Day 84: LeetCode Daily Challenge: LeetCode 3130 - Find All Possible Stable Binary Arrays II #coding

You are given three integers zero, one, and limit. A binary array is stable if it contains exactly zero number of 0s and one number of 1s, and no subarray longer than limit contains only 0s or only 1s. Return the total number of such stable arrays modulo 10⁹+7.

Approach:
• Use Dynamic Programming.
• dp[i][j][0] = number of arrays with i zeros and j ones ending with 0.
• dp[i][j][1] = number of arrays with i zeros and j ones ending with 1.
• Build the DP by extending previous states while ensuring consecutive 0s or 1s do not exceed limit.

Time Complexity: O(zero × one)
Space Complexity: O(zero × one)

If you’re serious about learning Data Structures & Algorithms the right way, you’re in the right place.

On AlgoXploration, I focus on:
Building strong DSA fundamentals
Solving problems step by step
Explaining why a solution works, not just how
Helping you stay consistent with practice

📚 DSA Playlists (Structured Order)
▶️ DSA Problems:
https://www.youtube.com/playlist?list=PL4of1palJ6mz0B9KYBqTgCVoPQZjo09nB
▶️ Queue:
https://www.youtube.com/playlist?list=PL4of1palJ6mw6sQUbmI5GbbJP5Li8dzs5
▶️ Stack:
https://www.youtube.com/playlist?list=PL4of1palJ6mx4SBU23vl6-XD1qJ1LiCeg
▶️ Linked List:
https://www.youtube.com/playlist?list=PL4of1palJ6mxQ6JfmpgSAHk5587uW-6gJ
▶️ Binary Search:
https://www.youtube.com/playlist?list=PL4of1palJ6mz7KtZXZmFkYrbGr6W4NfO2
▶️ Recursion:
https://www.youtube.com/playlist?list=PL4of1palJ6mzU09AQ4gsLaxRUk7y_TnN2
▶️ Hashing:
https://www.youtube.com/playlist?list=PL4of1palJ6mz2wl5zyM0ejC7TJ5XZ1jc-
▶️ Bit Manipulation:
https://www.youtube.com/playlist?list=PL4of1palJ6mxTFdHNr4C6dDPoAzoTgLj
▶️ Two Pointer Technique:
https://www.youtube.com/playlist?list=PL4of1palJ6myu4hsLtA2OaklXewaFmCG5
▶️ Arrays:
https://www.youtube.com/playlist?list=PL4of1palJ6mxnRW2shnnTUrAXGiijYY2h
▶️ Sorting:
https://www.youtube.com/playlist?list=PL4of1palJ6mxS2uhlO0I9NvjWQ26KkgqB

🤝 Join the DSA Community
📢 Telegram (Discussion | Notes | Daily Quizzes):
👉 https://t.me/algoxploration_hub
Ask doubts, participate in quizzes, and stay consistent with DSA practice.

👨‍💻 Coding Profiles
💻 LeetCode:
https://leetcode.com/u/sameervhatkar/
💻 GitHub:
https://github.com/sameervhatkar

🔗 Let’s Connect
If you’d like to connect professionally, I’m available on LinkedIn as well:
👉 https://www.linkedin.com/in/sameer-vhatkar/

Learn DSA the right way — one concept at a time. 🚀

┏┓┳┳┳┓┏┓┏┓┳┓┳┳┓┏┓
┗┓┃┃┣┫┗┓┃ ┣┫┃┣┫┣
┗┛┗┛┻┛┗┛┗┛┛┗┻┻┛┗┛
┏┓┓ ┏┓┏┓┏┓┏┓┏┓┓ ┏┓┳┓┏┓┏┳┓┳┏┓┳┓
┣┫┃ ┃┓┃┃ ┃┃ ┃┃┃ ┃┃┣┫┣┫ ┃ ┃┃┃┃┃
┛┗┗ ┗┛┗┛┗┛┗┛┣┛┗ ┗┛┛┗┛┗ ┻ ┻┗┛┛┗

#DynamicProgramming #BinaryArray #LeetCodeDailyChallenge

Видео Day 84: LeetCode Daily Challenge: LeetCode 3130 - Find All Possible Stable Binary Arrays II #coding канала AlgoXploration