Description Input     第1行:四个用空格隔开的整数Pj Bi,B2,R. P(1≤P≤5)表示石子的个数,Bi(-5×100000≤Bi≤5×100000)和B2(-5×100000≤B2≤5×100000)表示两个河堤的z坐标,R(1≤R≤5×100000)表示你要描述湖面多少秒．没有两个石子会在同一时间砸到同一地点,两个河堤一定有不同的坐标,没有石子会砸到河堤上去．     第2到P+1行:每行有三个用空格隔开的整数描述了一颗石子,X,K T(-5×100000≤X,K…

打完模拟题来庆祝一波:):感觉最近陷入一种“口胡五分钟打题两小时”的巨坑之中…… Description Input     第1行:四个用空格隔开的整数Pj Bi,B2,R. P(1≤P≤5)表示石子的个数,Bi(-5×100000≤Bi≤5×100000)和B2(-5×100000≤B2≤5×100000)表示两个河堤的z坐标,R(1≤R≤5×100000)表示你要描述湖面多少秒．没有两个石子会在同一时间砸到同一地点,两个河堤一定有不同的坐标,没有石子会砸到河堤上去．     第2到P+1行…

Description A dip in the milk market has forced the cows to move to the city. The only employment available is in the venerable field of taxi-driving. Help the cows learn their way around the city. Given a city map with E (1 <= E <= 40) east/west st…

一条边<u,v>表示u选那么v一定被选. #include <iostream> #include <cstring> #include <cstdio> #include <algorithm> using namespace std; ; ; struct EDGE{int to,next;}edge[Maxm]; int T,m,Stack[Maxn],head[Maxn],Belong[Maxn],Id[Maxn],Dfn[Maxn],L…

手动博客搬家: 本文发表于20180226 23:35:26, 原地址https://blog.csdn.net/suncongbo/article/details/79382991 题目链接: (poj)http://poj.org/problem?id=1061 (bzoj)http://www.lydsy.com/JudgeOnline/problem.php?id=1477 (Luogu)https://www.luogu.org/problemnew/show/P1516 数据强度对比…

1687: [Usaco2005 Open]Navigating the City 城市交通 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 122  Solved: 85[Submit][Status][Discuss] Description     由于牛奶市场的需求,奶牛必须前往城市,但是唯一可用的交通工具是出租车．教会奶牛如何在城市里打的．     给出一个城市地图,东西街区E(1≤E≤40),南北街区N(1≤N≤30).制作一个开车指南给出…

1674: [Usaco2005]Part Acquisition Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 337  Solved: 162[Submit][Status][Discuss] Description The cows have been sent on a mission through space to acquire a new milking machine for their barn. They are flying…

题目链接:BZOJ - 1733 题目分析 直接二分这个最大边的边权,然后用最大流判断是否可以有 T 的流量. 代码 #include <iostream> #include <cstdlib> #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> using namespace std; const int MaxN = 200 + 5,…

题目 1739: [Usaco2005 mar]Space Elevator 太空电梯 Time Limit: 5 Sec  Memory Limit: 64 MB Description The cows are going to space! They plan to achieve orbit by building a sort of space elevator: a giant tower of blocks. They have K (1 <= K <= 400) differe…

题目 1672: [Usaco2005 Dec]Cleaning Shifts 清理牛棚 Time Limit: 5 Sec  Memory Limit: 64 MB Description Farmer John's cows, pampered since birth, have reached new heights of fastidiousness. They now require their barn to be immaculate. Farmer John, the most…