K largest elements of a data set

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def topK(lijst:list,k:int): """ >>> topK([1,5,7,7,5,4,2,3,6,9,9,1,12,3,21,5,4,1,2,36,5,4,1,2,3,6,54,6,8,5,2,6,5,1,5,8,5,10,1,2,5,4,8,2,5,12],10) [8, 8, 9, 9, 10, 12, 12, 21, 36, 54] >>> topK([1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],10) [6, 7, 8, 9, 10, 11, 12, 13, 14, 15] >>> topK([15,14,13,12,11,10,9,8,7,6,5,4,3,2,1],10) [6, 7, 8, 9, 10, 11, 12, 13, 14, 15] >>> topK([1,5,5,7,5,3,5,8,6,9],10) [1, 3, 5, 5, 5, 5, 6, 7, 8, 9] """