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The k-digit number N is an Armstrong number if and only if the k-th power of
each digit sums to N.
Given a positive integer N, return true if and only if it is an Armstrong
number.
Example 1:
Input: 153
Output: true
Explanation:
153 is a 3-digit number, and 153 = 1^3 + 5^3 + 3^3.
Example 2:
Input: 123
Output: false
Explanation:
123 is a 3-digit number, and 123 != 1^3 + 2^3 + 3^3 = 36.
Note:
1 <= N <= 10^8
Difficulty:
Easy
Lock:
Prime
All contents and pictures on this website come from the Internet and are updated regularly every week. They are for personal study and research only, and should not be used for commercial purposes. Thank you for your cooperation.