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Swap Nodes in Pairs
Bookmark
Recursive
Iterative Dummy
Input
Even length
Odd length
Single node
Empty list
Three pairs
Custom
values
=
[1, 2, 3, 4]
1
2
3
4
1
2
3
4
head
1
2
3
4
head
1
2
3
4
first
second
1
2
3
4
first
second
1
2
3
4
first
second
1
2
3
4
first
second
1
2
3
4
first
second
1
2
3
4
1
2
3
4
1
2
3
4
algo
master
.
io
Step:
Start: swap nodes in pairs recursively
0 / 11
Input
Even length
Odd length
Single node
Empty list
Three pairs
Custom
values
=
[1, 2, 3, 4]
0 / 11
algo
master
.
io
Step:
Start: swap nodes in pairs recursively
