Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4263 Accepted Submission(s): 1510 Problem Description Consider the following exercise, found in a generic linear algebra t…
pid=2767">http://acm.hdu.edu.cn/showproblem.php?pid=2767 Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2926 Accepted Submission(s): 1100 Problem Description Conside…
Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9296 Accepted Submission(s): 3281 Problem Description Consider the following exercise, found in a generic linear algebra t…
Proving Equivalences Time Limit : 4000/2000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other) Total Submission(s) : 3 Accepted Submission(s) : 1 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description Consider the follo…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2767 题意:问最少加多少边可以让所有点都相互连通. 题解:如果强连通分量就1个直接输出0,否者输出入度为0的缩点,出度为0的缩点和的最大值 #include <iostream> #include <cstring> #include <cstdio> using namespace std; const int N = 2e4 + 10; const int M = 5e…
Consider the following exercise, found in a generic linear algebra textbook. Let A be an n × n matrix. Prove that the following statements are equivalent: 1. A is invertible. 2. Ax = b has exactly one solution for every n × 1 matrix b. 3. Ax = b is c…
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4343 Accepted Submission(s): 1541 Problem Description Consider the following exercise, found in a generic linear algebra textbook. Let A be an…
Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3743 Accepted Submission(s): 1374 Problem Description Consider the following exercise, found in a generic linear algebra…
Proving Equivalences Time Limit : 4000/2000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other) Total Submission(s) : 1 Accepted Submission(s) : 1 Problem Description Consider the following exercise, found in a generic linear algebra textbook…
Proving Equivalences 题目链接(点击) 参考博客(点击) Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 9497 Accepted Submission(s): 3349Problem Description Consider the following exercise, found in a generi…
Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9208 Accepted Submission(s): 3257 Problem Description Consider the following exercise, found in a generic linear algebra t…
Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4384 Accepted Submission(s): 1556 Problem Description Consider the following exercise, found in a generic linear algebra t…
Proving Equivalences Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10665 Accepted Submission(s): 3606 Problem Description Consider the following exercise, found in a generic linear algebra…
Intelligence System Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1859 Accepted Submission(s): 799 Problem Description After a day, ALPCs finally complete their ultimate intelligence syste…
Given a directed graph G, con- sider the following transformation. First, create a new graph T(G) to have the same vertex set as G. Cre- ate a directed edge between two vertices u and v in T(G) if and only if there is a path between u and v in G that…
Every cow's dream is to become the most popular cow in the herd. In a herd of N (1 <= N <= 10,000) cows, you are given up to M (1 <= M <= 50,000) ordered pairs of the form (A, B) that tell you that cow A thinks that cow B is popular. Since pop…
题目描述 一些学校连入一个电脑网络.那些学校已订立了协议:每个学校都会给其它的一些学校分发软件(称作"接受学校").注意即使 B 在 A 学校的分发列表中, A 也不一定在 B 学校的列表中. 你要写一个程序计算,根据协议,为了让网络中所有的学校都用上新软件,必须接受新软件副本的最少学校数目(子任务 A).更进一步,我们想要确定通过给任意一个学校发送新软件,这个软件就会分发到网络中的所有学校.为了完成这个任务,我们可能必须扩展接收学校列表,使其加入新成员.计算最少需要增加几个扩展,使得…