Moving Tables Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 24316    Accepted Submission(s): 8053 Problem Description The famous ACM (Advanced Computer Maker) Company has rented a floor of a b…

Moving Tables Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14418    Accepted Submission(s): 4939 Problem Description The famous ACM (Advanced Computer Maker) Company has rented a floor of a b…

Problem Description The famous ACM (Advanced Computer Maker) Company has rented a floor of a building whose shape is in the following figure. The floor has 200 rooms each on the north side and south side along the corridor. Recently the Company made…

The famous ACM (Advanced Computer Maker) Company has rented a floor of a building whose shape is in the following figure. The floor has 200 rooms each on the north side and south side along the corridor. Recently the Company made a plan to reform its…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1050 AC code: #include<stdio.h> #include<string.h> int m[210]; int main(void) { int t,n,i,j,st,en,ma; scanf("%d",&t); while(t--) { memset(m,0,sizeof(m)); scanf("%d",&n)…

E - 贪心-- 区间覆盖 题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=85904#problem/E 解题思路: 贪心思想,将问题转化为区间覆盖问题,将草地的上边界作为要覆盖的区间,计算出每个洒水器覆盖的区间范围,不能覆盖的舍去,然后将洒水器按覆盖范围的左边界升序排列. 要覆盖的最右边的点right的初始值为0,遍历洒水器,找一个能覆盖住right且覆盖范围的右边界最大的洒水器,然后将该洒水器覆盖的右边界作为新的righ…

[题解]Cut the Sequence(贪心区间覆盖) POJ - 3017 题意: 给定一大堆线段,问用这些线段覆盖一个连续区间1-x的最小使用线段的数量. 题解 考虑一个这样的贪心: 先按照左端点排序,若左端点一样则谁长谁在前.现在判无解就方便了,记录一下前缀max即可.然后现在要最小化选择. 记录一个最右端点\(R\),一个暴力的办法是暴力循环判断所有线段是否满足条件,这样显然超时,你决定优化一下常数,所以你记录一下从哪个线段开始才\(l_i \ge R\).你以为你是常数优化,其实你复…

Moving Tables Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 20302    Accepted Submission(s): 6889 Problem Description The famous ACM (Advanced Computer Maker) Company has rented a floor of a…

http://acm.hdu.edu.cn/showproblem.php?pid=1050 当时这道题被放在了贪心专题,我又刚刚做了今年暑假不AC所以一开始就在想这肯定是个变过型的复杂贪心,但是后来看了题解用了巨简单的做法,统计每个点被几个区间覆盖过,找最多的那个就是答案了 感觉这种做法和物理里的动能定理啥的有点像(也不太恰当)(其实就是忽略全部具体过程,只看结果(?))…

Moving Tables Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 45555    Accepted Submission(s): 14817 Problem Description The famous ACM (Advanced Computer Maker) Company has rented a floor of a…