Solution (leetcode-in-java 1.20 API)

java.lang.Object
- g1701_1800.s1791_find_center_of_star_graph.Solution

```
public class Solution
extends Object
```
1791 - Find Center of Star Graph.
Easy

There is an undirected star graph consisting of n nodes labeled from 1 to n. A star graph is a graph where there is one center node and exactly n - 1 edges that connect the center node with every other node.

You are given a 2D integer array edges where each edges[i] = [u_i, v_i] indicates that there is an edge between the nodes u_i and v_i. 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 <= u_i, v_i <= n
- u_i != v_i
- The given edges represent a valid star graph.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Solution()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int findCenter(int[][] edges)
  - 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

findCenter

public int findCenter(int[][] edges)