Here is a detailed Markdown blog post for the GeeksforGeeks problem "Be Precise":

Be Precise

Slug: be-precise--125634

Difficulty: Easy

Id: 878738

Topic Tags: CPP

Company Tags: None

Summary

Given an integer array, find the number of unique elements in it.

Detailed Explanation

The problem is asking to count the unique elements in a given array. This can be achieved by using a set data structure. Sets automatically remove duplicate elements.

Here's how you can solve this:

1. Initialize an empty set.
2. Iterate over each element in the array.
3. Add each element to the set.
4. The size of the set will give us the number of unique elements in the array.

Optimized Solutions

C++