Unique element in an array

[revathi17]

Hello there,

Given an array int a[] = {10,11,12,13,10,11}. I want to print out the unique elements and the count of duplicates in this array.

Can someone help me find this. I am kind of stuck in the logic.


Thanks,
-R

[CaptainMorgan]

Some psuedo...

Code:

1) read the array and have method available for searching the array
  a) if a number matches any other number
     - mark it for non-printable
     - increase the counter
2) Output the printable number and the counter

I suspect there are quite a few classes you may be able to use for your operations if the specifications of your program are not limited to just a regular array. ArrayList comes to mind.

[wsaryada]

You can use the Set (HashSet) class to remove the duplicate items in the array.

1. Create an array
2. Convert it to a List
3. Create a Set from the List
4. When you get the set, convert it back to array.

After the step you'll have the duplicate element removed from the list.