deletions | additions       diff --git a/d) Quicksort average complexity.tex b/d) Quicksort average complexity.tex  index a2606cc..c3f08eb 100644  --- a/d) Quicksort average complexity.tex  +++ b/d) Quicksort average complexity.tex 
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\Updownarrow\\  C(n) = (n+1)\left(C(0) + 2H_n - 3 + \frac{3}{n+1}\right)\\  \Updownarrow\\  C(n) = (n+1)2H_n - 2(n+1) - +  3\\ \]