Practice30Create account

A word-and-number arrangement machine rearranges any input line in steps. In each step two shifts happen together: the largest number that has not already been shifted in an earlier step is taken out and placed at the extreme left end of the line, and at the same time the word that comes last in alphabetical order among the words not already shifted in an earlier step is taken out and placed at the extreme right end of the line. All the remaining elements keep their relative order, and the machine stops when no further shift is possible.
Input: moon leaf 27 65 kiwi 43 harp 91.
Which of the following is Step 2 of the above arrangement?

Competition practiceInput-Output
  • A65 91 27 kiwi 43 harp moon leaf
  • B43 65 91 27 harp moon leaf kiwi
  • C91 leaf 27 65 kiwi 43 harp moon
  • D43 27 moon leaf 65 91 harp kiwi

Step-by-Step Solution

Work the machine forward from the input. Step 1: 91 leaf 27 65 kiwi 43 harp moon. Step 2: 65 91 27 kiwi 43 harp moon leaf. Hence the line shown is Step 2.
Answer: A) 65 91 27 kiwi 43 harp moon leaf

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Input-Output practice questions

More Input-Output practice

A word-and-number arrangement machine rearranges any input line in steps. In each step…A word-and-number arrangement machine rearranges any input line in steps. In each step…A word-and-number arrangement machine rearranges any input line in steps. In each step…A word-and-number arrangement machine rearranges any input line in steps, alternating…A word-and-number arrangement machine rearranges any input line in steps, alternating…