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\begin{algorithm}[H]\caption{Quick Sort algorithm}\label{alg:sampling1}\begin{algorithmic}[1]\Function{QSort}{$l,r$}\If{$l\geqr$}\State\textbf{exit}\EndIf\Statepick a random element in$A[l], ..., A[r]$as$pivot$\State$i=l, j=r$\While{$i\leqj$}\While{$A[i] < pivot$}$...