user id suffux

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wk
New poster
Posts: 7
Joined: Tue Jul 20, 2004 4:49 am

user id suffux

Post by wk »

What is that suffix thingy?
It was not mentioned anywhere during registration, yet
the submission tool asks for id WITH the suffix.
My code is rejected due to invalid user id...
What gives?
abishek
Experienced poster
Posts: 131
Joined: Mon Dec 15, 2003 5:41 am

Post by abishek »

your user id when you register is given as
(for example)
12345AB
these two letters AB are secret! and must be known only to you. This is done inorder to prevent other people from submitting in your account. Thus you need these to submit.
sohel
Guru
Posts: 856
Joined: Thu Jan 30, 2003 5:50 am
Location: New York

dooi numberi

Post by sohel »

But if someone is very evil minded and has got a lot of time then it takes at most 26^2 submission to find the user id suffix of a particular account.

Some off-topic information :
I actually tried to find out the suffix of someone ( I keep the name hidden here ) but after about 20 submissions I got really bored and decided otherwise. :wink:
shamim
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Posts: 498
Joined: Mon Dec 30, 2002 10:10 am
Location: Bozeman, Montana, USA

Post by shamim »

Well Sohel, 26^2 = 676.

If you get bored by trying 20, then try 20 more the next day. This way it will take at most 34 days to find the suffix. I am sure you can improve on the figure of 20. You could even have accomplices to share the job among yourselves.

Of course some experts can write a robot program to do the checking, this way it may take at most few minutes. I hope no one is lifeless enough to make such attempts. :P
abishek
Experienced poster
Posts: 131
Joined: Mon Dec 15, 2003 5:41 am

Post by abishek »

actually the expected no of days of success is only 17!
Per
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Location: Sweden

Post by Per »

355687428096000 is quite a lot.

(sorry, couldn't resist it :))
abishek
Experienced poster
Posts: 131
Joined: Mon Dec 15, 2003 5:41 am

Post by abishek »

well actually what is that number???
Larry
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Post by Larry »

17!
abishek
Experienced poster
Posts: 131
Joined: Mon Dec 15, 2003 5:41 am

Post by abishek »

oh! :D
shamim
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Posts: 498
Joined: Mon Dec 30, 2002 10:10 am
Location: Bozeman, Montana, USA

Post by shamim »

abishek wrote:actually the expected no of days of success is only 17!
How is it 17! :o
abishek
Experienced poster
Posts: 131
Joined: Mon Dec 15, 2003 5:41 am

Post by abishek »

you must ignore the !, is only 17
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