added assertion that n >= 0

This commit is contained in:
jonny rhea
2019-01-10 18:09:58 -06:00
parent 1c42a9daca
commit d2eca73482

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@@ -1097,6 +1097,7 @@ def integer_squareroot(n: int) -> int:
"""
The largest integer ``x`` such that ``x**2`` is less than ``n``.
"""
assert n >= 0
x = n
y = (x + 1) // 2
while y < x: