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You're given an array of positive numbers. Write an algorithm that arranges these numbers one after another in a way that the end result is a single number and is the largest number possible using those combinations.
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Input: {252, 11, 9, 17545} | |
Output: 92521754511 |
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import java.util.*; | |
import java.lang.*; | |
import java.io.*; | |
/* Name of the class has to be "Main" only if the class is public. */ | |
class Codechef | |
{ | |
public static void main (String[] args) throws java.lang.Exception | |
{ | |
Scanner scanner = new Scanner(System.in); | |
int size = scanner.nextInt(); | |
String input[] = new String[size]; | |
for (int i = 0; i < size; i++) { | |
input[i] = scanner.next(); | |
} | |
sortArray(input); | |
StringBuilder builder = new StringBuilder(); | |
for (int i = 0; i < size; i++) { | |
builder.append(input[i]); | |
} | |
System.out.println(builder.toString()); | |
} | |
public static void sortArray(String[] input) { | |
for (int i = 0; i < input.length; i++) { | |
for (int j = 0; j < input.length - i-1; j++) { | |
if (isLarge(input[j], input[j + 1])) { | |
String temp = input[j]; | |
input[j] = input[j + 1]; | |
input[j + 1] = temp; | |
} | |
} | |
} | |
} | |
public static boolean isLarge(String s1, String s2) { | |
String num1 = s1+s2; | |
String num2 = s2+s1; | |
return num1.compareTo(num2) < 0; | |
} | |
} |
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