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Quick Summary

Find all valid ways to cover a continuous date range using exactly one or two different listings.
Prioritize single-listing solutions and only consider split-stays if no full coverage exists.
Ensure combined stays cover the entire range without gaps or overlaps.

What This Tests

Interval boundary analysis and coverage validation
Priority-driven result filtering
Efficient pair matching optimization
Handling constraints without brute-force enumeration

Common Patterns

Greedy

Sorting

Two Pointers

Test Cases

Input

Output

Expected