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Cod sursa(job #953267)
#include<iostream>
#include<fstream>
#include<algorithm>
using namespace std;
int main(){
ifstream in("royfloyd.in");
ofstream out("royfloyd.out");
int n;
in>>n;
int a[100][100];
for(int i=0;i<n;i++)
for(int j=0;j<n;j++)
in>>a[i][j];
for(int k=0;k<n;k++)
for(int i=0;i<n;i++)
for(int j=0;j<n;j++)
if (a[i][k] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j]) && i != j) a[i][j] = a[i][k] + a[k][j];
for(int i=0;i<n;i++){
for(int j=0;j<n;j++)
out<<a[i][j]<<" ";
out<<'\n';
}
return 0;
}