Cod sursa(job #443942)

Utilizator drywaterLazar Vlad drywater Data 18 aprilie 2010 22:28:49
Problema Floyd-Warshall/Roy-Floyd Scor 50
Compilator cpp Status done
Runda Arhiva educationala Marime 0.55 kb
#include <stdio.h>
FILE *f=fopen("royfloyd.in","r"),*g=fopen("royfloyd.out","w");
int a[101][101],n,i,j,k;
int main(void)
{
	fscanf(f,"%d",&n);
	for (i=1;i<=n;i++)
		for (j=1;j<=n;j++) fscanf(f,"%d",&a[i][j]);
	for (i=1;i<=n;i++)
	{
		for (j=1;j<=n;j++)
			if (a[i][j]!=0 && j!=i)
			{
				for (k=1;k<=n;k++)
					if (a[j][k]!=0 && k!=i)
						if (a[i][k]==0 || a[j][k]>a[j][i]+a[i][k]) {a[j][k]=a[j][i]+a[i][k];}
			}
	}
	for (i=1;i<=n;i++)
	{
		for (j=1;j<=n;j++) fprintf(g,"%d ",a[i][j]);
		fprintf(g,"\n");
	}
	fclose(g);
	return 0;
}