prob : http://codeforces.net/contest/351/problem/C
I've read the editorial but didn't understand the matrix exponentiation part. I've also read the comments but didn't get it. can someone please explain that concept.
Thanks in advance :)
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help needed in understanding a dp problem 351C
prob : http://codeforces.net/contest/351/problem/C
I've read the editorial but didn't understand the matrix exponentiation part. I've also read the comments but didn't get it. can someone please explain that concept.
Thanks in advance :)
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