Pagini recente » Cod sursa (job #2741317) | Cod sursa (job #1902589) | Cod sursa (job #2074820) | Cod sursa (job #2760798) | Cod sursa (job #2090403)
#include <bits/stdc++.h>
using namespace std;
ifstream in("bellmanford.in");
ofstream out("bellmanford.out");
vector < pair < int,int > > v[50005];
int dist[50005];
int viz[50005];
queue < int > Q;
int n,m;
void read()
{
in >> n >> m;
int a,b,c;
for(int i=1; i<=m; i++)
{
in >> a >> b >> c;
v[a].push_back( { b,c } );
}
for(int i=2; i<=n; i++)
dist[i] = INT_MAX;
dist[1] =0;
}
int main()
{
read();
Q.push(1);
while( !Q.empty() )
{
int head = Q.front();
Q.pop();
viz[head] ++ ;
if( viz[head] == n )
{
out << "Ciclu negativ!";
return 0;
}
m = v[head].size();
for(int i=0; i<m; i++)
{
int j = v[head].at(i).first;
int k = v[head].at(i).second;
if( dist[j] > dist[head] + k)
{
dist[j] = dist[head]+k;
Q.push(j);
}
}
}
for(int i=2; i<=n; i++)
out << dist[i] <<' ';
return 0;
}