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#include<stdio.h>
#define NMax 100
int D[NMax][NMax] = {{0}};
void print_matrix(int n) {
for(int i = 0; i < n; i++ ) {
for(int j = 0; j < n; j++) {
printf("%d ", D[i][j]);
}
printf("\n");
}
printf("----\n");
}
int main(void) {
freopen("royfloyd.in", "r", stdin);
freopen("royfloyd.out", "w+", stdout);
int n;
scanf("%d", &n);
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
scanf("%d", &D[i][j]);
}
}
print_matrix(n);
for(int k = 0; k < n; k++) {
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
if( D[i][k] && D[k][j] && (D[i][j] > D[i][k] + D[k][j] || !D[i][j]) && i != j)
D[i][j] = D[i][k] + D[k][j];
}
}
}
print_matrix(n);
}