In this video, you’ll master the Stock Span Problem using a Stack — the pattern behind many top coding interviews at Amazon, Microsoft, and Google.
Most students try brute force and fail. In this lesson, I break down the monotonic stack logic step-by-step, dry-run every case, and show you exactly how the algorithm “thinks.”
You will learn:
• Why brute force is wrong
• Why stack is the right tool
• How to maintain a decreasing stack
• How to compute span in O(N) time
• Full dry run on the classic example
• How this pattern appears in many DSA problems
🔹 Sample Input Used in Video
100 80 60 70 60 75 85
🔹 Final Output
1 1 1 2 1 4 6
If you want to crack interviews and actually understand stacks (not memorize them) — this video is for you.
📌 Subscribe & follow the playlist to build DSA the right way — from the system level.
https://www.youtube.com/playlist?list=PL0n99JuVgkzlaz_g5cM2b5r9lOFD5ghy0
━━━━━━━━━━━━━━━
📌 Timestamps
━━━━━━━━━━━━━━━
00:00 – Problem Statement
02:08 – Dry Run
05:29 – Full Code Begins
05:33 – calculateStockSpan() Method
11:24 – main() Method
12:57 – Output
13:03 – Outro
━━━━━━━━━━━━━━━
💡 Connect with me
━━━━━━━━━━━━━━━
If you love clear DSA explanations, subscribe for more.
#MinimumStack #DataStructures #Java #CodingInterviews #FAANG #DSA #Stack
👍 If this helped you:
Like the video
Subscribe for DSA explained clearly
Comment “STACK” for more problems
If this helped you, **LIKE 👍 | SUBSCRIBE 🔔 | SHARE** with your study group!
