def findMinAndMax(L): min_L = max_L = 0 if len(L) == 0: min_L = max_L = None elif len(L) == 1: min_L = max_L = L[0] else: for x in range(len(L) - 1): if L[x] > L[x + 1]: temp = L[x] L[x] = L[x + 1] L[x + 1] = temp min_L = L[0] max_L = L[-1] return min_L, max_L
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