Question: Suppose A is an n-by- n SPD matrix with e nonzero elements, represented in a sparse compressed form. Which of the following is the tightest

Suppose A is an n-by- n SPD matrix with e nonzero

Suppose A is an n-by- n SPD matrix with e nonzero elements, represented in a sparse compressed form. Which of the following is the tightest possible bound on the runtime of one single iteration of Conjugate Gradient? O(n)O(e)O(n2)O(ne)O(n3)

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