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To solve it take care of the descending ones too. A counter case to show we also have to take the descending one.
Suppose if the array is-:
3 4 2 5 1
then the output should be 2.
5 4 2 3 1(swap 5 and 3)
5 4 3 2 1(swap 2 and 3)
Hence the answer will be 2.
Lily's Homework
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To solve it take care of the descending ones too. A counter case to show we also have to take the descending one. Suppose if the array is-: 3 4 2 5 1 then the output should be 2. 5 4 2 3 1(swap 5 and 3) 5 4 3 2 1(swap 2 and 3) Hence the answer will be 2.