Dsa
Intervals
Warm-up
Flight Schedule Checker
You are planning a flight schedule for an airport and must ensure that no two flights overlap. Each flight is represented by a start and an end time. Your task is to determine if all flights can be scheduled without overlap. Return 'Safe' if no overlaps occur, otherwise return 'Unsafe'.
Input format:
A single line with space-separated integers indicating the start and end times of flights (e.g., '1 4 2 5 3 6').
Output format:
Return 'Safe' or 'Unsafe'.
Example:
Input:
1 4 2 5 3 6
Output:
Unsafe
Key concepts
intervalsflightsscheduling
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