LeetCode 1207 - Unique Number of Occurrences | C++ Solution | Easy Explanation

🚀 LeetCode Problem #1207: Unique Number of Occurrences

In this video, I solve the Unique Number of Occurrences problem using C++ and explain the approach step by step.

📌 Problem:
Given an array of integers arr, return true if the number of occurrences of each value in the array is unique, or false otherwise.

💻 Language Used:
C++

🎯 Topics Covered:

* Hash Maps (unordered_map)
* Sets (unordered_set)
* Frequency Counting
* Time Complexity Analysis

LeetCode Problem:
https://leetcode.com/problems/unique-number-of-occurrences/

✅ Approach Used:
Hash Map + Set

⏱️ Time Complexity:
O(n)

📦 Space Complexity:
O(n)

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#leetcode #hashmap #unorderedmap #cpp #dsa #leetcode1207 #codinginterview #programming

Видео LeetCode 1207 - Unique Number of Occurrences | C++ Solution | Easy Explanation канала Sai Janjirala