2.1.3 Maple

A grade

{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 21, 22, 25, 26, 27, 28, 29, 30, 32, 33, 35, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 60, 61, 63, 64, 67, 68 }

B grade

{ 11, 13, 16, 19, 24, 31, 38, 62 }

C grade

{ 10, 15, 17, 18, 20, 34, 36, 37, 39, 40, 52, 57, 58, 59 }

F normal fail

{ 41 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }