Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX

🔥 Can you spot all valid binary substrings?
Most developers mess up Leetcode 696, but today — I’ll simplify everything in plain English using clean JS code and approach breakdowns.
If you want to crack DSA fast and consistently — this series is your weapon. 💥

📚 About this Series
Welcome to DSA with DAX – a 100-day coding series focused on JavaScript and real-world DSA mastery.
Each day we solve one handpicked Leetcode problem to improve problem-solving, logic-building, and JS skills — from beginner to advanced.
📘 Video Transcript & Timestamps

0:00 – Intro
0:10 – Introduction
1:55 – Question Explanation
3:00 – Example Explanation
4:25 – Approach Discussion
5:35 – Code - 1 Writing
9:20 – Code - 2 Optimized
11:50 – Time and Space Complexity
13:20 – Tomorrow Question Teaser
15:20 – Outro
💡 What You'll Learn in This Video

Problem Understanding (Leetcode 696)
Breaking the Question in Plain English
Example Walkthroughs
Grouping Logic for Binary Strings
2 JavaScript Solutions (Basic & Optimized)
Time & Space Complexity Analysis
Interview Tips and Traps to Avoid
📆 Day-Wise DSA Journey So Far:

Day 1: Two Sum – Leetcode 1
Day 2: Best Time to Buy and Sell Stock – Leetcode 121
Day 3: Valid Parentheses – Leetcode 20

Day 4: Concatenation of Array – Leetcode 1929
Day 5: Build Array from Permutation – Leetcode 1920
Day 6: Shuffle the Array – Leetcode 1470

Day 7: Kids With the Greatest Number of Candies – Leetcode 1431
Day 8: Running Sum of 1D Array – Leetcode 1480
Day 9: Richest Customer Wealth – Leetcode 1672

Day 10: Find the Highest Altitude – Leetcode 1732
Day 11: Number of Good Pairs – Leetcode 1512
Day 12: How Many Numbers Are Smaller Than the Current Number – Leetcode 1365

Day 13: Create Target Array in the Given Order – Leetcode 1389
Day 14: Count Items Matching a Rule – Leetcode 1773
Day 15: Defanging an IP Address – Leetcode 1108

Day 16: Jewels and Stones – Leetcode 771
Day 17: Goal Parser Interpretation – Leetcode 1678
Day 18: Merge Strings Alternately – Leetcode 1768

Day 19: Shuffle String – Leetcode 1528
Day 20: To Lower Case – Leetcode 709
Day 21: Reverse String – Leetcode 344

Day 22: Reverse Words in a String III – Leetcode 557
Day 23: Find the Difference – Leetcode 389
Day 24: Majority Element – Leetcode 169

Day 25: Intersection of Two Arrays – Leetcode 349
Day 26: Single Number – Leetcode 136
Day 27: Missing Number – Leetcode 268

Day 28: Length of Last Word – Leetcode 58
Day 29: First Unique Character in a String – Leetcode 387
Day 30: Valid Anagram – Leetcode 242

Day 31: Power of Two – Leetcode 231
Day 32: Happy Number – Leetcode 202
Day 33: Fizz Buzz – Leetcode 412

Day 34: Move Zeroes – Leetcode 283
Day 35: Contains Duplicate – Leetcode 217
Day 36: Two Sum II (Input Array is Sorted) – Leetcode 167

Day 37: Check If Two String Arrays Are Equivalent – Leetcode 1662
Day 38: Merge Two Sorted Lists – Leetcode 21
🌟 **Day 39: Count Binary Substrings – Leetcode 696**
🔗 Socials and Links

📌 GitHub Repo (DSA with DAX): github.com/daxpatelcg/dsa-with-dax
🌐 Portfolio: dax-patel.netlify.app
🔗 LinkedIn: linkedin.com/in/dax-cg
🐦 Twitter: twitter.com/daxpatel_cg
Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX
Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX
Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX
Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX
Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX
Leetcode 696 | Count Binary Substrings | Master DSA in JavaScript | Day 39 DSA with DAX
Count Binary Substrings | Leetcode 696 | Most Efficient Solution Explained
Count Binary Substrings | Leetcode 696 | Most Efficient Solution Explained
Count Binary Substrings | Leetcode 696 | Most Efficient Solution Explained
Count Binary Substrings | Leetcode 696 | Most Efficient Solution Explained
Count Binary Substrings | Leetcode 696 | Most Efficient Solution Explained
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