exercism/rust/armstrong-numbers
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.exercism armstrong numbers 2025-12-08 21:57:48 +03:00
src armstrong numbers 2025-12-08 21:57:48 +03:00
tests armstrong numbers 2025-12-08 21:57:48 +03:00
.gitignore armstrong numbers 2025-12-08 21:57:48 +03:00
Cargo.toml armstrong numbers 2025-12-08 21:57:48 +03:00
HELP.md armstrong numbers 2025-12-08 21:57:48 +03:00
README.md armstrong numbers 2025-12-08 21:57:48 +03:00

Armstrong Numbers

Welcome to Armstrong Numbers on Exercism's Rust Track. If you need help running the tests or submitting your code, check out HELP.md.

Instructions

An Armstrong number is a number that is the sum of its own digits each raised to the power of the number of digits.

For example:

  • 9 is an Armstrong number, because 9 = 9^1 = 9
  • 10 is not an Armstrong number, because 10 != 1^2 + 0^2 = 1
  • 153 is an Armstrong number, because: 153 = 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153
  • 154 is not an Armstrong number, because: 154 != 1^3 + 5^3 + 4^3 = 1 + 125 + 64 = 190

Write some code to determine whether a number is an Armstrong number.

Source

Created by

  • @shingtaklam1324

Contributed to by

  • @AndrewKvalheim
  • @coriolinus
  • @cwhakes
  • @eddyp
  • @efx
  • @ErikSchierboom
  • @lutostag
  • @ocstl
  • @petertseng
  • @rofrol
  • @sputnick1124
  • @stringparser
  • @xakon
  • @ZapAnton

Based on

Wikipedia - https://en.wikipedia.org/wiki/Narcissistic_number