Question: Power(y: number; z: non-negative integer) 1. if z==0 then return 1 2. if z is odd then 3. return (Power(y*y, z/2)*y) comment: z/2 is integer

Power(y: number; z: non-negative integer)

1. if z==0 then return 1

2. if z is odd then

3. return (Power(y*y, z/2)*y) comment: z/2 is integer division; note the parentheses

else

4. return Power(y*y, z/2) comment: z/2 is integer division

Draw the Recursion Tree of Power(5,5)

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