这道题目描述了一块矩形广告牌，各公告的宽度不同，新公告总是选择顶部最左侧的位置粘贴。输入包含广告牌的尺寸和公告的宽度，输出每个公告所在行数。解题方法采用线段树，存储广告牌每行剩余宽度，通过查询判断公告能否被放置。
Problem Description
At the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board is the place where all possible announcements are posted: nearest programming competitions, changes in the dining room menu, and other important information.
On September 1, the billboard was empty. One by one, the announcements started being put on the billboard.
Each announcement is a stripe of pa
On September 1, the billboard was empty. One by one, the announcements started being put on the billboard.
Each announcement is a stripe of pa
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