g1101_1200.s1192_critical_connections_in_a_network

Class Solution

java.lang.Object

g1101_1200.s1192_critical_connections_in_a_network.Solution

public class Solution
extends Object

1192 - Critical Connections in a Network.

Hard

There are n servers numbered from 0 to n - 1 connected by undirected server-to-server connections forming a network where connections[i] = [ai, bi] represents a connection between servers ai and bi. Any server can reach other servers directly or indirectly through the network.

A critical connection is a connection that, if removed, will make some servers unable to reach some other server.

Return all critical connections in the network in any order.

Example 1:

Input: n = 4, connections = [[0,1],[1,2],[2,0],[1,3]]

Output: 1,3

Explanation: 3,1 is also accepted.

Example 2:

Input: n = 2, connections = [[0,1]]

Output: 0,1

Constraints:

• 2 <= n <= 105
• n - 1 <= connections.length <= 105
• 0 <= ai, bi <= n - 1
• ai != bi
• There are no repeated connections.

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
List<List<Integer>>	criticalConnections(int n, List<List<Integer>> connections)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

criticalConnections

public List<List<Integer>> criticalConnections(int n,
                                               List<List<Integer>> connections)