Swap nodes in Pairs | #leetcode 24 | #algorithms | #computerscience | #interview

Swap nodes in Pairs

Complexity:
- Time: O(N)
- Space: O(1)

Problem statement:

Solution code:

Swap nodes in K-group:

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Swap nodes in Pairs

Complexity:
- Time: O(N)
- Space: O(1)

Problem statement:

Solution code:

Swap nodes in K-group: