✅Day17 | LeetCode 1207. Unique Number of Occurrences | #dailychallenge #leetcode #solution

🌟 Welcome to the Leetcode Daily Challenge Solution! 🚀

Let's break down the provided C++ solution for the uniqueOccurrences function step by step.

🎯 Problem Overview:
The goal is to determine whether the number of occurrences of each value in the given array is unique or not.

🚀 Algorithm Breakdown:

Initialize an unordered_map "mp" to store the frequency of each value in the array.
Initialize an unordered_set "st" to track unique occurrences.
Loop through the array and update the frequency count in the map "mp."
Loop through the frequency map "mp" and insert the occurrences into the set "st."
If at any point an occurrence is already present in the set, return false as it indicates non-unique occurrences.
If the loop completes, return true as all occurrences are unique.
📊 Complexity Analysis:

Time Complexity: O(N), where N is the length of the input array "arr."
Space Complexity: O(N), for the unordered_map and unordered_set.
👍 Explanation:

The algorithm efficiently tracks the frequency of each value using an unordered_map.
The use of an unordered_set ensures that the occurrences are unique.
The loop through the frequency map guarantees the uniqueness of occurrences.
Feel free to explore and modify the solution to further enhance your understanding and coding skills! 🔗✨

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