https://oj.neu.edu.cn/problem/1501 题意:给你矩阵大小和上面的一些点,要你从左到右从一条主路穿过,并且访问这些点,问最短总路线长度. 思路:一开始对于一个点我只算了一次,其实应该把它当成长度为0的线段,然后所有点可以转化成若干条线段,将所有线段的端点纵坐标扔到数组里,排序取中位数就是主路的纵坐标,然后每条线段的贡献是线段长+两点到主路的距离之和. #include<bits/stdc++.h> #define int long long using names…
Sightseeing tour Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 9276 Accepted: 3924 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…
Euler Tour Tree最大的优点就是可以方便的维护子树信息,这点LCT是做不到的.为什么要维护子树信息呢..?我们可以用来做fully dynamic connectivity(online). Euler Tour Tree 维护将树中的边u--v变成u->v,v->u后的Euler Tour. 换根: 因为Euler Tour是一个环,那么我们可以在任意一个k->u的地方切断,然后把这段东西接到最后去,这样就把u变成根了 Link: 先换根,然后添加u->v与v->…
Tour Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 4307 Accepted: 1894 Description John Doe, a skilled pilot, enjoys traveling. While on vacation, he rents a small plane and starts visiting beautiful places. To save money, John must…
题目描述: 1015. Jill's Tour Paths Constraints Time Limit: 1 secs, Memory Limit: 32 MB Description Every year, Jill takes a bicycle tour between two villages. There are different routes she can take between these villages, but she does have an upper limit…
Sightseeing tour Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 8859 Accepted: 3728 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…
A quick tour of JSON libraries in Scala Update (18.11.2015): added spray-json-shapeless libraryUpdate (06.11.15): added circe library Some time ago I wrote a post on relational database access in Scala since I was looking for a library and there were…
Sightseeing tour Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 6986 Accepted: 2901 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…
Sightseeing tour Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beautiful city. They want to construct the tour so that every street in the city is vis…
Farm Tour Time Limit: 2MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64u Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of whic…
Tour Time Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu Description John Doe, a skilled pilot, enjoys traveling. While on vacation, he rents a small plane and starts visiting beautiful places. To save money, John must determi…
Tour Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3929 Accepted: 1761 Description John Doe, a skilled pilot, enjoys traveling. While on vacation, he rents a small plane and starts visiting beautiful places. To save money, John must…
