Cod sursa(job #692183)

Utilizator chirila_aronChirila Aronel chirila_aron Data 26 februarie 2012 14:36:08
Problema Floyd-Warshall/Roy-Floyd Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 0.7 kb
#include<fstream> 
#define inf 105
using namespace std;  
ifstream f("royfloyd.in"); 
ofstream g("royfloyd.out"); 
int n,k,a[inf][inf]; 
int main()
{
	int i,j;     
	f>>n;    
    for(i=1;i<=n;i++)        
        for(j=1;j<=n;j++)        
           f>>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]!=inf && a[k][j]!=inf)                  
				if(a[i][j]>a[i][k]+a[k][j] || !a[i][j])                        
					a[i][j]=a[i][k]+a[k][j];              
    for(i=1;i<=n;i++)
	{ 
        for(j=1;j<=n;j++) 
            g<<a[i][j]<<' '; 
			g<<'\n';
	} 
    return 0; 
}