标签：names etc 参考 else ima nts mic == for
输入样例 1：
5
C 3 2
I 3 2
C 1 5
I 4 5
I 2 4
C 3 5
S
输出样例 1：
no
no
yes
There are 2 components.
输入样例 2：
5
C 3 2
I 3 2
C 1 5
I 4 5
I 2 4
C 3 5
I 1 3
C 1 5
S
输出样例 2：
no
no
yes
yes
The network is connected.
AC代码如下:
#include<bits/stdc++.h>
using namespace std;
int n,p[10009];
int find(int x){
if(x==p[x]) return x;
return p[x]=find(p[x]);
}
void merge(int x, int y){
int xx=find(x), yy=find(y);
if(xx!=yy) p[xx]=yy;
}
int main(){
cin>>n;
for(int i=1; i<=n; i++) p[i]=i;
getchar;
char ch=‘a‘;
int a,b;
while(1){
cin>>ch;
if(ch==‘S‘) break;
cin>>a>>b;
if(ch==‘C‘){
if(find(a)==find(b)) cout<<"yes\n";
else cout<<"no\n";
}else if(ch==‘I‘){
merge(a,b);
}
}
int cnt=0;
for(int i=1; i<=n; i++){
if(i==find(i)) cnt++;
}
if(cnt==1) cout<<"The network is connected.\n";
else cout<<"There are "<<cnt<<" components.\n";
return 0;
}
参考链接：https://blog.csdn.net/weixin_43581819/article/details/104119509
标签：names etc 参考 else ima nts mic == for
原文地址：https://www.cnblogs.com/zlzhu/p/12259484.html
