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Cod sursa(job #508502)
#include<stdio.h>
#include<stdlib.h>
int path[103][103], n;
void ReadData();
void Royfloyd();
void PrintData();
int main() {
freopen("royfloyd.in", "r", stdin);
freopen("royfloyd.out", "w", stdout);
ReadData();
Royfloyd();
PrintData();
return 0;
}
void ReadData() {
int i, j;
scanf("%d", &n);
for(i = 0; i < n; i++) {
for(j = 0; j < n; j++) {
scanf("%d", &path[i][j]);
}
}
}
void Royfloyd() {
int i, j, k;
for(k = 0; k < n; k++) {
for(i = 0; i < n; i++) {
for(j = 0; j < n; j++) {
if(path[i][k] && path[k][j] && (path[i][j] > path[i][k] + path[k][j] || !path[i][j]) && i != j) {
path[i][j] = path[i][k] + path[k][j];
}
}
}
}
}
void PrintData() {
int i, j;
for(i = 0; i < n; i++) {
for(j = 0; j < n; j++) {
printf("%d ", path[i][j]);
}
printf("\n");
}
}