An array represents the state of a strip of 7 smart LED indicators. The indicators can be either red or blue.

Subroutine	Explanation
`FLIP(n)`	If the LED at index $n\,$ is `red`, it is set to `blue`. If it is `blue`, it is set to `red`.
`COPY_NXT(n)`	The LED at index $n\,$ is set to the same colour as the LED at index ( $n + 1$ ).
`CLEAR_BETWEEN(m, n)`	All the LEDs between index $m\,$ and index $n$ (but not including $m\,$ and $n$ ) are set to `blue`.

0	1	2	3	4	5	6
blue	red	blue	red	red	blue	red

What will the array of LEDs become after the following algorithm is executed?

k ← 3
FLIP(k)
COPY_NXT(k - 2)
FLIP(k + 2)

Write your final answer in the table below:

0	1	2	3	4	5	6

An array represents the state of a strip of 7 smart LED indicators. The indicators can be either red or blue.

Subroutine	Explanation
`FLIP(n)`	If the LED at index $n\,$ is `red`, it is set to `blue`. If it is `blue`, it is set to `red`.
`COPY_NXT(n)`	The LED at index $n\,$ is set to the same colour as the LED at index ( $n + 1$ ).
`CLEAR_BETWEEN(m, n)`	All the LEDs between index $m\,$ and index $n$ (but not including $m\,$ and $n$ ) are set to `blue`.

0	1	2	3	4	5	6
blue	red	blue	red	red	blue	red

What will the array of LEDs become after the following algorithm is executed?

k ← 3
FLIP(k)
COPY_NXT(k - 2)
FLIP(k + 2)

Write your final answer in the table below:

0	1	2	3	4	5	6

Representing algorithms

Representing algorithms Questions