Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <iostream>
- #include <fstream>
- #define INFINIT 1000000000
- using namespace std;
- ifstream fin("kruskal.in");
- ofstream fout("kruskal.out");
- struct muchie{
- int i,j,cost;
- };
- int n , m , t[105];
- muchie x[5000];
- int v[5000];
- int main()
- {
- fin >> n >> m;
- for(int i = 0 ; i < m ; ++i)
- fin >> x[i].i >> x[i].j >> x[i].cost;
- for(int i = 0 ; i < m - 1; i ++)
- for(int j = i + 1 ; j < m ; ++j)
- if(x[i].cost > x[j].cost)
- {
- muchie aux = x[i];
- x[i] = x[j];
- x[j] = aux;
- }
- for(int i =1 ; i <= n ; ++i)
- t[i] = i;
- int S = 0, cnt = 0;
- for(int i = 0 ; i < m && cnt < n ; i ++)
- if(t[x[i].i] != t[x[i].j])
- {
- v[i] = 1;
- S += x[i].cost;
- int ai = t[x[i].i], aj = t[x[i].j];
- for(int j =1 ; j <= n ; ++j)
- if(t[j] == aj)
- t[j] = ai;
- }
- fout << S << "\n";
- for(int i = 0 ; i < m ; ++i)
- if(v[i] == 1)
- fout << x[i].i << " " << x[i].j << "\n";
- return 0;
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement