Question: Time efficiency analysis. Algorithm (A[0 . n 1]) // Input: Array A[0 . n 1] of numbers, n>3 sum 0 for i = 1 to

Time efficiency analysis.

Algorithm(A[0 . n 1]) // Input: Array A[0 . n 1] of numbers, n>3

sum 0

for i = 1 to n 2 do

for j = i + 1 to n - 1 do

sum sum + 2*A[i]*A[j]

return sum

The basic operation of this algorithm is multiplication.

(a) Compute total number of basic operations.

(b) What is efficiency class of this algorithm (Big-Theta)?

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