leetcode202-happy-number.py

classSolution:
defisHappy(self, n: int) ->bool:
unhappy=set()
whilennotinunhappyandn!=1:
unhappy.add(n)
n=self.GetSquareSum(n)
returnn==1

defGetSquareSum(self, n: int) ->bool:
sum0=0
whilen>0:
r=n-int(n/10)*10
n=int(n/10)
sum0+=r*r
returnsum0

sol=Solution()
print(sol.isHappy(19))