Please correct my code

#1
#2

Hello @Lovishbansal,

I have corrected your code:


Refer to comments.

Hope, this would help.
Give a like if you are satisfied.

#3

Sir why there is no need to swap again (Backtrack)

#4

Hey @Lovishbansal,

Because that will change the order of the elements causing non-lexicographical order of strings

Example:
cabd
With swap, Output:
abcd
abdc
acbd
acdb
adcb
adbc
bacd
badc
bcad
bcda
bdca
bdac

Hope, it is clear now.

#5

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