| 시간 제한 | 메모리 제한 | 제출 | 정답 | 맞힌 사람 | 정답 비율 |
|---|---|---|---|---|---|
| 2 초 | 512 MB | 267 | 190 | 172 | 71.074% |
Given a set of rectangles {R1, R2, · · · , Rn}, compute the area of their common intersection. i.e.,
Area (R1 ∩ R2 ∩ · · · ∩ Rn)
The edges of the rectangles R1, R2, · · · , Rn, are either vertical or horizontal lines.
For example, the intersection of 4 rectangles, R1, R2, R3, and R4, in the following figure is the shaded rectangle.
T.IN The first line specifies the number of rectangles n, where 1 < n < 1,000. Since the sides of the rectangles are parallel to the x and y axes, each rectangle is bounded by the lines x = x1, x = x2, y = y1 and y = y2 and each subsequent line of the input thus specifies one rectangle in the following format:
x1 x2 y1 y2
such that 0 ≤ x1 < x2 ≤ 10,000 and 0 ≤ y1 < y2 ≤ 10,000, and x1, x2, y1 and y2 are int
The output contains the area of the intersection of all the rectangles.
2 0 2 0 2 1 3 1 3
1
3 1 4 1 8 0 2 0 5 10 15 22 35
0