2.1.8 Sympy

A grade

{ 22, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 41, 43, 45, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 66, 68 }

B grade

{ 54 }

C grade

{ 38, 40, 42, 44, 46 }

F normal fail

{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 59, 60, 61, 62, 63, 64, 65, 67, 69 }

F(-1) timedout fail

{ 13, 70, 71 }

F(-2) exception fail

{ }