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First solution in Clear category for Min and Max by ignalion
def min(*args, **kwargs):
key = kwargs.get("key", lambda x: x)
# To avoid repeating myself, take iterable if only one arg provided
if len(args) == 1:
args = args[0]
res = None
for item in args:
if res is not None:
if key(item) < key(res):
res = item
else:
res = item
return res
def max(*args, **kwargs):
key = kwargs.get("key", lambda x: x)
# To avoid repeating myself, take iterable if only one arg provided
if len(args) == 1:
args = args[0]
res = None
for item in args:
if res is not None:
if key(item) > key(res):
res = item
else:
res = item
return res
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"
Sept. 4, 2014
