LeetCode 75 C++ | Step-by-Step Solutions (LAN Academy) - LeetCode 739 | Daily Temperatures (C++) — Monotonic Stack in O(n)

In this video we solve LeetCode 739 – Daily Temperatures using the classic monotonic stack pattern. We are given an array temperatures[]. For each day i, we want to know how many days we must wait until a warmer temperature appears. If no warmer day exists, the answer is 0. Core idea (Monotonic Decreasing Stack): Keep a stack of indices whose temperatures are strictly decreasing. When we see a temperature T[i] that is higher than the temperature at the stack top, we can resolve that previous day: answer[prev] = i - prev. Pop until the stack is valid again, then push i. Complexity: Time: O(n) (each index is pushed and popped at most once) Space: O(n) for the stack If you want more problems explained in C++ (clean patterns + interview-ready thinking), subscribe and check the playlist. #leetcode #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