Dear all,
PA4 has been updated on Ceiba, you can re-download it.
We have changed the usage of the command is_flow according to the vote in class.
The command is_flow is used as follows:
is_flow -s <sourcenode> -t <sinknode> -i <dot_filename>
Now, you should check whether the input dot file is a flow of the original
graph from the source node to the sink node.
By the way, all the commands in PA3 will not be tested again,
and thus you don't have to support them in PA4.
TA 黄至敬