Pagini recente » Cod sursa (job #3139059) | Cod sursa (job #635711) | Cod sursa (job #2915821) | Cod sursa (job #1976728) | Cod sursa (job #2049719)
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
#define nmax 50005
#define oo 2000000000
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
int d[nmax],s[nmax];
int n,m;
vector <pair <int,int> > G[nmax];
void dijkstra(){
for(int i=2;i<=n;i++)
d[i]=oo;
for(int k=1;k<n;k++){
int Min=oo,nod;
for(int j=1;j<=n;j++){
if(d[j]<Min&&s[j]==0){
Min=d[j];
nod=j;
}
}
s[nod]=1;
for(int i=0;i<G[nod].size();i++){
int vecin=G[nod][i].first;
int cost=G[nod][i].second;
d[vecin]=min(d[vecin],d[nod]+cost);
}
}
}
int main()
{
fin>>n>>m;
for(int i=1;i<=m;i++){
int x,y,c;
fin>>x>>y>>c;
G[x].push_back(make_pair(y,c));
}
dijkstra();
for(int i=2;i<=n;i++){
if(d[i]==oo)
d[i]=0;
fout<<d[i]<<' ';
}
return 0;
}