The Suspects Time Limit: 1000MS Memory Limit: 20000K Total Submissions: 21472 Accepted: 10393 Description Severe acute respiratory syndrome (SARS), an atypical pneumonia of unknown aetiology, was recognized as a global threat in mid-March 2003. T…
The Suspects Time Limit: 1000MS Memory Limit: 20000K Total Submissions: 21598 Accepted: 10461 Description Severe acute respiratory syndrome (SARS), an atypical pneumonia of unknown aetiology, was recognized as a global threat in mid-March 2003. T…
对与知道并查集的人来说这题太水了,裸的并查集,如果你要给别人讲述并查集可以使用这个题当做例题,代码中我使用了路径压缩,还是有一定优化作用的. #include <stdio.h> #include <string.h> const int maxn = 500005; int n, m; int pa[maxn]; void init() { for (int i = 1; i <= n; i++) { pa[i] = i; } } int find(int x) { if…
题意:有编号为1到n的学生,然后有m组调查,每组调查中有a和b,表示该两个学生有同样的宗教信仰,问最多有多少种不同的宗教信仰 简单并查集 //#define LOCAL #include <iostream> #include <cstdio> #include <cstring> using namespace std; + ; int parent[maxn], n, m; int GetParent(int x) { return parent[x] == x ?…