sweep line-The Skyline Problem】的更多相关文章

2020-01-10 17:51:05 问题描述: 问题求解: 本题是经典的sweep line问题. 对于sweep line问题我们需要考虑的只有两点: 1. 延水平方向 / 时间方向 :时间队列 event queue,一般来说是一个优先队列: 2. 延垂直方向 :sweep line status,即当前的扫描线的状态,一般会将交点按照顺序排序: 对于本题来说,sweep line status可以使用一个multi set来进行维护,当然由于在Java中没有multi set,因此需要…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
391. Number of Airplanes in the Sky https://www.lintcode.com/problem/number-of-airplanes-in-the-sky/description?_from=ladder&&fromId=4 思路:将起飞时间和降落时间放到同一个数组中, 标识出是起飞还是降落时间, 然后对数组排序,遍历数组即可, 碰到起飞计数器加一, 碰到降落计数器减一. 维护最大值作为答案. 注意降落优先于起飞 可通过flag标记降落为0 上升…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
Problem: A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), w…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
题目: A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you aregiven the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a…