Pagini recente » Cod sursa (job #2585124) | Cod sursa (job #2526030) | Cod sursa (job #1788462) | Cod sursa (job #311416) | Cod sursa (job #2867205)
#include <bits/stdc++.h>
#define oo 5555555
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
vector<pair<int,int> > v[50005];
int n,m;
int d[50005];
int viz[50005];
priority_queue<pair<int,int> >q;
void Lee(int s)
{
for(int i=1;i<=n;i++)
d[i]=oo;
d[s]=0;
q.push({0,s});
while(!q.empty())
{
int k=q.top().second;
q.pop();
if(viz[k]==0)
{
viz[k]=1;
for(auto w:v[k])
{
int x,y;
x=w.first;
y=w.second;
if(d[x]>d[k]+y)
{
d[x]=d[k]+y;
q.push({-d[x],x});
}
}
}
}
}
int main()
{
fin>>n>>m;
for(int i=1;i<=m;i++)
{
int x,y,c;
fin>>x>>y>>c;
v[x].push_back({y,c});
}
Lee(1);
for(int i=1;i<=n;i++)
if(d[i]==oo) d[i]=0;
for(int i=2;i<=n;i++)
fout<<d[i]<<" ";
return 0;
}