Last active
October 10, 2015 23:41
-
-
Save ssinganamalla/b672b4557ffd89789e73 to your computer and use it in GitHub Desktop.
LargestNumber
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
Given a list of non negative integers, arrange them such that they form the largest number. | |
For example, given [3, 30, 34, 5, 9], the largest formed number is 9534330. | |
Note: The result may be very large, so you need to return a string instead of an integer. | |
*/ | |
public class MaxNumber { | |
String getLargestNumber(List<Integer> numbers) { | |
if (numbers == null || numbers.isEmpty()) return ""; | |
List<String> strings = numbers.stream().map(e -> e.toString()) | |
.sorted((o11, o21) -> (o21 + o11).compareTo(o11 + o21)) | |
.collect(Collectors.toList()); | |
return String.join("", strings); | |
} | |
public static void main(String[] args) { | |
MaxNumber maxNumber = new MaxNumber(); | |
List<Integer> integers = Arrays.asList(1, 32, 98, 9, 12); | |
System.out.println(maxNumber.getLargestNumber(integers)); | |
integers = Arrays.asList(50, 2, 1, 9); | |
System.out.println(maxNumber.getLargestNumber(integers)); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment