1. The definiation of narcissistic number
The narcissistic number is also called the pluperfect digital invariant (PPDI) or Armstrong number. A narcissistic number is an n-digit number(n>=3) whose sum of the n-th powers of the digits in each digit is equal to itself (eg: 1^3 + 5^3 + 3^3 =153).
2. Code Requirement
I would like to get the list of narcissistic numbers from 100 to 1000 and print it out.
Function name: narcissisticNum
Input parameter: from, end
Input:100, 1000
Ideal output: 153, 370, 371, 407
3. Code
def narcissisticNum(start, end): # define narcissistic number
for x in range(start, end):
hundred_digit = x // 100 # hundred digits
ten_digit = (x // 10) % 10 # ten digits
one_digit = x % 10 # one digits
num = hundred_digit ** 3 + ten_digit ** 3 + one_digit ** 3 # sum up
if num == x: # condition
print(num)
def main():
print('********** Narcissistic number from 100 to 1000 **********')
narcissisticNum(100, 1000) # call narcissisticNum function
if __name__=="__main__":
main()4. Running Result
