LeetCode 75 C++ | Step-by-Step Solutions (LAN Academy) - 901 Online Stock Span (C++) | Monotonic Stack | LeetCode 75 #75

LeetCode 75 C++ playlist: https://www.youtube.com/playlist?list=PLF0G-7pZcOza_jyAxwMpa5KnK3vST5smK Comment “NEXT” for the next problem link. LeetCode 901 — Online Stock Span (C++) Monotonic Stack pattern in O(1) amortized per operation. In this video, we design StockSpanner that returns the span of today’s stock price: the number of consecutive days (including today) where the price was less than or equal to today’s price. Core idea (Monotonic Decreasing Stack of (price, span)): Keep a stack of pairs (price, span) with strictly decreasing prices. For each new price, pop while the top price is less than or equal to the current price, and accumulate the spans. Push (price, accumulatedSpan) and return accumulatedSpan. Why it works: Each price is pushed and popped at most once → total work is linear across all calls. Complexity: Time: O(1) amortized per next() (O(n) total for n calls) Space: O(n) stack #LeetCode #LeetCode75 #cplusplus #leetcodecoding #leetcodesolution #leetcodechallenge #faang #fang #computerscience #cs #codingtiktok #coding #codinglife #boostofhope #fyp #codinginterview #softwareengineer #swe #tech #foryou #python #learntocode #google #techtok #programming #algorithms #learntocode @reper #foryou #viral #reper #urmaritori #for