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  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
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  5. 5 Paid Test Task and Follow-Up Interview
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Problems > Minimum Swaps to Sort > Editorial

Minimum Swaps to Sort — Solution & Editorial

Back to the Problem

Decompose the permutation into cycles; a cycle of length L needs L−1 swaps, so the answer is N minus the number of cycles.

Complexity: O(N)