Cod sursa(job #541946)

Utilizator andreirulzzzUPB-Hulea-Ionescu-Roman andreirulzzz Data 25 februarie 2011 16:45:02
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.5 kb
#include <cstdio>
using namespace std;

int k,n,i,j,a[128][128];

int main(){
	freopen("royfloyd.in","r",stdin);
	freopen("royfloyd.out","w",stdout);
	scanf("%d",&n);
	for(i=1;i<=n;++i)for(j=1;j<=n;++j)scanf("%d",&a[i][j]);
	for(k=1;k<=n;++k)
		for(i=1;i<=n;++i)
			for(j=1;j<=n;++j)
				if(i!=j&&a[i][k]&&a[k][j]&&(a[i][j]>a[i][k]+a[k][j]||a[i][j]==0))
					a[i][j]=a[i][k]+a[k][j];
	
	for(i=1;i<=n;++i){
		for(j=1;j<=n;++j)
			printf("%d ",a[i][j]);
		printf("\n");
		}
	return 0;
}