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3 3 1 10.0 0.9 1.1 1 2 3 3 2 10.0 0.9 1.1 1 1 1 3 3 10.0 0.9 1.1 1 1 100.0
20.666667 10.000000 1000.000000
Info: 本題輸出為浮點數，絕對或相對誤差 1e-6 以下視為正確
Migrated from old NTUJ.