根据排序不等式可知,逆序和最小(就是两个向量坐标一个递增一个递减,那么乘起来就最小) 所以排一下序,然后做一下线性dp即可 #include<cstdio> #include<cstdlib> #include<algorithm> #include<cstring> #define MAXN 105 #define ll long long using namespace std; double f[MAXN][MAXN]; int n,m; double…

C. Cellular Network time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given n points on the straight line — the positions (x-coordinates) of the cities and m points on the same line…

Cellular Network 题意: 给n个城市,m个加油站,要让m个加油站都覆盖n个城市,求最小的加油范围r是多少. 题解: 枚举每个城市,二分查找最近的加油站,每次更新答案即可,注意二分的时候不要越界oil数组,上下界都不要越.还有,int坑死人,以后绝对全用long long!!! 代码: #include <bits/stdc++.h> using namespace std; typedef long long ll; const int INF=0x3f3f3f3f; cons…

C. Cellular Network time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given n points on the straight line — the positions (x-coordinates) of the cities and m points on the same line…

C. Cellular Network time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given n points on the straight line — the positions (x-coordinates) of the cities and m points on the same line…

题目链接: C. Cellular Network time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given n points on the straight line — the positions (x-coordinates) of the cities and m points on the same…

Cellular Network CodeForces - 702C 给定 n (城市数量) 和 m (灯塔数量): 给定 a1~an 城市坐标: 给定 b1~bm 灯塔坐标: 求出灯塔照亮的最小半径 r ,使得所有城市都能被照亮. Input 3 2-2 2 4-3 0 Output 4 Input 5 31 5 10 14 174 11 15 Output 3 题解: 首先对于每个城市 a[ i ],找到离它最近的左右两个灯塔  b [ x ] , b [ x-1 ](只有最左或最右灯塔时…

Cellular Network Time Limit:3000MS     Memory Limit:0KB     64bit IO Format:%lld & %llu Submit Status Practice UVA 1456 A cellular network is a radio network made up of a number of cells each served by a base station located in the cell. The base sta…

C. Cellular Network time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given n points on the straight line — the positions (x-coordinates) of the cities and m points on the same line…

Linux:service network/Network/NetworkManager start 这三种有什么不同? 1.network service的制御网络接口配置信息改动后,网络服务必须从新启动,来激活网络新配置的使得配置生效,这部分操作和从新启动系统时时一样的作用.制御(控制)是/etc/init.d/network这个文件,可以用这个文件后面加上下面的参数来操作网络服务.例如:/etc/init.d/networkrestart同样也可以用service这个命令来操作网络服务例如…