LeetCode 2913 | Subarrays Distinct Element Sum of Squares | Java Solution
Description: In this video, we solve **LeetCode 2913 – Subarrays Distinct Element Sum of Squares** using Java.
We'll use a simple brute-force approach with a HashSet to generate all possible subarrays and calculate the square of the number of distinct elements in each subarray.
📌 **Approach:**
- Fix the starting index of each subarray.
- Extend the subarray using a second loop.
- Use a HashSet to track distinct elements.
- Calculate the square of the set size and add it to the answer.
⏱️ **Complexity Analysis:**
- Time Complexity: O(n²) expected
- Space Complexity: O(n)
This is a great problem for practicing nested loops, subarrays, HashSet, and brute-force problem-solving in Java.
If you're preparing for coding interviews or practicing LeetCode problems, subscribe to **Cakot Coding** for more Java, DSA, and interview preparation videos!
👍 Like the video if it helped you, and share your approach in the comments.
#LeetCode #Java #DSA #CodingInterview #HashSet
LeetCode 2913, Subarrays Distinct Element Sum of Squares, LeetCode Java solution, LeetCode Easy, Java DSA, Data Structures and Algorithms, HashSet Java, subarray problems, distinct elements, brute force approach, coding interview preparation, LeetCode problems in Java, Java programming, DSA practice, Cakot Coding Close description
We'll use a simple brute-force approach with a HashSet to generate all possible subarrays and calculate the square of the number of distinct elements in each subarray.
📌 **Approach:**
- Fix the starting index of each subarray.
- Extend the subarray using a second loop.
- Use a HashSet to track distinct elements.
- Calculate the square of the set size and add it to the answer.
⏱️ **Complexity Analysis:**
- Time Complexity: O(n²) expected
- Space Complexity: O(n)
This is a great problem for practicing nested loops, subarrays, HashSet, and brute-force problem-solving in Java.
If you're preparing for coding interviews or practicing LeetCode problems, subscribe to **Cakot Coding** for more Java, DSA, and interview preparation videos!
👍 Like the video if it helped you, and share your approach in the comments.
#LeetCode #Java #DSA #CodingInterview #HashSet
LeetCode 2913, Subarrays Distinct Element Sum of Squares, LeetCode Java solution, LeetCode Easy, Java DSA, Data Structures and Algorithms, HashSet Java, subarray problems, distinct elements, brute force approach, coding interview preparation, LeetCode problems in Java, Java programming, DSA practice, Cakot Coding Close description