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findHappyNumbers.py
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findHappyNumbers.py
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#!/usr/bin/python
import argparse
def digitSum( num ):
sum = 0
while num != 0:
digit = num%10
sum += digit*digit
num = num/10
return sum
def happyNumbers( low, high ):
is_repeated = False
lst = []
happyNums = []
for i in range(low, high+1):
nextNum = i
is_repeated = False
while not is_repeated:
nextNum = digitSum(nextNum)
if nextNum == 1:
is_repeated = True
happyNums.append(i)
elif nextNum in lst:
is_repeated = True
else:
lst.append(nextNum)
return happyNums
def main():
parser = argparse.ArgumentParser()
parser.add_argument('-ln', '--lnum', nargs=1, help="From Number", type=int, default='1')
parser.add_argument('-hn', '--hnum', nargs=1, help="To Number", type=int, default='100')
args = parser.parse_args()
if isinstance(args.lnum, list):
lownum = args.lnum[0]
else:
lownum = args.lnum
if isinstance(args.hnum, list):
highnum = args.hnum[0]
else:
highnum = args.hnum
print (happyNumbers( lownum, highnum ))
if __name__ == "__main__":
main()