Which of the following growth-rate functions would correspond to the shortest running time?

cubic

exponential

quadratic

n log n

The shortest running time among the given is N log N.

Explanation:

Among the given growth rate functions the growth rate with N log N is best time complexity .It will be having the shortest running time and very productive for the large data.

Log N growth rate is when the function splits the data into two equal halves.N when it is working on the data one at a time.So the function will be doing the splitting N times.

Exponential growth rate is is the worst as the input grows the exponential function will grow very rapidly.

cubic will grow at the rate of n^3 and quadratic at the rate of n^2.

Hence the answer is N log N.

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