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223 Rectangle Area
223. Rectangle Area
1. Question
Find the total area covered by two rectilinear rectangles in a 2D plane.
Each rectangle is defined by its bottom left corner and top right corner as shown in the figure.
Rectangle Area
Assume that the total area is never beyond the maximum possible value of int.
2. Implementation
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class Solution {
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public int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
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int sum = (C - A) * (D - B) + (G - E) * (H - F);
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int intersectionHeight = Math.min(D, H) > Math.max(B, F) ? Math.min(D, H) - Math.max(B, F) : 0;
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int intersectionWidth = Math.min(C, G) > Math.max(A, E) ? Math.min(C, G) - Math.max(A, E) : 0;
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return sum - intersectionHeight * intersectionWidth;
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}
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}
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3. Time & Space Complexity
时间复杂度: O(1), 空间复杂度: O(1)
Last modified 2yr ago