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First solution in Clear category for Index Power by Rafal.U
def index_power(array, n):
"""
Find Nth power of the element with index N.
"""
length = len(array)
if n >= length:
return -1
if n < length:
return array[n]**n
return None
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert index_power([1, 2, 3, 4], 2) == 9, "Square"
assert index_power([1, 3, 10, 100], 3) == 1000000, "Cube"
assert index_power([0, 1], 0) == 1, "Zero power"
assert index_power([1, 2], 3) == -1, "IndexError"
Oct. 23, 2016
