Class Solution
- java.lang.Object
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- g1701_1800.s1791_find_center_of_star_graph.Solution
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public class Solution extends Object
1791 - Find Center of Star Graph.Easy
There is an undirected star graph consisting of
n
nodes labeled from1
ton
. A star graph is a graph where there is one center node and exactlyn - 1
edges that connect the center node with every other node.You are given a 2D integer array
edges
where eachedges[i] = [ui, vi]
indicates that there is an edge between the nodesui
andvi
. Return the center of the given star graph.Example 1:
Input: edges = [[1,2],[2,3],[4,2]]
Output: 2
Explanation: As shown in the figure above, node 2 is connected to every other node, so 2 is the center.
Example 2:
Input: edges = [[1,2],[5,1],[1,3],[1,4]]
Output: 1
Constraints:
3 <= n <= 105
edges.length == n - 1
edges[i].length == 2
1 <= ui, vi <= n
ui != vi
- The given
edges
represent a valid star graph.
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
findCenter(int[][] edges)
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