How should I practice Shortest Suffix to Form a Palindrome?

Start by reading the full statement, solve the visible examples, then compare the pattern against related Bloomberg LP phone screen problems in FastPrep.

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Shortest Suffix to Form a Palindrome

Bloomberg LP● MediumNEW GRADPHONE SCREEN

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Problem statement

Return the shortest string that can be appended to text so the result is a palindrome. If text is already a palindrome, return the empty string.

Function

shortestPalindromeSuffix(text: String) → String

Examples

Example 1

text = "banana"return = "b"

Appending b creates bananab.

Constraints

0 <= text.length <= 2000.
The text contains lowercase English letters.