bad: help me urgent just simple assert.h prob

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#include<assert.h>
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int main (void)
{
int a, b, cnt=0, i;
for(i=0; i <1000; ++i){
a= rand() % 3 + 1;
b= rand() % 30 + 1;
if (b - a <= 1)
continue;
assert (b - a > 2);
printf("count=%d\n", ++cnt);
}
return 0;
}

that's the program and i cant understand how it works.please help me answer these questions too, 1.what values of a and b cause the assertion to fail. 2. how many times do u expect to go through the loop? number of times the program is executed? and the number of iterations produced per execution of the program?
guys please help me thanks...

At which part are you having trouble understanding the code?

We will not give answers to questions that appear to come directly from homework. There is no evidence to support that us doing the work helps you learn the material.

because i have tried running the program several times using two different computers. one gave me result of count=51, the other gave count=2. i want to understand why it gives that result? and how can i track the number of times the program is executed when i dont know how the function rand() works. i just wanna know how the function rand() works.Any site you know that can explain this? i have searched the internet about articles about rand(), assert.h but no explanation about this all i see are codes too. i have homework to make a program that requires random generated numbers, so while researching about it i saw the exercise above under assertion and rand chapter. but also is not helping me. i hope you can help me. thanks

rand() has nothing to do with assert.h. rand() returns a random (well, pseudorandom) number. As a result, every run of the program will get different results. Take a look at the following documentation: http://man.linuxquestions.org/?query...pe=2&section=3

but i wonder why if i use the same computer it gives the same number/ result all the time. always count=51 when i use linux and alwys count=2 when i use gcc compiler.anyway thanks i'll take a look at the documentation. thanks

It may be giving you the same result because the random number generator has not been 'seeded' at the beginning of each run.

hi can u tell me please what "seeded" means.. and is it correct that two computer gives me differet result? which is correct?
thanks

Because it is RANDOM, you will always get different results. "Seeding" is setting up a random number generator. Have you read up on random number generators?

Also, please stop posting the same question in multiple forums. It is rude and unneccessary.

oh ok sorry about posting same question in multiple forums. i read some rand() topics but none of it tackle random number generator. that's why i'm asking for your help. i just want to understand how random number generator works so i can answer the problem above. thanks

Did any of the following articles come up in your searches?

http://eternallyconfuzzled.com/articles/rand.html
http://www.codingforums.com/showthread.php?t=71436
http://en.wikipedia.org/wiki/Random_number_generator
http://en.wikipedia.org/wiki/Pseudo-...mber_generator
http://en.wikipedia.org/wiki//dev/random
http://www.linuxquestions.org/questi...ghlight=rand+c
http://www.linuxquestions.org/questi...ghlight=rand+c
http://www.linuxquestions.org/questi...ghlight=rand+c
http://www.linuxquestions.org/questi...ghlight=rand+c
http://www.linuxquestions.org/questi...ghlight=rand+c

no. ok thanks for the links