Cod sursa(job #559099)

Utilizator moonRadu Chichi moon Data 17 martie 2011 16:55:02
Problema Algoritmul lui Dijkstra Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.62 kb
#include<fstream>
#include<iostream>
#include<algorithm>
using namespace std;
int n,m,a[20001][20001],d[20001],viz[20001];
int rec(int x,int nr)
{
	int i;
	//cout<<x<<" "<<nr<<'\n';
	d[x]=nr;
	for(i=1;i<=n;i++)
		if(a[x][i] && !viz[i] && d[i]>nr+a[x][i])
		{
			viz[i]=1;
			rec(i,nr+a[x][i]);
			viz[i]=0;
		}
}

int main()
{
	int i,xx,yy,cc;
	ifstream f("dijkstra.in");
	ofstream g("dijkstra.out");
	f>>n>>m;
	for(i=1;i<=m;i++)
	{
		f>>xx>>yy>>cc;
		a[xx][yy]=cc;
	}
	viz[1]=1;
	for(i=1;i<=n;i++)
		d[i]=320000;
	rec(1,0);
	for(i=2;i<=n;i++)
		if(d[i]==320000)
			g<<"0 ";
		else g<<d[i]<<" ";
		
}