Pagini recente » Cod sursa (job #2427848) | Cod sursa (job #1362369) | Cod sursa (job #2474772) | Cod sursa (job #662624) | Cod sursa (job #1153260)
#include <iostream>
#include <fstream>
#include <vector>
#include <list>
#define MAXINT 9999999
#define cout fout
using namespace std;
struct node
{
int to,val;
};
typedef list<node> LIST_OF_NODES;
typedef vector<LIST_OF_NODES> VECTOR_OF_LISTS_OF_NODES;
typedef list<int> LIST_OF_INTS;
typedef vector<int> VECTOR_OF_INTS;
typedef vector<vector<int> > VECTOR_OF_VECTORS_OF_INTS;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
VECTOR_OF_INTS dijkstra(VECTOR_OF_LISTS_OF_NODES &a, int n, int s)
{
LIST_OF_INTS active;
active.push_back(s);
VECTOR_OF_INTS dist(n+3,MAXINT);
dist[s] = 0;
while(!active.empty())
{
int curr = active.front();
for(LIST_OF_NODES::iterator it = a[curr].begin(); it != a[curr].end(); it++)
{
int from = curr;
int to = (*it).to;
int val = (*it).val;
if(dist[to] > dist[curr]+val)
{
dist[to] = dist[curr]+val;
active.push_back(to);
}
}
active.pop_front();
}
return dist;
}
int main()
{
int n,m;
fin>>n>>m;
VECTOR_OF_LISTS_OF_NODES a(n+3);
VECTOR_OF_VECTORS_OF_INTS dist(n+3, VECTOR_OF_INTS(n+3));
for(int i=1;i<=m;i++)
{
node curr;
int from,to,val;
fin>>from>>to>>val;
curr.to = to;
curr.val = val;
a[from].push_back(curr);
curr.to = from;
a[to].push_back(curr);
}
for(int i=1;i<=0;i++)
{
cout<<i<<": ";
for(LIST_OF_NODES::iterator it=a[i].begin(); it!= a[i].end(); it++)
cout<<"("<<(*it).to<<";"<<(*it).val<<") ";
cout<<endl;
}
dist[1] = dijkstra(a,n,1);
for(int i=2;i<=n;i++)
cout<<dist[1][i]<<" ";
return 0;
for(int i=1;i<=n;i++)
dist[i] = dijkstra(a,n,i);
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
cout<<dist[i][j]<<" ";
cout<<endl;
}
}