Problem Description
You are given an array of logs. Each log is a space-delimited string of words, where the first word is the identifier.
There are two types of logs:
- Letter-logs: All words (except the identifier) consist of lowercase English letters.
- Digit-logs: All words (except the identifier) consist of digits.
Reorder these logs so that:
- The letter-logs come before all digit-logs.
- The letter-logs are sorted lexicographically by their contents. If their contents are the same, then sort them lexicographically by their identifiers.
- The digit-logs maintain their relative ordering.
Return the final order of the logs.
Problem Constraints
1 <= logs.length <= 1000
3 <= logs[i].length <= 1000
All the tokens of logs[i] are separated by a single space.
logs[i] is guaranteed to have an identifier and at least one word after the identifier.
Input Format
The first argument is a string array A where each element is a log.
Output Format
Return the string array A after making the changes.
Example Input
Input 1:
A = ["dig1-8-1-5-1", "let1-art-can", "dig2-3-6", "let2-own-kit-dig", "let3-art-zero"]
Input 2:
A = ["a1-9-2-3-1","g1-act-car","zo4-4-7","ab1-off-key-dog","a8-act-zoo"]
Example Output
Output 1:
["let1-art-can","let3-art-zero","let2-own-kit-dig","dig1-8-1-5-1","dig2-3-6"]
Output 2:
["g1-act-car", "a8-act-zoo", "ab1-off-key-dog", "a1-9-2-3-1", "zo4-4-7"]
Example Explanation
Explanation 1:
The letter-log contents are all different, so their ordering is "art-can", "art-zero", "own-kit-dig".
The digit-logs have a relative order of "dig1-8-1-5-1", "dig2-3-6".
Explanation 2:
The array has been sorted restricted to the conditions given.
NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified.
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