Next permutations

#1

How we know after applying next_permutaion() that what is the order?

#2

The order is lexographical. If the array is - 1 2 3 4 5
next_permutation will give - 1 2 3 5 4 and so on till 5 4 3 2 1

#3

Is this is the order for 1,2,3,4,5
1,2,3,5,4
1,2,5,3,4
1,5,2,3,4
5,1,2,3,4
5,1,2,4,3
5,1,4,2,3
5,4,1,2,3
5,4,1,3,2
5,4,3,1,2
5,4,3,2,1

#4


Please run this code. This is the order.

#5

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