How should I practice Find Lexicographically Smallest String?

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Problem · String

Find Lexicographically Smallest String

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Problem statement

Given a character string, find the lexicographically smallest string of the same length that is greater than the original string, with the condition that no two adjacent characters are the same. If no such string exists, return -1.

The string only contains letters, with 'a' being the smallest and 'z' being the largest.

Function

findLexicographicallySmallestString(s: String) → String

Complete the function findLexicographicallySmallestString in the editor.

findLexicographicallySmallestString has the following parameter:

String s: the original string

Returns

String: the lexicographically smallest string that meets the condition or "-1" if no such string exists

Examples

Example 1

s = "abbcd"return = "abcab"

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Problem statement

Function

Examples

Example 1

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