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Cod sursa(job #614110)
#include <fstream>
#include <queue>
#include <vector>
#include <string.h>
#define INF 0x3f3f3f3f
#define max_n 50001
#define max_m 250001
#define nod first
#define cost second
using namespace std;
ifstream in("dijkstra.in");
ofstream out("dijkstra.out");
int main ()
{
int n,m,i,d[max_n],x,y,c,cst;
vector < pair < int, int > > g[max_n];
vector < pair < int, int > >::iterator it;
queue <int> q;
in >> n >> m;
for (i=1; i<=m; i++)
{
in >> x >> y >> cst;
g[x].push_back(make_pair(y,cst));
}
memset(d,INF,sizeof(d));
d[1]=0;
q.push(1);
while (!q.empty())
{
x=q.front();
q.pop();
for (it=g[x].begin(); it!=g[x].end(); it++)
{
y=(*it).nod;
c=(*it).cost;
if (d[y]>d[x]+c)
{
d[y]=d[x]+c;
q.push(y);
}
}
}
for (i=2; i<=n; i++)
if (d[i]!=INF)
out << d[i] << ' ';
else
out << '0' << ' ';
out << '\n';
return 0;
}