Growth in 2 Dimensions

Asked at IXL · Coding Questions · Difficulty: Medium · Last asked Jul 15, 2026

Start with an infinite two dimensional grid filled with zeros, indexed from (1, 1) at the bottom left corner with coordinates increasing toward the top and right. Given a series of coordinates (r, c), where r is the ending row and c is the ending column, add 1 to each element in the range from (1, 1) to (r, c) inclusive. Once all coordinates are processed, determine how many cells contain the maximal value in the grid.

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