https://codeforces.com/gym/102644/problem/A
for this problem i thought of the recurrence relation and then applied matrix exponentitation, my relation was (1-p)*f(n-1)+p*p*f(n-2);
why is this relation wrong?
https://codeforces.com/gym/102644/problem/A
for this problem i thought of the recurrence relation and then applied matrix exponentitation, my relation was (1-p)*f(n-1)+p*p*f(n-2);
why is this relation wrong?
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Isn't it f(n) = (1-p)f(n-1) + p(1-f(n-1))?