摘要：基本并查集 查看有多少集合#includeusing namespace std;int father[1001];int find(int x){while(x!=father[x])x=father[x];return x;}void un(int x,int y){x=find(x);y=find(y);if(x!=y)father[x]=y;}int main(){int t;cin>>t;while(t--){int n,m;cin>>n>>m;for(int i=1;i>x>>y;un(x,y);}int sum=0;for(i 阅读全文

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摘要：import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.*;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JTextField;import javax.swing.ImageIcon;import javax.s 阅读全文