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x1001000/202-happy-number.py

Created February 3, 2022 10:43
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202-happy-number.py
class Solution:
def isHappy(self, n: int) -> bool:
cycle = []
while n not in cycle and n != 1:
cycle.append(n)
n = sum(map(lambda x: int(x)**2, str(n)))
return True if n == 1 else False
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