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Create a function (preferably) or a program that takes an ordered collection and outputs the smallest possible palindrome that starts with the input.
For example:
>>> completePalindrome( [1, 2, 3] )
[1, 2, 3, 2, 1]
>>> completePalindrome( [1, 2, 3, 4, 5, 4, 3, 2] )
[1, 2, 3, 4, 5, 4, 3, 2, 1]
>>> completePalindrome( "race" )
"racecar"
You may choose to support as many of your language's data types as you want to.
Have fun!
theonlygusti
Posted 2017-02-06T08:44:53.140
Reputation: 1 221
2Are we allowed to support just one datatype, eg a string or a list? – Okx – 2017-02-06T08:46:22.407
2[1,2,3,4,5,3,2,1] isnt a palindrome. – Matthew Roh – 2017-02-06T08:46:25.650