..........
T(n)=2T(n/2)+nlogn
you can use modified master's theorem
a=2,b=2 ,k=1 ,p=1
b^k=2^1=2=a,p>-1
T(n)=theta(n^log2base2.(log(n))^(1+1))
=>theta(n.(logn)^2)
https://www.youtube.com/watch?v=lPUhHmgrpik
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