Cod sursa(job #2313560)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 7 ianuarie 2019 09:05:57
Problema Algoritmul lui Dijkstra Scor 90
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.44 kb
#include<fstream>
using namespace std;
#define I 0xfffff
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
struct C
{
    int a,b,c;
}a[250001];
int n,m,i,d[50001],o;
int main()
{
	f>>n>>m;
	for(i=1;i<=m;i++)
        f>>a[i].a>>a[i].b>>a[i].c;
	for(i=2;i<=n;i++)
        d[i]=I;
	while(!o)
		for(o=i=1;i<=m;i++)
            if(d[a[i].b]>d[a[i].a]+a[i].c)
				o=0,d[a[i].b]=d[a[i].a]+a[i].c;
	for(i=2;i<=n;i++)
        g<<(d[i]<I?d[i]:0)<<" ";
}