Show that the greedy algorithm for making change for n cents using quarters, dimes, nickels, and pennies has O(n) complexity measured in terms of comparisons needed. procedure change (c1, c2, . . . , Cr : coin denominations; n : a positive integer) for i := 1 to r di := 0 { di counts the coins of denomination c; used } while n > Ci d; := d; +1 { add a coin of denomination c; } n := n - ci { d; is the umber of coins of denomination c; in the change for i = 1,2, . . . , r}

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Q: Po.

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Q: Algorithm

A: A

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