mobile typing isn't scored — practice only
def memoize(fn):
Python · general · type the snippet below to practice
def fib(n):
a, b = 0, 1
for _ in range(n):
a, b = b, a + b
return a
about this snippet
This is the memoize snippet in Python — 8 lines of real Python code that exercises common patterns you'll see in production. DeveloperType scores you on net WPM and accuracy and only counts runs above 95% accuracy on the leaderboard, so practice rewards precision, not speed alone.
view source (8 lines)
def memoize(fn):
cache = {}
def wrapper(*args):
if args not in cache:
cache[args] = fn(*args)
return cache[args]
return wrapper
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