int main() {
scanf("%d\n", &n);
char cc;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n; j++) {
scanf("%c", &cc);
c[i][j] = cc - '0';
}
getchar();
}
ans = 0x7fffffff;
long k, i;
for (i = 2; i <= n; i++) {
k = i; sumflow = 0;
memcpy(flow, c, sizeof(long) * (51 * 51));
for (;;) {
find_flow(k);
if (!visit[k]) { break; }
change_flow(k);
}
if (sumflow < ans) { ans = sumflow; }
}
printf("%d\n", ans);
return 0;
}
int FlowManager::handle_pdu_from_below(const PortId id, Pdu &pdu)
{
LOG_DEBUG("handle_frame_from_below()");
// check if destination address matches
if (destinations_.find(pdu.get_dest_addr()) == destinations_.end()) {
// frame is not for us
LOG_DEBUG("Ignoring frame for " << pdu.get_dest_addr());
return 0;
}
// get corresponding connection handle
FlowBase* flow = find_flow(pdu, id);
flow->handle_frame_from_below(pdu);
return 1;
}
