Ad:

C Discussion Thread
Unsolved
Views: 680

Page 1
2
Next

You are currently viewing page 1 of this multi-page discussion thread

Jul 29th, 2009

c project

Expand Post »

i'm tying 2 describe my problem here.plz solve it for me..

1. generate a random number b2in 0 and 1 (r);
2. do t=r*2.5 ;
3. do w= t/100
4. keep track of all t1,t2,t3.... in an array and do the sum S=(t1+t2+t3......) ;
5. repeat steps 1,2,3,4, till S<100
6. store the corresponding w1,w2,w3... in another array/ heap
7. sort them in ascending order.

Similar Threads

Integrate Microsoft Project 2003 in Microsoft SharePoint 2003 Server in Windows NT / 2000 / XP
Wade Robson Project in Geeks' Lounge
ASP .NET web apps/service in VS.NET won't let me name the project? in ASP.NET

atreyeepal1

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

4 posts
since Jul 2009

Permalink

Jul 29th, 2009

Re: c project

Show some effort!

http://www.daniweb.com/forums/announcement118-2.html

yellowSnow

Reputation Points: 651

Solved Threads: 35

Posting Whiz in Training

Offline

201 posts
since Jul 2009

Permalink

Jul 29th, 2009

Re: c project

its not a place that we can solve your homework problem.

still take some hints and show ur effort , the code you have tried so far.Then only you can expect something from this forum.

1)rand() function is used to generate random numbers.

c Syntax (Toggle Plain Text)
int y=rand();
int num=(y-1)/y;
int y=rand();
int num=(y-1)/y;

then you proceed with your next steps...

Thanks,
DP

Dream2code

Reputation Points: 22

Solved Threads: 12

Junior Poster

Offline

144 posts
since Jun 2009

Permalink

Jul 29th, 2009

Re: c project

Click to Expand / Collapse Quote originally posted by Dream2code ...

its not a place that we can solve your homework problem.

still take some hints and show ur effort , the code you have tried so far.Then only you can expect something from this forum.

1)rand() function is used to generate random numbers.
c Syntax (Toggle Plain Text)
int y=rand();
int num=(y-1)/y;
int y=rand(); int num=(y-1)/y;
then you proceed with your next steps...

Thanks,
DP

Num will be always 0

ithelp

Reputation Points: 769

Solved Threads: 128

Banned

Offline

1,910 posts
since May 2006

Permalink

Jul 29th, 2009

Re: c project

Click to Expand / Collapse Quote originally posted by ithelp ...

Num will be always 0

Hey sory i forgot about type casting as i was giving a dummy code.

c Syntax (Toggle Plain Text)
 
int y=rand();int num=(y-1)/y;int y=rand();
float num=(float) (y-1)/y;
int y=rand();int num=(y-1)/y;int y=rand();
float num=(float) (y-1)/y;

it should be type cased to float.
Thanks,
DP

Last edited by Dream2code; Jul 29th, 2009 at 5:42 am.

Dream2code

Reputation Points: 22

Solved Threads: 12

Junior Poster

Offline

144 posts
since Jun 2009

Permalink

Jul 29th, 2009

Re: c project

i tried but everytime it shows 0.00000
and no other value

i tried it another way....
with the srand() function
but all it gives between 0 and 1 is 0
but what i want is 0.1 or 0.2... something like that
how can i get it?
and it's notlike i haven't work with the algo
just i couldn't

atreyeepal1

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

4 posts
since Jul 2009

Permalink

Jul 29th, 2009

Re: c project

Click to Expand / Collapse Quote originally posted by atreyeepal1 ...

i tried but everytime it shows 0.00000
and no other value

i tried it another way....
with the srand() function
but all it gives between 0 and 1 is 0
but what i want is 0.1 or 0.2... something like that
how can i get it?
and it's notlike i haven't work with the algo
just i couldn't

try like this...

c Syntax (Toggle Plain Text)
int y=rand();  //y should be an integer
float num=(float)(y-1)/y; //num should be a float and its typecasted
printf("%d\t%f",y,num);
int y=rand();  //y should be an integer
float num=(float)(y-1)/y; //num should be a float and its typecasted
printf("%d\t%f",y,num);

if you want to know more about random number generators
goto:

http://www.eternallyconfuzzled.com/a..._art_rand.aspx

Last edited by Dream2code; Jul 29th, 2009 at 10:45 am.

Dream2code

Reputation Points: 22

Solved Threads: 12

Junior Poster

Offline

144 posts
since Jun 2009

Permalink

Jul 29th, 2009

Re: c project

> i tried but everytime it shows 0.00000
> and no other value
> i tried it another way....
Look, just post some actual code, and describe what doesn't work in that particular program.

Don't just post "I tried x y and z, and it didn't work".
We can't help you fix your mistakes if you never show us any code to begin with.

Salem

Team Colleague

Reputation Points: 5862

Solved Threads: 950

Posting Sage

Offline

7,164 posts
since Dec 2005

Permalink

Jul 30th, 2009

Re: c project

if i want 2 create 40 random numbers
logically it should be done by a for loop
i tried as follows
but it shows 1 number.
i can't understand my faults

c Syntax (Toggle Plain Text)
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
 
int random(void)
{
	return(1+rand()%3);
}
 
int main(void)
{
	int i;
	srand(time(0));
    for(i=0;i<40;i++);
	printf("the number is %d\n",random());
}
#include<stdio.h>
#include<stdlib.h>
#include<time.h>

int random(void)
{
	return(1+rand()%3);
}

int main(void)
{
	int i;
	srand(time(0));
    for(i=0;i<40;i++);
	printf("the number is %d\n",random());
}

Last edited by John A; Jul 30th, 2009 at 3:05 pm. Reason: added code tags

atreyeepal1

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

4 posts
since Jul 2009

Permalink

Jul 30th, 2009

Re: c project

i tried to the algo as follows
i've changed the algo a bit
1.r=1+rand()%3;
2.t=r*1.25;
3.do w= t/100;
4. keep track of all t1,t2,t3.... in an array /* upto this is ok*/
and do the sum S=(t1+t2+t3......) ;/*from this step i can't do*/
5. repeat steps 1,2,3,4, till S<100
6. store the corresponding w1,w2,w3... in another array/ heap
7. sort them in ascending order.

atreyeepal1

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

4 posts
since Jul 2009

Page 1
2
Next

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in C Forum Timeline: Simple Question regarding char Ptrs

Next Thread in C Forum Timeline: Start Learning C

DaniWeb Message

Cancel Changes

User Name
Password