Pagini recente » Cod sursa (job #1806675) | Cod sursa (job #1305696) | Cod sursa (job #2918990) | Cod sursa (job #717660) | Cod sursa (job #2387727)
#include <bits/stdc++.h>
#define Nmax 50005
using namespace std;
ifstream fin ("dijkstra.in");
ofstream fout ("dijkstra.out");
struct muchie
{
int y, c;
};
vector <muchie> v[Nmax];
int n, m, i, x, y, c, k, d[Nmax], minn;
bool ok, viz[Nmax];
int main()
{
fin >> n >> m;
for(i=1;i<=m;i++)
{
fin >> x >> y >> c;
v[x].push_back({y, c});
}
for(i=1;i<=n;i++)
d[i]=INT_MAX;
d[1]=0;
ok=1;
while(ok)
{
ok=0;
minn=INT_MAX;
for(i=1;i<=n;i++)
if(viz[i]==0&&d[i]<minn)
{
minn=d[i];
k=i;
ok=1;
}
if(ok==0)
break;
viz[k]=1;
for(i=0;i<v[k].size();i++)
if(d[v[k][i].y]>d[k]+v[k][i].c)
d[v[k][i].y]=d[k]+v[k][i].c;
}
for(i=2;i<=n;i++)
fout << d[i] << ' ';
return 0;
}