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- graf.be.txt*******************************
- 7
- 7
- 1 3
- 1 4
- 1 7
- 2 3
- 2 4
- 4 5
- 4 6
- *****************************************
- #include <iostream>
- #include <fstream>
- using namespace std;
- void feltolt(int a[][30],int &n,int &m)
- {
- ifstream f("graf.be.txt");
- f>>n>>m;
- int x,y;
- for(int i=1; i<=m; i++)
- {
- f>>x>>y;
- a[x][y]=1;
- a[y][x]=1;
- }
- f.close();
- }
- void bf(int a[][30],int n,int k,int s[],int &u)
- {
- int l[30]={0},e=1;
- s[1]=k; l[k]=1;
- u=1;
- while(e<=u)
- {
- for(int j=1;j<=n;j++)
- if(a[s[e]][j]==1 && l[j]==0)
- {
- u++;
- s[u]=j;
- l[j]=1;
- }
- e++;
- }
- }
- int main()
- {
- int a[30][30]={0},n,m,s[30],u;
- feltolt(a,n,m);
- bf(a,n,2,s,u);
- for(int i=1;i<=u;i++) cout<<s[i]<<" ";
- return 0;
- }
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