Build a tiny version of the Unix sort command. Given a list of lines, return them sorted in ascending order by character code (like LC_ALL=C sort: uppercase letters come before lowercase ones, "Zebra" before "apple", and an empty line comes first), joined by newline characters (\n). Duplicates are all kept. If the list is empty, return the empty string.
Function signature:
def sortLines(self, lines: List[str]) -> str:
Example:
Input: lines = ["banana", "apple", "cherry"] Output: "apple\nbanana\ncherry" When printed: apple banana cherry
Use Python's built-in
sorted for ascending order, then join with "\n".
The full solution:
class Solution:
def sortLines(self, lines):
sortedLines = sorted(lines)
return "\n".join(sortedLines)
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