program problem

[kittu]

the program says
there r 21 match sticks.there r 2 players computer and user.
both pick matchsticks one by one starting with user.
they can pick 1or2or3or4 match sticks at a time.
the player who picks the last match stick losses the match.
condition is that computer has always to win.
can somebody please tell me how can this programm be formed

 

[Michael Mair]

the program says
there r 21 match sticks.there r 2 players computer and user.
both pick matchsticks one by one starting with user.
they can pick 1or2or3or4 match sticks at a time.
the player who picks the last match stick losses the match.
condition is that computer has always to win.
can somebody please tell me how can this programm be formed

This is not a C question.
Ask in a newsgroup where this kind of problems are topical.
If you have problems implementing the programme in standard
C, you are welcome to ask here.

Hints: The computer just has to take a number of match sticks
such that the sum of his and the immediately before drawn
player match sticks is always the same. Solve the problem
for six match sticks first.

Cheers
Michael

 

[Vladimir S. Oka]

kittu opined:

the program says

You mean the homework assignment...

there r 21 match sticks.there r 2 players computer and user.
both pick matchsticks one by one starting with user.
they can pick 1or2or3or4 match sticks at a time.
the player who picks the last match stick losses the match.
condition is that computer has always to win.

There are no words like "r" and "1or2or3or4".

can somebody please tell me how can this programm be formed

Yes, here's a version that takes 1, 2 or 3 sticks. I'm sure you can
easily adapt it to your needs.

<http://www.rskey.org/gene/calcmuseum/25nimb.htm>

At the very least it'll help you search for the solution. Otherwise,
your question is better asked in comp.programming or similar.

PS
Before you complain, you didn't specify the programming language.