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Annchelijk

A palindrome is a string whose reversal is identical to the string. For instance, the strings: POP, CIVIC, RADAR, and REVIVER are palindromes. How many different strings over uppercase alphabet (A to Z) of length 9 are not palindromes?

  • one year ago
  • one year ago

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  1. UnkleRhaukus
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    every nine character palindrome is definable by the first 5 characters

    • one year ago
  2. UnkleRhaukus
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    how many different, 5 character strings are there?

    • one year ago
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