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![LeetCode 304. - Range Sum Query 2D - Immutable [Algorithm + Code Explained ]](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2F7mL8KJ4Pi70%2Fhq720.jpg%3Fsqp%3D-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE%3D%26rs%3DAOn4CLDEql8bvAr486l_wQC7JYHqwFvF8A&w=256&q=75)
