1.

__________ comparisons required to sort the list 1, 2, 3…….n using insertion sort.$

A. (n<sup>2</sup> + n + 2) / 2
B. (n<sup>3</sup> + n – 2) / 2
C. (n<sup>2</sup> + n – 2) / 2
D. (n<sup>2</sup> – n – 2) / 2
Answer» D. (n<sup>2</sup> ‚Äö√Ñ√∂‚àö√ë‚àö¬® n ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2) / 2


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