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Cod sursa(job #874869)
#include<stdio.h>
#include<stdlib.h>
int n,a[105][105];
void citire()
{
freopen( "royfloyd.in","r",stdin);
freopen( "royfloyd.out","w",stdout);
int i,j;
scanf("%d",&n);
for( i=1;i<=n;i++)
for(j=1;j<=n;j++)
scanf( "%d",&a[i][j]);
}
void roy_floyd()
{ int i,j,k;
for(k=1;k<=n;k++)
for( i=1;i<=n;i++)
for( j=1;j<=n;j++)
if( a[i][k] + a[k][j] < a[i][j])
a[i][j]=a[i][k] + a[k][j];
}
void afis()
{
for( int i=1;i<=n;i++)
{
for( int j=1;j<=n;j++)
printf("%d ", a[i][j]);
printf( "\n");
}
}
int main()
{
citire();
roy_floyd();
afis();
return 0;
}