Solved LeetCode 42 – Trapping Rain Water using Java  Used an optimal two-pointer approach to calculate trapped water efficiently. ✔️ Clean code ✔️ Interview ready ✔️ O(n) time | O(1) space Great problem for mastering arrays and pointers. #LeetCode #TrappingRainWater #JavaProgramming #DSA #CodingInterview #LeetCode42 #TwoPointer #JavaDSA #InterviewPrep #ProblemSolving | CodingHero | Facebook
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Solved LeetCode 42 – Trapping Rain Water using Java  Used an opti…
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Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want solutions in C++, Java & Python Day 37/200: LeetCode 42 — Trapping Rain Water 💧 Given n non-negative integers representing an elevation map, compute how much water it can trap after raining ☔ ✅ Brute Force: For each bar, find left & right max → O(n²) ❌ ✅ Optimal (Two Pointer): O(n) ✅ Approach (Two Pointer): Use left and right pointers. Keep track of leftMax and rightMax. Move the smaller height pointer inward. Add trapp
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DSA in Telugu on Instagram: "Solving the Trapping Rain Water problem using the Two Pointers approach. An optimal way to reduce space and think smart instead of brute force. 💡 Watch till the end to understand the logic clearly. #dsa #interview #leetcode #btech #discipline techtips source amazon placement coding consistencyiskey stayupdated codinglife techinterview interviewprep techcareers"
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