Deluge | Program to print duplicates from a list of integers

Write a Deluge script to identify and print duplicate values in a list of numbers.

Input Example: [5, 3, 8, 5, 2, 8, 1]
Expected Output: 5, 8

Please find the below Deluge Code:-

// Step 1: Input list
list_v = [5, 3, 8, 5, 2, 8, 1];
// Step 2: Initialize an empty map and list for duplicates
appear_occurence_map = map();
duplicate_list = list();
// Step 3: Count occurrences of each number
for each number in list_v
{
    if(appear_occurence_map.containsKey(number))
    {
        appear_occurence_map.put(number, appear_occurence_map.get(number) + 1); // Increment count
    }
    else
    {
        appear_occurence_map.put(number, 1); // Add number with count 1
    }
}
// Step 4: Identify duplicates
for each number in appear_occurence_map.keys()
{
    if(appear_occurence_map.get(number) > 1) // Check if count > 1
    {
        duplicate_list.add(number); // Add to duplicate list
    }
}
// Step 5: Print the duplicates
info "Duplicate values: " + duplicate_list;

Output: 5, 8