Python Practice Example 13

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Problem:Print all "Narcissistic numbers". A "Narcissistic number" is a three-digit number whose sum of the cubes of its digits equals the number itself. For example: 153 is a "Narcissistic number" because 153 = 1 cubed + 5 cubed + 3 cubed.

Program analysis:Use a for loop to control numbers from 100 to 999, decompose each number into units, tens, and hundreds digits.

Program source code:

Example (Python 2.0+)

#!/usr/bin/python # -*- coding: UTF-8 -*- for n in range(100,1000): i = n / 100 j = n / 10 % 10 k = n % 10 if n == i ** 3 + j ** 3 + k ** 3: print n

Example (Python 3.0+)

for n in range(100,1000): i = n // 100 j = n // 10 % 10 k = n % 10 if n == i*i*i + j*j*j + k*k*k: print(n)

The output of the above example is:

153
370
371
407

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