Re: Generating random numbers
Re: Generating random numbers
- Subject: Re: Generating random numbers
- From: Graham Cox <email@hidden>
- Date: Wed, 5 Aug 2009 21:16:16 +1000
On 05/08/2009, at 8:44 PM, Mahaboob wrote:
I need to produce 15 random numbers between 1 to 16 without
repeating any
number. I used the code like
int i,j;
for(i=0;i<15;i++){
j =random() % 15 +1;
NSLog(@"No: %d => %d \n",i,j);
srandom(time(NULL)+i);
}
But some numbers are repeating.
How can I do it without repeating the numbers?
A truly random number may be repeated. If it's guaranteed not to, it's
not random.
Maybe you're really just trying to randomly order a number of objects?
One way to do that is to assign a random number to each object and
sort the list on the random number.
--Graham
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