Computers and Technology, 16.02.2021 01:00 kthe41261

Q2: Ping-pong The ping-pong sequence counts up starting from 1 and is always either counting up or counting down. At element k, the direction switches if k is a multiple of 8 or contains the digit 8. The first 30 elements of the ping-pong sequence are listed below, with direction swaps marked using brackets at the 8th, 16th, 18th, 24th, and 28th elements: Index 1 2 3 4 5 6 7 [8] 9 10 11 12 13 14 15 [16] 17 [18] 19 20 21 22 23 PingPong Value 1 2 3 4 5 6 7 [8] 7 6 5 4 3 2 1 [0] 1 [2] 1 0 -1 -2 -3 Index (cont.) [24] 25 26 27 [28] 29 30 PingPong Value [-4] -3 -2 -1 [0] -1 -2 Implement a function pingpong that returns the nth element of the ping-pong sequence without using any assignment statements. You may use the function num_eights, which you defined in the previous question. Use recursion - the tests will fail if you use any assignment statements. Hint: If you're stuck, first try implementing pingpong using assignment statements and a while statement. Then, to convert this into a recursive solution, write a helper function that has a parameter for each variable that changes values in the body of the while loop.

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Q2: Ping-pong The ping-pong sequence counts up starting from 1 and is always either counting up or c...

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