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generating random numbers in C

 
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generating random numbers in C, problem with while loop
proaspirer
18 Sep, 2006 - 07:03 PM
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guys my code is smethin like this....

CODE

# include <stdio.h>
# include <conio.h>

void main()
{
int a,m,i,x[100];
int k=1,count=0;
float R[150];
clrscr();
printf("Enter a\n");
scanf("%d",&a);
printf("\nEnter m\n");
scanf("%d",&m);
for(i=0;i<4;i++)
{
x[1]=0;
printf("Enter value of x[0]");
scanf("%d",&x[i]);
do
{
x[k]=(a*x[k-1])%m;
R[k]=(float)x[k]/m;
count++;
printf(" %d\t %0.2f\n",x[k],R[k]);
}while(x[k]!=x[i])
k++;
printf("%d",count);
}
getch();
}

i want the random numbers to come for x[0]=1,2,3,4
and the while loop is givin me a problem...pls help
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Xing
RE: Generating Random Numbers In C
18 Sep, 2006 - 07:17 PM
Post #2

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Look up srand and time functions.
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proaspirer
RE: Generating Random Numbers In C
19 Sep, 2006 - 05:08 AM
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QUOTE(Xing @ 18 Sep, 2006 - 08:17 PM) *

Look up srand and time functions.



Its an assignment n i cannot use inbulit functions.....generate random numbers thru my program only...
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Xing
RE: Generating Random Numbers In C
19 Sep, 2006 - 05:57 AM
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Pseudorandom number generator
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born2c0de
RE: Generating Random Numbers In C
19 Sep, 2006 - 06:41 AM
Post #5

printf("I'm a %XR",195936478);
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What you have done is not random at all.
Here's a hint.

Take the number of milliseconds that have passed since midnight at different intervals of time and perform operations on this number so that it works out to be in the range that you require.
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proaspirer
RE: Generating Random Numbers In C
20 Sep, 2006 - 03:54 AM
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QUOTE(Xing @ 19 Sep, 2006 - 06:57 AM) *

Pseudorandom number generator




hey can u help me wth lzw encoding...whch i had posted yesterday???
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Xing
RE: Generating Random Numbers In C
20 Sep, 2006 - 04:55 AM
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QUOTE(proaspirer @ 20 Sep, 2006 - 05:24 PM) *
hey can u help me wth lzw encoding...whch i had posted yesterday???

Only when you format it properly with small comments.
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