Pagini recente » Cod sursa (job #1118059) | Cod sursa (job #338849) | Cod sursa (job #1381297) | Cod sursa (job #642927) | Cod sursa (job #1336846)
#include <iostream>
#include <cstdio>
#include <queue>
#include <vector>
#define inf 10000000000000;
using namespace std;
int m,n,d[50000];
struct vecin
{
int x,c;
};
vector <vecin> a[250010];
queue <int> q;
void citire()
{
freopen("dijkstra.in","r",stdin);
scanf("%d %d",&n,&m);
for(int i=0;i<m;i++)
{
int k;
vecin aux;
scanf("%d %d %d",&k,&aux.x,&aux.c);
a[k].push_back(aux);
}
for(int i=2;i<50000;i++)
d[i]=inf;
}
void Dijkstra()
{
q.push(1);
while(!q.empty())
{
int k = q.front();
q.pop();
for(int i=0;i<a[k].size();i++)
{
if(d[k]+a[k][i].c<d[a[k][i].x])
{
q.push(a[k][i].x);
d[a[k][i].x]=d[k]+a[k][i].c;
}
}
}
}
int main()
{
citire();
Dijkstra();
freopen("dijkstra.out","w",stdout);
for(int i=2;i<=n;i++)
printf("%d ",d[i]);
return 0;
}