@Don: How about this below...?
#include<stdio.h>
int main(int argc,char *argv[])
{
int a;
a=(argv[0]);
printf("%d",a%10);
getchar();
}
To get a random value b/w 0 to 100,
we can use a%100
and soon for 0-1000.....
What say guys..?
On 8/1/11, Don <dondod...@gmail.com> wrote:
> That's actually a big question, because computers are deterministic,
> so it is hard to see how they could act randomly.
>
> There are all sorts of pseudo-random generators which will produce a
> stream of output which appear more or less random. The larger and more
> sophisticated ones produce much better results than the poorly
> designed ones. Decades ago there was a "random" generator called randu
> which was notoriously bad, but before people figured out how flawed it
> was, hundreds of simulation studies had been performed with it, and
> most ended up being rejected as invalid based on the poor statistical
> qualities of randu.
>
> Today there are several high-quality generators, such as the Mersenne
> Twister. George Marsaglia has designed several excellent generators,
> as well as the Diehard battery of tests to measure the statistical
> quality of any generator.
>
> However, you seem to be wanting a single number which will be
> different each time you run a program.
>
> You could do something as simple as
>
> int random_value = 2 + (time() % 9);
>
> Or you could pick any well-known random generator, seed it, and use it
> to produce what you need.
>
> To get you started, this function will produce a pseudo-random stream
> of output in the range 0..65535 using Marsaglia's "multiply with
> carry" algorithm.
>
>
> unsigned int mwc()
> {
> static unsigned int x = time(0);
> x = 63663 * (x&65535) + (x>>16);
> return x&65535;
> }
>
> Don
>
> On Jul 31, 4:39 am, Puneet Gautam <puneet.nsi...@gmail.com> wrote:
>> Can we write a code to generate random numbers without using rand
>> function..?
>>
>> Pls help me on this!!
>
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