任意门:http://acm.hdu.edu.cn/showproblem.php?pid=2795 Billboard Time Limit: 20000/8000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 28743    Accepted Submission(s): 11651 Problem Description At the entrance to the un…

Billboard Time Limit: 20000/8000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 21203    Accepted Submission(s): 8750 Problem Description At the entrance to the university, there is a huge rectangular billboard of…

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 th…

手动博客搬家:本文发表于20170822 21:30:17, 原地址https://blog.csdn.net/suncongbo/article/details/77488127 URL: http://acm.hdu.edu.cn/showproblem.php?pid=2795题目大意:有一个h*w的木板 (h, w<=1e9), 现在有n (n<=2e5)张1*xi的海报要贴在木板上,按1~n的顺序每次贴海报时会选择最上的一排的最左边贴 (海报不能互相覆盖), 求每张海报会被贴在哪一行…

引自:wonter巨巨的博客 定义 dp[i] := 以数字 i(不是下标 i)为结尾的最长上升长度 然后用线段树维护 dp[i]: 每个节点维护 2 个信息,一个是当前区间的最大上升长度,一个是最大上升长度的方案数, 这里再详细说下这篇题解...也是弱弱自己的理解吧... 以1-n的值为线段树所代表的区间: 然后依次更新,题目就是要找上升序列,那么我们只要每次查询0~arr[i]-1范围内最长的那个长度和方案拿出来: 然后再去0到n区间里更新,更新的值是arr[i],长度为查询到的x+1,方案…

Billboard Time Limit: 20000/8000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 11861    Accepted Submission(s): 5223 Problem Description At the entrance to the university, there is a huge rectangular billboard of s…

题意 : 有一块 h * w 的公告板,现在往上面贴 n 张长恒为 1 宽为 wi 的公告,每次贴的地方都是尽量靠左靠上,问你每一张公告将被贴在1~h的哪一行?按照输入顺序给出. 分析 : 这道题说明了每一次贴都尽量选择靠上靠左的位置,那既然这样,我们以1~h建立线段树,给每一个叶子节点赋值初值 w 表示当前行最大能够容纳宽度为 w 的公告纸,那么对于某一输入 wi 只要在线段树的尽量靠左的区间找出能够容纳这张公告的位置(即叶子节点)然后减去 wi 即可,需要对query()函数进行一点改造,将…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2795 题目大意:有一块h*w的矩形广告板,要往上面贴广告;   然后给n个1*wi的广告,要求把广告贴上去: 而且要求广告要尽量往上贴并且尽量靠左;  求每个广告的所在的位置,不能贴则为-1. 用线段树模拟,要是左子树的最大值比当前广告大,就查询更新左子树,否则就右子树. #include <iostream> #include <cstdio> #include <cstrin…

Billboard Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=2795 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…

Billboard Time Limit: 20000/8000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) 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…