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| pair<int, int> calculateIntersection(pair<pair<int, int>, pair<int, int>> rect1, pair<pair<int, int>, pair<int, int>> rect2) {
int x1 = max(rect1.first.first, rect2.first.first);
int y1 = max(rect1.first.second, rect2.first.second);
int x2 = min(rect1.second.first, rect2.second.first);
int y2 = min(rect1.second.second, rect2.second.second);
int width = max(0, x2 - x1);
int height = max(0, y2 - y1);
return make_pair(width, height);
}
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