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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