Amazon Interview Question for SDE-2s
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Constructing City- hitansu166 May 03, 2017 in India for Alexa
In a country the cities are connected through roads of 3 types 1, 2, 3.
All the roads are bi-directional. The roads of a city has some restriction.
Road of type 3: both men and women can walk
Road of type 2: only women can walk
Road of type 1: only men can walk
Now the govt. wants to remove extra roads.But the cities should be connected for both men & women.
Connected means one should able to reach from one city to other & vice-versa.
Find out the maximum no of roads can be removed so that the cities can be accessible to both men & women.
1 2 3
2 3 3
3 4 3
5 3 2
5 4 1
First line gives no of cities & no of roads. Next each 5 lines gives city source, city destination, type for a roads.
5: no of cities 5: no of roads
1: city-1 2: city-2 3: type 3 road
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