[algogeeks] Re: question on fork()
@Ankuj: Sorry. I read the getch() as a call to green(). Please ignore the 20 green(). It should be 10 green() instead. -- DK http://twitter.com/divyekapoor http://www.divye.in http://gplus.to/divyekapoor -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/hUgNWEGwH5MJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: question on fork()
6 red 10 greens On Wed, Aug 24, 2011 at 9:25 AM, Ankuj Gupta wrote: > how can be there 20 greens ? > > On Aug 24, 12:12 am, DK wrote: > > The standard library is neither multithread safe nor multiprocess safe. > > If you want the correct answer, use shared memory and maintain a shared > > counter. Alternatively, as a quick hack, insert a fflush(stdout) after > the > > printf statements. > > > > Answer: > > red() - 6 > > green() - 20 > > > > -- > > DK > > > > http://twitter.com/divyekapoorhttp://gplus.to/divyekapoor > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > > -- *Shashi Kant * ***"Think positive and find fuel in failure"* *+919002943948 * *R&D engineer , Tejas Networks Ltd Banglore. * -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: question on fork()
how can be there 20 greens ? On Aug 24, 12:12 am, DK wrote: > The standard library is neither multithread safe nor multiprocess safe. > If you want the correct answer, use shared memory and maintain a shared > counter. Alternatively, as a quick hack, insert a fflush(stdout) after the > printf statements. > > Answer: > red() - 6 > green() - 20 > > -- > DK > > http://twitter.com/divyekapoorhttp://gplus.to/divyekapoor -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: question on fork()
The standard library is neither multithread safe nor multiprocess safe. If you want the correct answer, use shared memory and maintain a shared counter. Alternatively, as a quick hack, insert a fflush(stdout) after the printf statements. Answer: red() - 6 green() - 20 -- DK http://twitter.com/divyekapoor http://gplus.to/divyekapoor -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/KlDAxxIM-uoJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: question on fork()
I Can See 10 Green and 10 Red Process.. Can Someone Compile to verify
this...
Prem
On Tue, Aug 23, 2011 at 1:24 AM, gmagog...@gmail.com wrote:
> Infinite times
> Yanan Cao
>
>
>
> On Mon, Aug 22, 2011 at 2:43 PM, Don wrote:
>
>> // DO NOT RUN THIS! By inspection, how many times will it print "Hello
>> world"?
>> // If you find out by running it, that is cheating. Don't do it!
>> int main()
>> {
>> int i=0, j=0;
>> for(i = 0; i*j < 20; ++i)
>> {
>>if (fork() > 0) ++j;
>>else i = j = 0;
>>printf("Hello world\n");
>> }
>> return 0;
>> }
>>
>> --
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>>
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Re: [algogeeks] Re: question on fork()
Infinite times
Yanan Cao
On Mon, Aug 22, 2011 at 2:43 PM, Don wrote:
> // DO NOT RUN THIS! By inspection, how many times will it print "Hello
> world"?
> // If you find out by running it, that is cheating. Don't do it!
> int main()
> {
> int i=0, j=0;
> for(i = 0; i*j < 20; ++i)
> {
>if (fork() > 0) ++j;
>else i = j = 0;
>printf("Hello world\n");
> }
> return 0;
> }
>
> --
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Re: [algogeeks] Re: question on fork()
I am getting 6 red and 8 green as expected using the original code
Yanan Cao
On Mon, Aug 22, 2011 at 2:38 PM, Yasir wrote:
> Surprisingly, if I comment the last if condition ( which is AFTER red()
> call ), it is printing red only 6 times as expected..
> http://ideone.com/XMHzC
>
> main()
> {
> fork();
> int color=fork();
> if(color==0)
> fork();
> red();
> //if(color==0)
> // fork();
> green();
> getch();
>
> }
>
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[algogeeks] Re: question on fork()
// DO NOT RUN THIS! By inspection, how many times will it print "Hello
world"?
// If you find out by running it, that is cheating. Don't do it!
int main()
{
int i=0, j=0;
for(i = 0; i*j < 20; ++i)
{
if (fork() > 0) ++j;
else i = j = 0;
printf("Hello world\n");
}
return 0;
}
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[algogeeks] Re: question on fork()
Surprisingly, if I comment the last if condition ( which is AFTER red() call
), it is printing red only 6 times as expected.. http://ideone.com/XMHzC
main()
{
fork();
int color=fork();
if(color==0)
fork();
red();
//if(color==0)
// fork();
green();
getch();
}
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[algogeeks] Re: question on fork()
I am getting 6 calls to red and 8 calls to green when i built parent
child tree but when i ran this code
http://ideone.com/UBaBB
I got 10 calls to red and 10 calls to green.
Can some explain this ?
On Aug 22, 9:31 pm, ghsjgl k wrote:
> i saw this question in one of DREAM companies
>
> i dont know the answer
>
>
>
>
>
>
>
> On Mon, Aug 22, 2011 at 11:43 AM, dexter does wrote:
> > void red()
> > {
>
> > }
> > void green()
> > {
>
> > }
> > main()
> > {
> > fork();
> > int color=fork();
> > if(color==0)
> > fork();
> > red();
> > if(color==0)
> > fork();
> > green();
> > getch();
>
> > }
>
> > How many times red and green are called and pls give an explanation for
> > your answer
>
> > --
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> > "Algorithm Geeks" group.
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