3 ms·
Not actually all-pairs max flow, you can fix the source and consider all possible sinks. In the AoC problem we also know that the min-cut is 3, so we can abort
by gloria_mundi 2y ago
Not actually all-pairs max flow, you can fix the source and consider all possible sinks. In the AoC problem we also know that the min-cut is 3, so we can abort the flow algorithm as soon as we have found a 4-flow.