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Clear and short solution in Clear category for Min and Max by AntoniGoldstein
def min(*args, key=lambda x: x):
ret = None
for elem in args[0] if len(args) == 1 else args:
if ret is None or key(elem) < key(ret):
ret = elem
return ret
def max(*args, key=lambda x: x):
ret = None
for elem in args[0] if len(args) == 1 else args:
if ret is None or key(elem) > key(ret):
ret = elem
return ret
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert max(3, 2) == 3, "Simple case max"
assert min(3, 2) == 2, "Simple case min"
assert max([1, 2, 0, 3, 4]) == 4, "From a list"
assert min("hello") == "e", "From string"
assert max(2.2, 5.6, 5.9, key=int) == 5.6, "Two maximal items"
assert min([[1, 2], [3, 4], [9, 0]], key=lambda x: x[1]) == [9, 0], "lambda key"
Dec. 4, 2014
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