Problem 1407. Is it an Armstrong number?

An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. For example, 153 is an Armstrong number since 1^3 + 5^3 + 3^3 = 153.

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58.97% Correct | 41.03% Incorrect
Last Solution submitted on Dec 28, 2025

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