Pagini recente » Diferente pentru utilizator/robybrasov intre reviziile 36 si 35 | Cod sursa (job #2452574) | Monitorul de evaluare | Cod sursa (job #2078776) | Cod sursa (job #1998929)
#include <iostream>
#include <fstream>
#define oo 9999999
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
int a[1000][1000], viz[50000], dist[5000], n, m, st, min1, im;
int main()
{
int i, j, x, y, c;
f>>n;
f>>m;
for (i=1; i<=m; i++)
{
f>>x>>y>>c;
a[x][y]=c;
}
for (i=1; i<=n; i++)
for (j=1; j<=n; j++)
{
// f>>a[i][j];
if (a[i][j]==0 && i!=j) a[i][j]=oo;
}
st=1;
viz[st]=1;
for (i=1; i<=n; i++)
dist[i]=a[1][i];
for (i=2; i<=n; i++)
{
min1=oo;
for (j=1; j<=n; j++)
if (dist[j]<min1 && viz[j]==0)
{
min1=dist[j];
im=j;
}
viz[im]=1;
for (j=1; j<=n; j++)
if (viz[j]==0 && dist[im]+a[im][j]<dist[j])
if (a[im][j]<oo) dist[j]=dist[im]+a[im][j];
}
for (i=2; i<=n; i++) g<<dist[i]<<" ";
return 0;
}