POJ 3411 Paid Roads Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6553 Accepted: 2430 Description A network of m roads connects N cities (numbered from 1 to N). There may be more than one road connecting one city with another. Some o…
Description A network of m roads connects N cities (numbered to N). There may be more than one road connecting one city with another. Some of the roads are paid. There are two ways to pay for travel on a paid road i from city ai to city bi: in advanc…