Biggest Number Formation Problem

Your task is to construct the largest number possible by concatenating each of the provided positive integers in the array exactly once.

Input:

Integer T denoting the number of test cases, followed by T test cases. Each test case has: An integer N which is the number of elements in the array. N space-separated positive integers representing the array elements.

Output:

For each test case, output the largest possible number formed by concatenating the array elements.

Example:

Input:

1 3 9 98 7

Output:

9987

Constraints:

1

Question

Biggest Number Formation Problem

Your task is to construct the largest number possible by concatenating each of the provided positive integers in the array exactly once.

Input:

Integer T denoting the number of test cases, followed by T test cases.
Each test case has:
An integer N which is the number of elements in the array.
N space-separated positive integers representing the array elements.

Output:

For each test case, output the largest possible number formed by concatenating the array elements.

Example:

Input:

1
3
9 98 7

Output:

Constraints:

1 <= T <= 10
1 <= N <= 1000
0 <= A[i] <= 10⁹
Time Limit: 1 sec

Note:

No output needs to be printed from your end as it is managed. Focus on implementing the function.

Accepted Answer

Construct the largest number by concatenating positive integers in the array exactly once.

Sort the array of integers in a way that the concatenation of the numbers forms the largest possible number.
Use a custom comparator function to sort the numbers based on their concatenated values.
Join the sorted array elements to form the final largest number.

Biggest Number Formation Problem

Input:

Output:

Example:

Input:

Output:

Constraints:

Note:

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