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Cod sursa(job #330858)
#include <fstream.h>
#define INF 1001
int n,v[100][100];
void init(){
ifstream f("royfloyd.in");
int i,j,x;
f>>n;
for(i=0;i<n;i++)
for(j=0;j<n;j++){
f>>x;
if(!x && i!=j) v[i][j]=INF;
else v[i][j]=x;
}
f.close();
}
int main(){
init();
int i,j,k,m;
for(k=0;k<n;k++)
for(i=0;i<n;i++)
for(j=0;j<n;j++){
m=v[i][k]+v[k][j];
v[i][j]=v[i][j]<m ? v[i][j]:m;
}
ofstream g("royfloyd.out");
for(i=0;i<n;i++){
for(j=0;j<n;j++){
if(v[i][j]==INF) g<<0<<" ";
else g<<v[i][j]<<" ";
}
g<<"\n";
}
g.close();
return 0;
}