big integer - subtraction
The problem wants you just to subtract two positive integers that can be up to 10000 ( I think ) digits.
If you have a big integer library, that's a simple work, otherwise you have to implement subtraction yourself, as I did.
I describe my solution or give some hints about the solution for algorithmic problems used in ICPC or online sites for programming contests.
Thursday, August 27, 2009
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