00 PM UTC-4, MRAB wrote:
> >
>
> If you want 'between' to be an instance method of the MyTime class, it
>
> needs 'self' as well as the 2 arguments 't1' and 't2'.
>
>
>
> You can then compare the hours, minutes and seconds of self against
>
> those of t1 and t2
On Thursday, July 3, 2014 9:01:09 AM UTC-4, Chris Angelico wrote:
>
>
>
> And what happens when you run this code? A NameError, I would expect.
>
> Do you understand how to define and call methods?
>
>
>
> ChrisA
Altered the code. But yes a nameerror came up
class MyTime:
def __init__
On Thursday, July 3, 2014 9:11:49 AM UTC-4, MRAB wrote:
> On 2014-07-03 13:51, kjaku...@gmail.com wrote:
>
> > On Wednesday, July 2, 2014 4:02:00 PM UTC-4, MRAB wrote:
>
> >> >
>
> >>
>
> >> If you want 'between' to be an instance method of the MyTime class, it
>
> >>
>
> >> needs 'self' as w
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