Pagini recente » Cod sursa (job #1143601) | Cod sursa (job #1132917) | Cod sursa (job #1135810) | Monitorul de evaluare | Cod sursa (job #1000786)
#include<fstream>
#define Nmax 50099
#define Mmax 250099
#define Inf 999999999
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
int n,m,start,d[Nmax];
struct muchie{int x,y,c;} a[Mmax];
int main()
{
f>>n>>m; //>>start;
start=1;
for(int i=1;i<=m;i++)
{
f>>a[i].x>>a[i].y>>a[i].c;
if(a[i].x==start) d[a[i].y]=a[i].c;
//if(a[i].y==start) d[a[i].x]=a[i].c;
}
for(int i=1;i<=n;i++) if(d[i]==0) d[i]=250001;
int gata=0;
while(!gata)
{
gata=1;
for(int i=1; i<=m; i++ )
if(d[a[i].y]>d[a[i].x]+a[i].c)
{
gata=0;
d[a[i].y]=d[a[i].x]+a[i].c;
}
/* else
if(d[a[i].x]>d[a[i].y]+a[i].c)
{
gata=0;
d[a[i].x]=d[a[i].y]+a[i].c;
}
*/
}
for(int i=1;i<=n;i++ )
if (i!=start)
{
if(d[i]>=32000 || i==start) g<<"0 ";
else g<<d[i]<<" ";
}
f.close();g.close();
return 0;
}