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Cod sursa(job #404551)
#include<fstream>
using namespace std;
int main(){
int a[101][101],k,j,i,n;
ios::sync_with_stdio(false);
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
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] && a[k][j] && (a[i][k]+a[k][j]<a[i][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;
}