//게시 중....
A city is made up exclusively of one-way streets. Each street in the city has a capacity, the maximum number of cars it can carry per hour.
Any route(path) alse has a capacity , which is the minimum of the capacities of the streets along that route.
A redundancy ratio from point A to point B is the ratio of the max
입력 출력
출처:greaternewyork/2012/