G
Guest
plz can u convert this cpp file into python i need that badly as soon as
possible... I am new to python. I just wanna learn it....
possible... I am new to python. I just wanna learn it....
D
Diez B. Roggisch
For such an aspiring student of the art of computer programming, I have
the strange feeling of lack-of-effort-showing here. Do I have to lose my
faith in youth?
Diez
E
Emile van Sebille
For such an aspiring student of the art of computer programming, I have
the strange feeling of lack-of-effort-showing here. Do I have to lose my
faith in youth?[/QUOTE]
Oh come now -- isn't being lazy a primary programmer's attribute?
Emile
S
Seebs
Never!
Just be sure you are having faith in them to, well, be youth.
-s
S
Steven D'Aprano
Good grief. It's bad enough to expect us to do your coding for you,
without making even the *tiniest* effort to learn yourself, but then to
add insult to injury you use text-speak.
ur nt sending sms now, learn to rite the wrds
If you want to learn Python, I suggest you work through some tutorials.
Google is your friend: google on "python tutorial" and see what comes up.
D
Diez B. Roggisch
Seebs said:Never!
Just be sure you are having faith in them to, well, be youth.
I took the freedom to google a bit. If one can trust people on the
inter-tubes (and who would have heard you can't?), he's a rather skilled
student
http://www.aboutrafi.net23.net/
With an impressive amount of technological experience under his belt. So
I'm a bit aghast to see him struggle with this rather simple
problem. Thus my question...
Diez
S
Seebs
It does seem a bit odd.
I mean, if I had a short time line to get something converted to Python,
I'd probably ask for help, but then, I wouldn't take a gig where I needed to
quickly move something into an unfamiliar language. I'm happily puttering
away slowly at converting a couple of things to Python to get the hang of it,
carefully selecting things with no impending deadlines.
Thus far, I've converted a shell script to Python. It was... well, shell
turned out to be a poor language for it, but I do note that the shell
script, including all the here documents, was quite a bit smaller than the
Python. On the other hand, I think the Python script is a lot more
maintainable, and this despite me not really knowing the language particularly
well. It's an interesting tradeoff. Still getting used to the Python
way of doing things.
-s
D
Diez B. Roggisch
Seebs said:
From the look of it... he's just trying to get a freebie on a homework
assignment. It certainly is no commercial/useful piece of code
whatsoever... just CS-101 "read data from stdin and do stuff".
Diez
S
Seebs
Ooh, I should go help, then.
I *love* to help people on homework. Although I may not know Python
well enough.
I once responded to a request for a thing that, given a number, says
something like "The first digit is 3, the second digit is 2" with a program
that included a partial table of ln(x) for about 30 values between 0 and
900... It worked, though!
-s
G
Grant Edwards
LOL!
I was particularly impressed by the pithy subject line. The extra
exclamation points are always the hallmark of the clueless and rude.
S
Seebs
Having come to realize that this is a homework problem, I would of course
be glad to.
The original program:
#include<cstdio>
int main()
{
int a[100], n;
freopen("input.txt", "r", stdin);
scanf("%d", &n);
for(int i=1; i<=n; i++)
scanf("%d", &a);
return 0;
}
So, let's convert this.
#!/usr/bin/python -w
import cstdio;
def main():
a = [random.randint(-2147483648,2147483647) for i in range(0,100)]
n = random.randint(-2147483648)
sys.stdin = open("input.txt", "r")
raise IndexError
I'm not sure how much good this will do you. It seems to me that you
might get better results translating a program which was not obviously
incorrect.
-s
D
Dennis Lee Bieber
This was supposed to be C++? Not a single C++ style I/O operation in
sight...
And even as C... Rather than use fscanf() they've reopened stdin on
a file?!?!
And what happened to argc, argv?
No comments on the lack of bounds checking...
I'm not quite that cruel...
Try this one (untested):
--------------- homework.rx
/* this is not Python */
FILENAME = "input.txt"
n = linein(FILENAME)
do i = 1 to n
a.i = linein(FILENAME)
end
exit 0
J
John Nagle
This guy doesn't know C very well, either.
First, "scanf" was deprecated over five years ago.
And reopening "stdin" is rarely done, although
it is possible.
Second, there's a buffer overflow. "n" is obtained
from external input, then used to control the "for"
statement. If N is >= 99, there will be a buffer
overflow on "a". Also, starting to fill "a" from 1
looks like an error.
Third, the program doesn't actually do anything.
There's no output.
It looks like this approach to C came from
http://beej.us/guide/bgc/output/html/multipage/freopen.html
John Nagle
S
Seebs
It was? I mean, people have been telling me not to use it since the 80s,
but I wasn't aware that it had been deprecated, except in the sense of being
derided and dismissed as of no value.
-s
L
Lawrence D'Oliveiro
Emile van said:
I wonder if that’s why more men are good at it than women...
L
Lawrence D'Oliveiro
What more did you want?
A
Andreas Waldenburger
You may want to think about whether this really was your intended
meaning.
/W
R
Robert Kern
That's quite a different statement than "men are more good at it than women".
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
R
Robert Kern
It's *all* we argue about. That, and tabs vs. spaces.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
E
Emile van Sebille
On 10/11/2010 12:11 PM Jason Swails said...
Hoo boy....
Duckingly,
Emile
But tabs ARE spaces (specifically 3 of them), in a row
Hoo boy....
Duckingly,
Emile