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Cod sursa(job #683235)
#include<iostream>
#include<fstream>
#define inf -1
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int n,m,a[105][105],v[105]={};
struct cost
{
int x,y,c;
}graf[10];
void citire()
{
int i,j;
fin>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
fin>>a[i][j];
}
}
void roy()
{
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]!=inf && a[k][j]!=inf)
{
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++)
fout<<a[i][j]<<' ';
fout<<endl;
}
}
int main()
{
citire();
roy();
afisare();
return 0;
}