4990: Lemonade Trade 时间限制: 1 Sec  内存限制: 128 MB  Special Judge提交: 88  解决: 17[提交][状态][讨论版][命题人:admin] 题目描述 The lunch break just started! Your mother gave you one litre of pink lemonade. You do not like pink lemonade and want blue lemonade instead. Fort…

A - Amsterdam Distance 题意:极坐标系,给出两个点,求最短距离 思路:只有两种方式,取min  第一种,先走到0点,再走到终点 第二种,走到同一半径,再走过去 #include <bits/stdc++.h> using namespace std; #define INF 0x3f3f3f3f const double PI = acos(-1.0); double n, m, r; double n1, m1, n2, m2; inline double work1(…

A Amsterdam Distance 题意 求圆环上的两点距离. 分析 显然是沿半径方向走到内圈再走圆弧最短. 代码 #include <bits/stdc++.h> using namespace std; double m,n,r,sx,sy,tx,ty; const double pi=acos(-1.0); int main(){ scanf("%lf%lf%lf%lf%lf%lf%lf",&m,&n,&r,&sx,&sy…

FatMouse' Trade Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 56784    Accepted Submission(s): 19009 Problem Description FatMouse prepared M pounds of cat food, ready to trade with the cats g…

FatMouse' Trade Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 43381    Accepted Submission(s): 14499 Problem Description FatMouse prepared M pounds of cat food, ready to trade with the cats gu…

Problem Description FatMouse prepared M pounds of cat food, ready to trade with the cats guarding the warehouse containing his favorite food, JavaBean. The warehouse has N rooms. The i-th room contains J[i] pounds of JavaBeans and requires F[i] pound…

题目大意 给一个无向图,包含 N 个点和 M 条边,问最少删掉多少条边使得图分为不连通的两个部分,图中有重边 数据范围:2<=N<=500, 0<=M<=N*(N-1)/2 做法分析 典型的无向图全局最小割,使用 Stoer-Wagner 算法 Stoer-Wagner 算法共执行 n-1 次 BFS,每次 BFS 得到一个当前图的最小 S-T 割,并且将最后 BFS 的两个点缩点,n-1 次 BFS 得到 n-1 个最小 S-T 割中的最小者就是整个无向图的全局最小割,为了讲述每…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3401 Trade Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others) 问题描述 Recently, lxhgww is addicted to stock, he finds some regular patterns after a few days' study. He forecast…

题 Description FatMouse prepared M pounds of cat food, ready to trade with the cats guarding the warehouse containing his favorite food, JavaBean. The warehouse has N rooms. The i-th room contains J[i] pounds of JavaBeans and requires F[i] pounds of c…

FatMouse' Trade Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 36632    Accepted Submission(s): 12064 Problem Description FatMouse prepared M pounds of cat food, ready to trade with the cats gu…