@sravanreddy001
suppose u have to calulate A^n u can calculate in O(d^3*log(n));
d is dimesion of matrixl
while (n)
{
if (n&1) mul(ans, A, d);
mul(A, A, d);
n >>=1;
}
--
Anshuman Mishra
IIIT Allahabad
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