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- #include<iostream>
- #include<set>
- using namespace std;
- int main()
- {
- int ne;
- cin>>ne;
- int arr[8+1];
- int adj[8+1][8+1];
- set<int>V;
- set<int>::iterator r,c;
- for(r=V.begin(); r!=V.end(); r++)
- {
- for(c=V.begin(); c!=V.end(); c++)
- {
- adj[r][c] = 0;
- }
- }
- for(int i=0; i<=8; i++)
- {
- arr[i]=0;
- }
- for(int i=1; i<=ne; i++)
- {
- int u,v;
- cin>>u>>v;
- adj[u][v]=1;
- adj[v][u]=1;
- V.insert(u);
- V.insert(v);
- }
- for(r=V.begin(); r!=V.end(); r++)
- {
- for(c=V.begin(); c!=V.end(); c++)
- {
- cout<<*r<<*c;
- }
- cout<<endl;
- }
- return 0;
- }
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