flowchart

[sameer]

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

[Joachim Schmitz]

sameer wrote:

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

homework alert!

Try it yourself first and show what you tried and were you got stuck

Bye, Jojo

[Chris Dollin]

sameer wrote:

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

What benefit do you expect to gain from a flowchart?

Displaying all prime numbers less than some N is trivial. It's /not/
displaying /composite/ numbers that's hard ...

--
"It would have to be enough." /Brokedown Palace/

Hewlett-Packard Limited Cain Road, Bracknell, registered no:
registered office: Berks RG12 1HN 690597 England

[santosh]

sameer wrote:

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

What exactly do you expect from this post? Have you made an attempt
yourself? If so, post your code, however incomplete or ugly it may be.
I suppose you do know what prime numbers are? How would you solve the
second part of your problem with a pen and paper? Your maths textbook
should have algorithms for doing this. Try implementing them in C.

[Eric Sosman]

sameer wrote:

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

Flowcharts are difficult in monospaced text, so I'll leave
that part to you. Here's the program, though, with error- and
sanity-checking omitted for brevity:

#include <stdio.h>
int main(void) {
unsigned int limit;
unsigned int value;
printf ("Number, please? ");
fflush (0);
scanf ("%u", &limit);
printf ("The prime numbers less than %u "
"are listed below:\n", limit);
for (value = 2; value < limit; ++value)
printf ("\t%u\n", value);
printf ("... along with a few false positives.\n");
return 0;
}

--
Eric Sosman
es*****@ieee-dot-org.invalid

[santosh]

Eric Sosman wrote:

sameer wrote:

>1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

Flowcharts are difficult in monospaced text, so I'll leave
that part to you. Here's the program, though, with error- and
sanity-checking omitted for brevity:

#include <stdio.h>
int main(void) {
unsigned int limit;
unsigned int value;
printf ("Number, please? ");
fflush (0);

Can you tell me why you're using 0 instead of stdout?

scanf ("%u", &limit);
printf ("The prime numbers less than %u "
"are listed below:\n", limit);
for (value = 2; value < limit; ++value)
printf ("\t%u\n", value);
printf ("... along with a few false positives.\n");
return 0;
}

[Walter Roberson]

In article <g2**********@registered.motzarella.org>,
santosh <sa*********@gmail.comwrote:

>Eric Sosman wrote:

>printf ("Number, please? ");
fflush (0);

>Can you tell me why you're using 0 instead of stdout?

$ man fflush
When calling fflush, if stream is a null pointer, all files open for
writing only and all files open for update whose last operation was a
write are flushed.

--
"There is nothing so bad but it can masquerade as moral."
-- Walter Lippmann

[Harald van =?UTF-8?b?RMSzaw==?=]

On Wed, 11 Jun 2008 16:08:51 +0000, Walter Roberson wrote:

In article <g2**********@registered.motzarella.org>, santosh
<sa*********@gmail.comwrote:

>>Eric Sosman wrote:

>>printf ("Number, please? ");
fflush (0);

>>Can you tell me why you're using 0 instead of stdout?

$ man fflush
When calling fflush, if stream is a null pointer, all files open
for writing only and all files open for update whose last operation
was a write are flushed.

That means fflush(0) is valid, not that it's a good idea. In this case, I
don't see the benefit to fflush(0) either, so I'm also curious for the
reason behind it.

[Eric Sosman]

Walter Roberson wrote:

In article <g2**********@registered.motzarella.org>,
santosh <sa*********@gmail.comwrote:

>Eric Sosman wrote:

>>printf ("Number, please? ");
fflush (0);

>Can you tell me why you're using 0 instead of stdout?

$ man fflush
When calling fflush, if stream is a null pointer, all files open for
writing only and all files open for update whose last operation was a
write are flushed.

"What he said." And my purpose was obfuscatory deviltry,
with a sneaking hope that it might survive all the way into
the O.P.'s homework submission, where it would likely elicit
santosh's question from the O.P.'s instructor and cause him
a well-deserved dose of embarrassment ...

--
Er*********@sun.com

[Keith Thompson]

Eric Sosman <Er*********@sun.comwrites:

Walter Roberson wrote:

>In article <g2**********@registered.motzarella.org>,
santosh <sa*********@gmail.comwrote:

>>Eric Sosman wrote:

>>>printf ("Number, please? ");
fflush (0);

>>Can you tell me why you're using 0 instead of stdout?

$ man fflush
When calling fflush, if stream is a null pointer, all files open for
writing only and all files open for update whose last operation was a
write are flushed.

"What he said." And my purpose was obfuscatory deviltry,
with a sneaking hope that it might survive all the way into
the O.P.'s homework submission, where it would likely elicit
santosh's question from the O.P.'s instructor and cause him
a well-deserved dose of embarrassment ...

Which won't happen now that you've admitted it in public. Oh, well.

Next time, consider fflush(L'\0').

--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
Nokia
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"

[CBFalconer]

Eric Sosman wrote:

Walter Roberson wrote:

>santosh <sa*********@gmail.comwrote:

>>Eric Sosman wrote:

printf ("Number, please? ");
fflush (0);

Can you tell me why you're using 0 instead of stdout?

$ man fflush
When calling fflush, if stream is a null pointer, all files
open for writing only and all files open for update whose
last operation was a write are flushed.

"What he said." And my purpose was obfuscatory deviltry, with
a sneaking hope that it might survive all the way into the
O.P.'s homework submission, where it would likely elicit
santosh's question from the O.P.'s instructor and cause him a
well-deserved dose of embarrassment ...

An elegant objective, and quite possibly achieved, since the guilty
student has not reappeared, and so may have taken your method and
submitted it.

--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home.att.net>
Try the download section.
** Posted from http://www.teranews.com **

[rahul]

On Jun 11, 11:44 am, sameer <[e-mail]:

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

Try Sieve of Eratosthenes.
http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes
<weird>
You are using this as a homework forum and everyone is responding.
</weird>

[Chris Dollin]

rahul wrote:

On Jun 11, 11:44 am, sameer <[e-mail]:

>1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

Try Sieve of Eratosthenes.
http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes
<weird>
You are using this as a homework forum and everyone is responding.
</weird>

As a wise Narn said, "not all replies are answers".

--
"I am trying to say that you have no choice." /The Courts of Chaos/

Hewlett-Packard Limited Cain Road, Bracknell, registered no:
registered office: Berks RG12 1HN 690597 England

[Antoninus Twink]

On 11 Jun 2008 at 6:44, sameer wrote:

1-develop a flowchart and then write a c program to display all prime
number less than the number entered by the user.

#include <stdio.h>
#include <gmp.h>

int main(int argc, char **argv)
{
int status=0;

if(argc>1) {
mpz_t n,p;
mpz_init_set_si(p, 2);
if(mpz_init_set_str(n, argv[1], 10)==0) {
while(mpz_cmp(p, n) <= 0) {
mpz_out_str(stdout, 10, p);
puts("");
mpz_nextprime(p,p);
}
} else {
fputs("Invalid argument\n", stderr);
status=1;
}
mpz_clear(n);
mpz_clear(p);
} else {
fprintf(stderr, "Usage: %s n\nPrints the primes <= n\n", *argv);
status=2;
}
return status;
}

[Don]

On Jun 11, 1:44*am, sameer <[e-mail]:

1-develop a flowchart and then write a c program to display allprime
number less than the number entered by the user.

#include <stdio.h>

/* This program implements a blindingly fast O(n^n) algorithm
to find prime numbers, using an elegant recursive method. */
int _(int n, int m, int d, int t=0)
{
int r;
if (t) return d?1+_(n,m,d-1,d):n?_(n-1,m,m,n):0;
for(r=m!=n; d*(t<n); ++t)
r &= _(n,_(t,m,0,1),d-1)|!_(t,1,t);
return r*n;
}
/*------------------------------------------
Print primes up to the requested value
--------------------------------------------*/
int main(int argc, char* argv[])
{
int n,m;
scanf("%d",&m);
for(n = 2; n <= m; n++)
printf("%d is%s prime\n",n, _(n,1,n,0)?"":" not");
return 0;
}

[Ben Bacarisse]

Don <do*******@gmail.comwrites:

On Jun 11, 1:44Â*am, sameer <[e-mail]:

>1-develop a flowchart and then write a c program...

int _(int n, int m, int d, int t=0)

This is not C (though that may be deliberate given the context).

--
Ben.

[jacob navia]

Ben Bacarisse wrote:

Don <do*******@gmail.comwrites:

>On Jun 11, 1:44 am, sameer <[e-mail]:

>>1-develop a flowchart and then write a c program...

>int _(int n, int m, int d, int t=0)

This is not C (though that may be deliberate given the context).

Of course is not C, but lcc-win supports that!

:-)

--
jacob navia
jacob at jacob point remcomp point fr
logiciels/informatique
http://www.cs.virginia.edu/~lcc-win32

[CBFalconer]

jacob navia wrote:

Ben Bacarisse wrote:

>Don <do*******@gmail.comwrites:

>>sameer <[e-mail]:

1-develop a flowchart and then write a c program...

int _(int n, int m, int d, int t=0)

This is not C (though that may be deliberate given the context).

Of course is not C, but lcc-win supports that!

That sounds like a bug. How do you get lcc-win to report the error?

--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home.att.net>
Try the download section.

[Keith Thompson]

CBFalconer <cb********@yahoo.comwrites:

jacob navia wrote:

>Ben Bacarisse wrote:

>>Don <do*******@gmail.comwrites:
sameer <[e-mail]:

1-develop a flowchart and then write a c program...

int _(int n, int m, int d, int t=0)

This is not C (though that may be deliberate given the context).

Of course is not C, but lcc-win supports that!

That sounds like a bug. How do you get lcc-win to report the error?

It's obviously an extension.

If lcc-win's conforming mode works correctly, it will issue a
diagnostic. In the absence of any evidence that it doesn't, I suggest
that speculating about *possible* bugs in lcc-win (or any other
compiler) is both off-topic and a waste of time. (Which is not to
imply that mentioning the extension in the first place was topical.0

--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
Nokia
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"

[Billows]

On Jun 11, 2:44*pm, sameer <[e-mail]:

1-develop aflowchartand then write a c program to display all prime
number less than the number entered by the user.

You can try AutoFlowchart! http://www.ezProg.com
-----------------------------
AutoFlowchart is a excellent source code flowcharting tool to
generate flowchart from source code. Its flowchart can expand and
shrink. and you can pre-define the the width , height,Horizontal
spacing and vertical spacing. Move and zoom is also very easy. It can
export the flowchart as a Microsoft Visio,Word file or a bitmap file.
It can help programmers understand, document and visualize source
code.
It supports C,C++,VC++(Visual C++ .NET),Delphi(Object Pascal).
Maybe it can help you!
-----------------------------
auto generate flowchart from sourcecode
export the flowchart as Ms Visio file
export the flowchart as Ms Word file
expand and Shrink the flowchart
pre-define the base size of the flowchart block
zoom and move the flowchart freely
export the flowchart as a bitmap