Need HELP HackerRank problem — Swap Permutation

Правка en3, от memset0, 2016-10-07 09:58:18

codeforces is full of intelligent people... :D

Can anyone please explain the process , how to solve this problem ???

I read the editorial but that was unclear to me :(

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en3 Английский memset0 2016-10-07 09:58:18 58 Tiny change: 'ation) ???' -> 'ation) ???\n\n**I read the editorial but that was unclear to me :(**'
en2 Английский memset0 2016-10-07 09:54:21 15
en1 Английский memset0 2016-10-07 09:53:33 223 Initial revision (published)