Cod sursa(job #1090483)

Utilizator span7aRazvan span7a Data 22 ianuarie 2014 19:06:51
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.71 kb
#include<fstream>
#define M 32000
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
short a[101][101],n;

void citire()
{
	int i,j;
	f>>n;
	for(i=1;i<=n;i++)
		for(j=1;j<=n;j++)
			f>>a[i][j];
	for(i=1;i<=n;i++)
		for(j=1;j<=n;j++)
		if(a[i][j]==0&&(i-j))
			a[i][j]=M;
}
void solve()
{
	int i,k,j;
	for(k=1;k<=n;k++)
		for(i=1;i<=n;i++)
			for(j=1;j<=n;j++)
				if((i-j)&&(i-k)&&(j-k))
					if(a[i][j]>a[i][k]+a[k][j])
						a[i][j]=a[i][k]+a[k][j];
}
void afisare()
{
	int i,j;
	for(i=1;i<=n;i++)
	{	for(j=1;j<=n;j++)
			if(a[i][j]==M)
				g<<0<<" ";
			else g<<a[i][j]<<" ";
		g<<'\n';
	}
	
}
int main()
{
	citire();
	solve();
	afisare();	
	return 0;
}