Cloud Cover — ORAC

Time Limit	Memory Limit	Input File	Output File
1 second	256 MiB	`cloudin.txt`	`cloudout.txt`

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Problem info

- Subtask 1 (20 points) has 17 cases.
- Subtask 2 (10 points) has 11 cases.
- Subtask 3 (10 points) has 10 cases.
- Subtask 4 (20 points) has 29 cases.
- Subtask 5 (15 points) has 44 cases.
- Subtask 6 (25 points) has 61 cases.